Index (LangChain4j :: Core 0.28.0 API)

A B C D E F G H I J K L M N O P Q R S T U V W
All Classes and Interfaces|All Packages|Constant Field Values|Serialized Form

A

ABSOLUTE_DIRECTORY_PATH - Static variable in class dev.langchain4j.data.document.Document: Common metadata key for the absolute path of the directory from which the document was loaded.
add(Embedding) - Method in interface dev.langchain4j.store.embedding.EmbeddingStore: Adds a given embedding to the store.
add(Embedding, Embedded) - Method in interface dev.langchain4j.store.embedding.EmbeddingStore: Adds a given embedding and the corresponding content that has been embedded to the store.
add(ChatMessage) - Method in interface dev.langchain4j.memory.ChatMemory: Adds a message to the chat memory.
add(TokenUsage) - Method in class dev.langchain4j.model.output.TokenUsage: Adds the token usage of two responses together.
add(String, Embedding) - Method in interface dev.langchain4j.store.embedding.EmbeddingStore: Adds a given embedding to the store.
add(String, Object) - Method in class dev.langchain4j.data.document.Metadata: Adds a key-value pair to the metadata.
add(String, String) - Method in class dev.langchain4j.data.document.Metadata: Adds a key-value pair to the metadata.
addAll(List<Embedding>) - Method in interface dev.langchain4j.store.embedding.EmbeddingStore: Adds multiple embeddings to the store.
addAll(List<Embedding>, List<Embedded>) - Method in interface dev.langchain4j.store.embedding.EmbeddingStore: Adds multiple embeddings and their corresponding contents that have been embedded to the store.
addOptionalParameter(String, JsonSchemaProperty...) - Method in class dev.langchain4j.agent.tool.ToolSpecification.Builder: Adds an optional parameter to the tool.
addOptionalParameter(String, Iterable<JsonSchemaProperty>) - Method in class dev.langchain4j.agent.tool.ToolSpecification.Builder: Adds an optional parameter to the tool.
addParameter(String, JsonSchemaProperty...) - Method in class dev.langchain4j.agent.tool.ToolSpecification.Builder: Adds a parameter to the tool.
addParameter(String, Iterable<JsonSchemaProperty>) - Method in class dev.langchain4j.agent.tool.ToolSpecification.Builder: Adds a parameter to the tool.
aggregate(Map<Query, Collection<List<Content>>>) - Method in interface dev.langchain4j.rag.content.aggregator.ContentAggregator: Aggregates all Contents retrieved by all ContentRetrievers using all Querys.
aggregate(Map<Query, Collection<List<Content>>>) - Method in class dev.langchain4j.rag.content.aggregator.DefaultContentAggregator
aggregate(Map<Query, Collection<List<Content>>>) - Method in class dev.langchain4j.rag.content.aggregator.ReRankingContentAggregator
AI - Enum constant in enum dev.langchain4j.data.message.ChatMessageType: A message from the AI.
aiMessage(ToolExecutionRequest...) - Static method in class dev.langchain4j.data.message.AiMessage: Create a new AiMessage with the given tool execution requests.
aiMessage(String) - Static method in class dev.langchain4j.data.message.AiMessage: Create a new AiMessage with the given text.
aiMessage(List<ToolExecutionRequest>) - Static method in class dev.langchain4j.data.message.AiMessage: Create a new AiMessage with the given tool execution requests.
AiMessage - Class in dev.langchain4j.data.message: Represents a response message from an AI (language model).
AiMessage(String) - Constructor for class dev.langchain4j.data.message.AiMessage: Create a new AiMessage with the given text.
AiMessage(List<ToolExecutionRequest>) - Constructor for class dev.langchain4j.data.message.AiMessage: Create a new AiMessage with the given tool execution requests.
and(Filter) - Method in interface dev.langchain4j.store.embedding.filter.Filter
and(Filter, Filter) - Static method in interface dev.langchain4j.store.embedding.filter.Filter
And - Class in dev.langchain4j.store.embedding.filter.logical
And(Filter, Filter) - Constructor for class dev.langchain4j.store.embedding.filter.logical.And
apply(Object) - Method in class dev.langchain4j.model.input.PromptTemplate: Applies a value to a template containing a single variable.
apply(Map<String, Object>) - Method in class dev.langchain4j.model.input.PromptTemplate: Applies multiple values to a template containing multiple variables.
areNotNullOrBlank(String...) - Static method in class dev.langchain4j.internal.Utils: Are all the given strings not null and not blank?
argument(ToolExecutionRequest, String) - Static method in class dev.langchain4j.agent.tool.ToolExecutionRequestUtil: Get an argument value from ToolExecutionRequest.
arguments() - Method in class dev.langchain4j.agent.tool.ToolExecutionRequest: Returns the arguments of the tool.
arguments(String) - Method in class dev.langchain4j.agent.tool.ToolExecutionRequest.Builder: Sets the arguments.
argumentsAsMap(String) - Static method in class dev.langchain4j.agent.tool.ToolExecutionRequestUtil: Convert arguments to map.
ARRAY - Static variable in class dev.langchain4j.agent.tool.JsonSchemaProperty: A property with key "type" and value "array".
asMap() - Method in class dev.langchain4j.data.document.Metadata: Get a copy of the metadata as a map of key-value pairs.
augment(UserMessage, Metadata) - Method in class dev.langchain4j.rag.DefaultRetrievalAugmentor
augment(UserMessage, Metadata) - Method in interface dev.langchain4j.rag.RetrievalAugmentor: Augments the provided UserMessage with retrieved content.
AUTO - Enum constant in enum dev.langchain4j.data.message.ImageContent.DetailLevel: Auto detail.

B

backoffExp(double) - Method in class dev.langchain4j.internal.RetryUtils.RetryPolicy.Builder: Sets the backoff exponent.
base64Data() - Method in class dev.langchain4j.data.image.Image: Get the base64 data of the image.
base64Data(String) - Method in class dev.langchain4j.data.image.Image.Builder: Set the base64 data of the image.
between(Embedding, Embedding) - Static method in class dev.langchain4j.store.embedding.CosineSimilarity: Calculates cosine similarity between two vectors.
BOOLEAN - Static variable in class dev.langchain4j.agent.tool.JsonSchemaProperty: A property with key "type" and value "boolean".
build() - Method in class dev.langchain4j.agent.tool.ToolExecutionRequest.Builder: Returns a ToolExecutionRequest built from the parameters previously set.
build() - Method in class dev.langchain4j.agent.tool.ToolParameters.Builder: Returns a ToolParameters built from the parameters previously set.
build() - Method in class dev.langchain4j.agent.tool.ToolSpecification.Builder: Returns a ToolSpecification built from the parameters previously set.
build() - Method in class dev.langchain4j.data.image.Image.Builder: Build the Image.
build() - Method in class dev.langchain4j.internal.RetryUtils.RetryPolicy.Builder: Builds a RetryPolicy.
build() - Method in class dev.langchain4j.store.embedding.EmbeddingStoreIngestor.Builder: Builds the EmbeddingStoreIngestor.
builder() - Static method in class dev.langchain4j.agent.tool.ToolExecutionRequest: Creates builder to build ToolExecutionRequest.
builder() - Static method in class dev.langchain4j.agent.tool.ToolParameters: ToolParameters builder static inner class.
builder() - Static method in class dev.langchain4j.agent.tool.ToolSpecification: Creates builder to build ToolSpecification.
builder() - Static method in class dev.langchain4j.data.image.Image: Create a new Image.Builder.
builder() - Static method in class dev.langchain4j.rag.DefaultRetrievalAugmentor
builder() - Static method in class dev.langchain4j.store.embedding.EmbeddingStoreIngestor: Creates a new EmbeddingStoreIngestor builder.
Builder() - Constructor for class dev.langchain4j.data.image.Image.Builder: Create a new Image.Builder.
Builder() - Constructor for class dev.langchain4j.internal.RetryUtils.RetryPolicy.Builder: Construct a RetryPolicy.Builder.
Builder() - Constructor for class dev.langchain4j.store.embedding.EmbeddingStoreIngestor.Builder: Creates a new EmbeddingStoreIngestor builder.

C

Chain<Input,Output> - Interface in dev.langchain4j.chain: Represents a chain step that takes an input and produces an output.
chatLanguageModel - Variable in class dev.langchain4j.rag.query.router.LanguageModelQueryRouter
chatLanguageModel - Variable in class dev.langchain4j.rag.query.transformer.CompressingQueryTransformer
chatLanguageModel - Variable in class dev.langchain4j.rag.query.transformer.ExpandingQueryTransformer
ChatLanguageModel - Interface in dev.langchain4j.model.chat: Represents a language model that has a chat interface.
chatMemory() - Method in class dev.langchain4j.rag.query.Metadata
ChatMemory - Interface in dev.langchain4j.memory: Represents the memory (history) of a chat conversation.
chatMemoryId() - Method in class dev.langchain4j.rag.query.Metadata
ChatMemoryStore - Interface in dev.langchain4j.store.memory.chat: Represents a store for the ChatMemory state.
ChatMessage - Interface in dev.langchain4j.data.message: A chat message.
ChatMessageDeserializer - Class in dev.langchain4j.data.message: A deserializer for ChatMessage objects.
ChatMessageJsonCodec - Interface in dev.langchain4j.data.message: A codec for serializing and deserializing ChatMessage objects to and from JSON.
ChatMessageJsonCodecFactory - Interface in dev.langchain4j.spi.data.message: A factory for creating ChatMessageJsonCodec objects.
ChatMessageSerializer - Class in dev.langchain4j.data.message
ChatMessageSerializer() - Constructor for class dev.langchain4j.data.message.ChatMessageSerializer
ChatMessageType - Enum in dev.langchain4j.data.message: The type of content, e.g.
classify(Document) - Method in interface dev.langchain4j.classification.TextClassifier: Classify the given Document.
classify(TextSegment) - Method in interface dev.langchain4j.classification.TextClassifier: Classify the given TextSegment.
classify(String) - Method in interface dev.langchain4j.classification.TextClassifier: Classify the given text.
clear() - Method in interface dev.langchain4j.memory.ChatMemory: Clears the chat memory.
CodeExecutionEngine - Interface in dev.langchain4j.code: Interface for executing code.
comparisonValue() - Method in class dev.langchain4j.store.embedding.filter.comparison.IsEqualTo
comparisonValue() - Method in class dev.langchain4j.store.embedding.filter.comparison.IsGreaterThan
comparisonValue() - Method in class dev.langchain4j.store.embedding.filter.comparison.IsGreaterThanOrEqualTo
comparisonValue() - Method in class dev.langchain4j.store.embedding.filter.comparison.IsLessThan
comparisonValue() - Method in class dev.langchain4j.store.embedding.filter.comparison.IsLessThanOrEqualTo
comparisonValue() - Method in class dev.langchain4j.store.embedding.filter.comparison.IsNotEqualTo
comparisonValues() - Method in class dev.langchain4j.store.embedding.filter.comparison.IsIn
comparisonValues() - Method in class dev.langchain4j.store.embedding.filter.comparison.IsNotIn
CompressingQueryTransformer - Class in dev.langchain4j.rag.query.transformer: A QueryTransformer that leverages a ChatLanguageModel to condense a given Query along with a chat memory (previous conversation history) into a concise Query.
CompressingQueryTransformer(ChatLanguageModel) - Constructor for class dev.langchain4j.rag.query.transformer.CompressingQueryTransformer
CompressingQueryTransformer(ChatLanguageModel, PromptTemplate) - Constructor for class dev.langchain4j.rag.query.transformer.CompressingQueryTransformer
containsKey(String) - Method in class dev.langchain4j.data.document.Metadata: Check whether this Metadata contains a given key.
content() - Method in class dev.langchain4j.model.output.Response: Get the content.
Content - Class in dev.langchain4j.rag.content: Represents content relevant to a user Query with the potential to enhance and ground the LLM's response.
Content - Interface in dev.langchain4j.data.message: Abstract base interface for message content.
Content(TextSegment) - Constructor for class dev.langchain4j.rag.content.Content
Content(String) - Constructor for class dev.langchain4j.rag.content.Content
CONTENT_FILTER - Enum constant in enum dev.langchain4j.model.output.FinishReason: The call finished signalling a need for content filtering.
ContentAggregator - Interface in dev.langchain4j.rag.content.aggregator: Aggregates all Contents retrieved from all ContentRetrievers using all Querys.
ContentInjector - Interface in dev.langchain4j.rag.content.injector: Injects given Contents into a given UserMessage.
contentRetriever(ContentRetriever) - Method in class dev.langchain4j.rag.DefaultRetrievalAugmentor.DefaultRetrievalAugmentorBuilder
ContentRetriever - Interface in dev.langchain4j.rag.content.retriever: Retrieves Contents from an underlying data source using a given Query.
contents() - Method in class dev.langchain4j.data.message.UserMessage: The contents of the message.
ContentType - Enum in dev.langchain4j.data.message: The type of content, e.g.
copy() - Method in class dev.langchain4j.data.document.Metadata: Copies the metadata.
copyIfNotNull(List<T>) - Static method in class dev.langchain4j.internal.Utils: Returns an (unmodifiable) copy of the provided list.
CosineSimilarity - Class in dev.langchain4j.store.embedding: Utility class for calculating cosine similarity between two vectors.
create() - Method in interface dev.langchain4j.spi.data.message.ChatMessageJsonCodecFactory: Creates a new ChatMessageJsonCodec object.
create() - Method in interface dev.langchain4j.spi.json.JsonCodecFactory: Create a new Json.JsonCodec.
create(PromptTemplateFactory.Input) - Method in interface dev.langchain4j.spi.prompt.PromptTemplateFactory: Create a new prompt template.
createPrompt(UserMessage, List<Content>) - Method in class dev.langchain4j.rag.content.injector.DefaultContentInjector
createPrompt(Query) - Method in class dev.langchain4j.rag.query.router.LanguageModelQueryRouter
createPrompt(Query) - Method in class dev.langchain4j.rag.query.transformer.ExpandingQueryTransformer
createPrompt(Query, String) - Method in class dev.langchain4j.rag.query.transformer.CompressingQueryTransformer

D

DEFAULT_FILTER - Static variable in class dev.langchain4j.rag.content.retriever.EmbeddingStoreContentRetriever
DEFAULT_MAX_RESULTS - Static variable in class dev.langchain4j.rag.content.retriever.EmbeddingStoreContentRetriever
DEFAULT_MIN_SCORE - Static variable in class dev.langchain4j.rag.content.retriever.EmbeddingStoreContentRetriever
DEFAULT_N - Static variable in class dev.langchain4j.rag.query.transformer.ExpandingQueryTransformer
DEFAULT_PROMPT_TEMPLATE - Static variable in class dev.langchain4j.rag.content.injector.DefaultContentInjector
DEFAULT_PROMPT_TEMPLATE - Static variable in class dev.langchain4j.rag.query.router.LanguageModelQueryRouter
DEFAULT_PROMPT_TEMPLATE - Static variable in class dev.langchain4j.rag.query.transformer.CompressingQueryTransformer
DEFAULT_PROMPT_TEMPLATE - Static variable in class dev.langchain4j.rag.query.transformer.ExpandingQueryTransformer
DEFAULT_QUERY_SELECTOR - Static variable in class dev.langchain4j.rag.content.aggregator.ReRankingContentAggregator
DEFAULT_RETRY_POLICY - Static variable in class dev.langchain4j.internal.RetryUtils: Default retry policy used by RetryUtils.withRetry(Callable).
DefaultContentAggregator - Class in dev.langchain4j.rag.content.aggregator: Default implementation of ContentAggregator intended to be suitable for the majority of use cases.
DefaultContentAggregator() - Constructor for class dev.langchain4j.rag.content.aggregator.DefaultContentAggregator
DefaultContentInjector - Class in dev.langchain4j.rag.content.injector: Default implementation of ContentInjector intended to be suitable for the majority of use cases.
DefaultContentInjector() - Constructor for class dev.langchain4j.rag.content.injector.DefaultContentInjector
DefaultContentInjector(PromptTemplate) - Constructor for class dev.langchain4j.rag.content.injector.DefaultContentInjector
DefaultContentInjector(PromptTemplate, List<String>) - Constructor for class dev.langchain4j.rag.content.injector.DefaultContentInjector
DefaultContentInjector(List<String>) - Constructor for class dev.langchain4j.rag.content.injector.DefaultContentInjector
DefaultQueryRouter - Class in dev.langchain4j.rag.query.router: Default implementation of QueryRouter intended to be suitable for the majority of use cases.
DefaultQueryRouter(ContentRetriever...) - Constructor for class dev.langchain4j.rag.query.router.DefaultQueryRouter
DefaultQueryRouter(Collection<ContentRetriever>) - Constructor for class dev.langchain4j.rag.query.router.DefaultQueryRouter
DefaultQueryTransformer - Class in dev.langchain4j.rag.query.transformer: Default implementation of QueryTransformer intended to be suitable for the majority of use cases.
DefaultQueryTransformer() - Constructor for class dev.langchain4j.rag.query.transformer.DefaultQueryTransformer
DefaultRetrievalAugmentor - Class in dev.langchain4j.rag: The default implementation of RetrievalAugmentor intended to be suitable for the majority of use cases.
DefaultRetrievalAugmentor(QueryTransformer, QueryRouter, ContentAggregator, ContentInjector, Executor) - Constructor for class dev.langchain4j.rag.DefaultRetrievalAugmentor
DefaultRetrievalAugmentor.DefaultRetrievalAugmentorBuilder - Class in dev.langchain4j.rag
DefaultRetrievalAugmentorBuilder() - Constructor for class dev.langchain4j.rag.DefaultRetrievalAugmentor.DefaultRetrievalAugmentorBuilder
DefaultStructuredPromptFactory - Class in dev.langchain4j.model.input.structured: Default implementation of StructuredPromptFactory.
DefaultStructuredPromptFactory() - Constructor for class dev.langchain4j.model.input.structured.DefaultStructuredPromptFactory: Create a default structured prompt factory.
delayMillis(int) - Method in class dev.langchain4j.internal.RetryUtils.RetryPolicy.Builder: Sets the base delay in milliseconds.
deleteMessages(Object) - Method in interface dev.langchain4j.store.memory.chat.ChatMemoryStore: Deletes all messages for a specified chat memory.
deleteMessages(Object) - Method in class dev.langchain4j.store.memory.chat.InMemoryChatMemoryStore
delimiter() - Element in annotation type dev.langchain4j.model.input.structured.StructuredPrompt: The delimiter to join the lines of the prompt template.
description() - Method in class dev.langchain4j.agent.tool.ToolSpecification: Returns the description of the tool.
description(String) - Static method in class dev.langchain4j.agent.tool.JsonSchemaProperty: Construct a property with key "description" and value.
description(String) - Method in class dev.langchain4j.agent.tool.ToolSpecification.Builder: Sets the description.
Description - Annotation Type in dev.langchain4j.model.output.structured: Annotation to attach a description to a class field.
detailLevel() - Method in class dev.langchain4j.data.message.ImageContent: Get the DetailLevel.
dev.langchain4j - package dev.langchain4j
dev.langchain4j.agent.tool - package dev.langchain4j.agent.tool
dev.langchain4j.chain - package dev.langchain4j.chain
dev.langchain4j.classification - package dev.langchain4j.classification
dev.langchain4j.code - package dev.langchain4j.code
dev.langchain4j.data.document - package dev.langchain4j.data.document
dev.langchain4j.data.embedding - package dev.langchain4j.data.embedding
dev.langchain4j.data.image - package dev.langchain4j.data.image
dev.langchain4j.data.message - package dev.langchain4j.data.message
dev.langchain4j.data.segment - package dev.langchain4j.data.segment
dev.langchain4j.internal - package dev.langchain4j.internal
dev.langchain4j.memory - package dev.langchain4j.memory
dev.langchain4j.model - package dev.langchain4j.model
dev.langchain4j.model.chat - package dev.langchain4j.model.chat
dev.langchain4j.model.embedding - package dev.langchain4j.model.embedding
dev.langchain4j.model.image - package dev.langchain4j.model.image
dev.langchain4j.model.input - package dev.langchain4j.model.input
dev.langchain4j.model.input.structured - package dev.langchain4j.model.input.structured
dev.langchain4j.model.language - package dev.langchain4j.model.language
dev.langchain4j.model.moderation - package dev.langchain4j.model.moderation
dev.langchain4j.model.output - package dev.langchain4j.model.output
dev.langchain4j.model.output.structured - package dev.langchain4j.model.output.structured
dev.langchain4j.model.scoring - package dev.langchain4j.model.scoring
dev.langchain4j.rag - package dev.langchain4j.rag
dev.langchain4j.rag.content - package dev.langchain4j.rag.content
dev.langchain4j.rag.content.aggregator - package dev.langchain4j.rag.content.aggregator
dev.langchain4j.rag.content.injector - package dev.langchain4j.rag.content.injector
dev.langchain4j.rag.content.retriever - package dev.langchain4j.rag.content.retriever
dev.langchain4j.rag.query - package dev.langchain4j.rag.query
dev.langchain4j.rag.query.router - package dev.langchain4j.rag.query.router
dev.langchain4j.rag.query.transformer - package dev.langchain4j.rag.query.transformer
dev.langchain4j.retriever - package dev.langchain4j.retriever
dev.langchain4j.spi - package dev.langchain4j.spi
dev.langchain4j.spi.data.message - package dev.langchain4j.spi.data.message
dev.langchain4j.spi.json - package dev.langchain4j.spi.json
dev.langchain4j.spi.prompt - package dev.langchain4j.spi.prompt
dev.langchain4j.spi.prompt.structured - package dev.langchain4j.spi.prompt.structured
dev.langchain4j.store.embedding - package dev.langchain4j.store.embedding
dev.langchain4j.store.embedding.filter - package dev.langchain4j.store.embedding.filter
dev.langchain4j.store.embedding.filter.comparison - package dev.langchain4j.store.embedding.filter.comparison
dev.langchain4j.store.embedding.filter.logical - package dev.langchain4j.store.embedding.filter.logical
dev.langchain4j.store.memory.chat - package dev.langchain4j.store.memory.chat
dimension() - Method in class dev.langchain4j.data.embedding.Embedding: Returns the dimension of the vector.
DisabledChatLanguageModel - Class in dev.langchain4j.model.chat: A ChatLanguageModel which throws a ModelDisabledException for all of its methods
DisabledChatLanguageModel() - Constructor for class dev.langchain4j.model.chat.DisabledChatLanguageModel
DisabledEmbeddingModel - Class in dev.langchain4j.model.embedding: An EmbeddingModel which throws a ModelDisabledException for all of its methods
DisabledEmbeddingModel() - Constructor for class dev.langchain4j.model.embedding.DisabledEmbeddingModel
DisabledImageModel - Class in dev.langchain4j.model.image: An ImageModel which throws a ModelDisabledException for all of its methods
DisabledImageModel() - Constructor for class dev.langchain4j.model.image.DisabledImageModel
DisabledLanguageModel - Class in dev.langchain4j.model.language: A LanguageModel which throws a ModelDisabledException for all of its methods
DisabledLanguageModel() - Constructor for class dev.langchain4j.model.language.DisabledLanguageModel
DisabledModerationModel - Class in dev.langchain4j.model.moderation: A ModerationModel which throws a ModelDisabledException for all of its methods
DisabledModerationModel() - Constructor for class dev.langchain4j.model.moderation.DisabledModerationModel
DisabledStreamingChatLanguageModel - Class in dev.langchain4j.model.chat: A StreamingChatLanguageModel which throws a ModelDisabledException for all of its methods
DisabledStreamingChatLanguageModel() - Constructor for class dev.langchain4j.model.chat.DisabledStreamingChatLanguageModel
DisabledStreamingLanguageModel - Class in dev.langchain4j.model.language: A StreamingLanguageModel which throws a ModelDisabledException for all of its methods
DisabledStreamingLanguageModel() - Constructor for class dev.langchain4j.model.language.DisabledStreamingLanguageModel
DO_NOT_ROUTE - Enum constant in enum dev.langchain4j.rag.query.router.LanguageModelQueryRouter.FallbackStrategy: In this case, the Query will not be routed to any ContentRetriever, thus skipping the RAG flow.
document(String) - Static method in class dev.langchain4j.data.document.Document: Creates a new Document from the given text.
document(String, Metadata) - Static method in class dev.langchain4j.data.document.Document: Creates a new Document from the given text.
Document - Class in dev.langchain4j.data.document: Represents an unstructured piece of text that usually corresponds to a content of a single file.
Document(String) - Constructor for class dev.langchain4j.data.document.Document: Creates a new Document from the given text.
Document(String, Metadata) - Constructor for class dev.langchain4j.data.document.Document: Creates a new Document from the given text.
DocumentLoader - Class in dev.langchain4j.data.document: Utility class for loading documents.
DocumentParser - Interface in dev.langchain4j.data.document: Defines the interface for parsing an InputStream into a Document.
DocumentSource - Interface in dev.langchain4j.data.document: Defines the interface for a Document source.
documentSplitter(DocumentSplitter) - Method in class dev.langchain4j.store.embedding.EmbeddingStoreIngestor.Builder: Sets the document splitter.
DocumentSplitter - Interface in dev.langchain4j.data.document: Defines the interface for splitting a document into text segments.
documentTransformer(DocumentTransformer) - Method in class dev.langchain4j.store.embedding.EmbeddingStoreIngestor.Builder: Sets the document transformer.
DocumentTransformer - Interface in dev.langchain4j.data.document: Defines the interface for transforming a Document.

E

edit(Image, Image, String) - Method in class dev.langchain4j.model.image.DisabledImageModel
edit(Image, Image, String) - Method in interface dev.langchain4j.model.image.ImageModel: Given an existing image, edit this image following the given prompt and apply the changes only to the part of the image specified by the given mask.
edit(Image, String) - Method in class dev.langchain4j.model.image.DisabledImageModel
edit(Image, String) - Method in interface dev.langchain4j.model.image.ImageModel: Given an existing image, edit this image following the given prompt.
embed(TextSegment) - Method in class dev.langchain4j.model.embedding.DisabledEmbeddingModel
embed(TextSegment) - Method in interface dev.langchain4j.model.embedding.EmbeddingModel: Embed the text content of a TextSegment.
embed(String) - Method in class dev.langchain4j.model.embedding.DisabledEmbeddingModel
embed(String) - Method in interface dev.langchain4j.model.embedding.EmbeddingModel: Embed a text.
embedAll(List<TextSegment>) - Method in class dev.langchain4j.model.embedding.DisabledEmbeddingModel
embedAll(List<TextSegment>) - Method in interface dev.langchain4j.model.embedding.EmbeddingModel: Embeds the text content of a list of TextSegments.
embedded() - Method in class dev.langchain4j.store.embedding.EmbeddingMatch: Returns the original content that was embedded.
embedding() - Method in class dev.langchain4j.store.embedding.EmbeddingMatch: Returns the embedding that has been matched.
Embedding - Class in dev.langchain4j.data.embedding: Represents a dense vector embedding of a text.
Embedding(float[]) - Constructor for class dev.langchain4j.data.embedding.Embedding: Creates a new Embedding.
embeddingId() - Method in class dev.langchain4j.store.embedding.EmbeddingMatch: The ID of the embedding assigned when adding this embedding to the store.
EmbeddingMatch<Embedded> - Class in dev.langchain4j.store.embedding: Represents a matched embedding along with its relevance score (derivative of cosine distance), ID, and original embedded content.
EmbeddingMatch(Double, String, Embedding, Embedded) - Constructor for class dev.langchain4j.store.embedding.EmbeddingMatch: Creates a new instance.
embeddingModel(EmbeddingModel) - Method in class dev.langchain4j.store.embedding.EmbeddingStoreIngestor.Builder: Sets the embedding model.
EmbeddingModel - Interface in dev.langchain4j.model.embedding: Represents a model that can convert a given text into an embedding (vector representation of the text).
EmbeddingSearchRequest - Class in dev.langchain4j.store.embedding: Represents a request to search in an EmbeddingStore.
EmbeddingSearchRequest(Embedding, Integer, Double, Filter) - Constructor for class dev.langchain4j.store.embedding.EmbeddingSearchRequest: Creates an instance of an EmbeddingSearchRequest.
EmbeddingSearchResult<Embedded> - Class in dev.langchain4j.store.embedding: Represents a result of a search in an EmbeddingStore.
EmbeddingSearchResult(List<EmbeddingMatch<Embedded>>) - Constructor for class dev.langchain4j.store.embedding.EmbeddingSearchResult
embeddingStore(EmbeddingStore<TextSegment>) - Method in class dev.langchain4j.store.embedding.EmbeddingStoreIngestor.Builder: Sets the embedding store.
EmbeddingStore<Embedded> - Interface in dev.langchain4j.store.embedding: Represents a store for embeddings, also known as a vector database.
EmbeddingStoreContentRetriever - Class in dev.langchain4j.rag.content.retriever: A ContentRetriever that retrieves from an EmbeddingStore.
EmbeddingStoreContentRetriever(EmbeddingStore<TextSegment>, EmbeddingModel) - Constructor for class dev.langchain4j.rag.content.retriever.EmbeddingStoreContentRetriever
EmbeddingStoreContentRetriever(EmbeddingStore<TextSegment>, EmbeddingModel, int) - Constructor for class dev.langchain4j.rag.content.retriever.EmbeddingStoreContentRetriever
EmbeddingStoreContentRetriever(EmbeddingStore<TextSegment>, EmbeddingModel, Integer, Double) - Constructor for class dev.langchain4j.rag.content.retriever.EmbeddingStoreContentRetriever
EmbeddingStoreContentRetriever.EmbeddingStoreContentRetrieverBuilder - Class in dev.langchain4j.rag.content.retriever
EmbeddingStoreContentRetrieverBuilder() - Constructor for class dev.langchain4j.rag.content.retriever.EmbeddingStoreContentRetriever.EmbeddingStoreContentRetrieverBuilder
EmbeddingStoreIngestor - Class in dev.langchain4j.store.embedding: EmbeddingStoreIngestor is responsible for the ingestion of documents into an embedding store.
EmbeddingStoreIngestor(DocumentTransformer, DocumentSplitter, TextSegmentTransformer, EmbeddingModel, EmbeddingStore<TextSegment>) - Constructor for class dev.langchain4j.store.embedding.EmbeddingStoreIngestor: Creates a new EmbeddingStoreIngestor.
EmbeddingStoreIngestor.Builder - Class in dev.langchain4j.store.embedding: EmbeddingStoreIngestor builder.
ensureBetween(Double, double, double, String) - Static method in class dev.langchain4j.internal.ValidationUtils: Ensures that the given Double value is in [min, max].
ensureBetween(Integer, int, int, String) - Static method in class dev.langchain4j.internal.ValidationUtils: Ensures that the given Integer value is in [min, max].
ensureBetween(Long, long, long, String) - Static method in class dev.langchain4j.internal.ValidationUtils: Ensures that the given Long value is in [min, max].
ensureEq(Object, Object, String, Object...) - Static method in class dev.langchain4j.internal.ValidationUtils: Ensure that the two values are equal.
ensureGreaterThanZero(Integer, String) - Static method in class dev.langchain4j.internal.ValidationUtils: Ensures that the given expression is true.
ensureNotBlank(String, String) - Static method in class dev.langchain4j.internal.ValidationUtils: Ensures that the given string is not null and not blank.
ensureNotEmpty(Map<K, V>, String) - Static method in class dev.langchain4j.internal.ValidationUtils: Ensures that the given map is not null and not empty.
ensureNotEmpty(T, String) - Static method in class dev.langchain4j.internal.ValidationUtils: Ensures that the given collection is not null and not empty.
ensureNotNull(T, String) - Static method in class dev.langchain4j.internal.ValidationUtils: Ensures that the given object is not null.
ensureNotNull(T, String, Object...) - Static method in class dev.langchain4j.internal.ValidationUtils: Ensures that the given object is not null.
ensureTrue(boolean, String) - Static method in class dev.langchain4j.internal.ValidationUtils: Ensures that the given expression is true.
enums(Class<?>) - Static method in class dev.langchain4j.agent.tool.JsonSchemaProperty: Construct a property with key "enum" and all enum values taken from enumClass.
enums(Object...) - Static method in class dev.langchain4j.agent.tool.JsonSchemaProperty: Construct a property with key "enum" and value enumValues.
enums(String...) - Static method in class dev.langchain4j.agent.tool.JsonSchemaProperty: Construct a property with key "enum" and value enumValues.
EPSILON - Static variable in class dev.langchain4j.store.embedding.CosineSimilarity: A small value to avoid division by zero.
equals(Object) - Method in class dev.langchain4j.agent.tool.JsonSchemaProperty
equals(Object) - Method in class dev.langchain4j.agent.tool.ToolExecutionRequest
equals(Object) - Method in class dev.langchain4j.agent.tool.ToolParameters
equals(Object) - Method in class dev.langchain4j.agent.tool.ToolSpecification
equals(Object) - Method in class dev.langchain4j.data.document.Document
equals(Object) - Method in class dev.langchain4j.data.document.Metadata
equals(Object) - Method in class dev.langchain4j.data.embedding.Embedding
equals(Object) - Method in class dev.langchain4j.data.image.Image
equals(Object) - Method in class dev.langchain4j.data.message.AiMessage
equals(Object) - Method in class dev.langchain4j.data.message.ImageContent
equals(Object) - Method in class dev.langchain4j.data.message.SystemMessage
equals(Object) - Method in class dev.langchain4j.data.message.TextContent
equals(Object) - Method in class dev.langchain4j.data.message.ToolExecutionResultMessage
equals(Object) - Method in class dev.langchain4j.data.message.UserMessage
equals(Object) - Method in class dev.langchain4j.data.segment.TextSegment
equals(Object) - Method in class dev.langchain4j.model.input.Prompt
equals(Object) - Method in class dev.langchain4j.model.moderation.Moderation
equals(Object) - Method in class dev.langchain4j.model.output.Response
equals(Object) - Method in class dev.langchain4j.model.output.TokenUsage
equals(Object) - Method in class dev.langchain4j.rag.content.Content
equals(Object) - Method in class dev.langchain4j.rag.query.Metadata
equals(Object) - Method in class dev.langchain4j.rag.query.Query
equals(Object) - Method in class dev.langchain4j.store.embedding.EmbeddingMatch
estimateTokenCount(UserMessage) - Method in interface dev.langchain4j.model.chat.TokenCountEstimator: Estimates the count of tokens in the specified message.
estimateTokenCount(TextSegment) - Method in interface dev.langchain4j.model.chat.TokenCountEstimator: Estimates the count of tokens in the specified text segment.
estimateTokenCount(TextSegment) - Method in interface dev.langchain4j.model.embedding.TokenCountEstimator: Estimates the count of tokens in the given text segment.
estimateTokenCount(TextSegment) - Method in interface dev.langchain4j.model.language.TokenCountEstimator: Estimates the count of tokens in the given text segment.
estimateTokenCount(Prompt) - Method in interface dev.langchain4j.model.chat.TokenCountEstimator: Estimates the count of tokens in the specified prompt.
estimateTokenCount(Prompt) - Method in interface dev.langchain4j.model.language.TokenCountEstimator: Estimates the count of tokens in the given prompt.
estimateTokenCount(String) - Method in interface dev.langchain4j.model.chat.TokenCountEstimator: Estimates the count of tokens in the specified text.
estimateTokenCount(String) - Method in interface dev.langchain4j.model.embedding.TokenCountEstimator: Estimates the count of tokens in the given text.
estimateTokenCount(String) - Method in interface dev.langchain4j.model.language.TokenCountEstimator: Estimates the count of tokens in the given text.
estimateTokenCount(List<ChatMessage>) - Method in interface dev.langchain4j.model.chat.TokenCountEstimator: Estimates the count of tokens in the specified list of messages.
estimateTokenCount(List<TextSegment>) - Method in interface dev.langchain4j.model.embedding.TokenCountEstimator: Estimates the count of tokens in the given text segments.
estimateTokenCountInForcefulToolExecutionRequest(ToolExecutionRequest) - Method in interface dev.langchain4j.model.Tokenizer: Estimates the count of tokens in the given tool execution request.
estimateTokenCountInForcefulToolSpecification(ToolSpecification) - Method in interface dev.langchain4j.model.Tokenizer: Estimates the count of tokens in the given tool specification.
estimateTokenCountInMessage(ChatMessage) - Method in interface dev.langchain4j.model.Tokenizer: Estimates the count of tokens in the given message.
estimateTokenCountInMessages(Iterable<ChatMessage>) - Method in interface dev.langchain4j.model.Tokenizer: Estimates the count of tokens in the given messages.
estimateTokenCountInText(String) - Method in interface dev.langchain4j.model.Tokenizer: Estimates the count of tokens in the given text.
estimateTokenCountInToolExecutionRequests(Iterable<ToolExecutionRequest>) - Method in interface dev.langchain4j.model.Tokenizer: Estimates the count of tokens in the given tool execution requests.
estimateTokenCountInTools(Iterable<Object>) - Method in interface dev.langchain4j.model.Tokenizer: Estimates the count of tokens in Tool annotations of the given objects.
estimateTokenCountInTools(Object) - Method in interface dev.langchain4j.model.Tokenizer: Estimates the count of tokens in Tool annotations of the given object.
estimateTokenCountInToolSpecifications(Iterable<ToolSpecification>) - Method in interface dev.langchain4j.model.Tokenizer: Estimates the count of tokens in the given tool specifications.
Exceptions - Class in dev.langchain4j.internal: Utility methods for creating common exceptions.
execute(Input) - Method in interface dev.langchain4j.chain.Chain: Execute the chain step.
execute(String) - Method in interface dev.langchain4j.code.CodeExecutionEngine: Execute the given code.
ExpandingQueryTransformer - Class in dev.langchain4j.rag.query.transformer: A QueryTransformer that utilizes a ChatLanguageModel to expand a given Query.
ExpandingQueryTransformer(ChatLanguageModel) - Constructor for class dev.langchain4j.rag.query.transformer.ExpandingQueryTransformer
ExpandingQueryTransformer(ChatLanguageModel, int) - Constructor for class dev.langchain4j.rag.query.transformer.ExpandingQueryTransformer
ExpandingQueryTransformer(ChatLanguageModel, PromptTemplate) - Constructor for class dev.langchain4j.rag.query.transformer.ExpandingQueryTransformer
ExpandingQueryTransformer(ChatLanguageModel, PromptTemplate, Integer) - Constructor for class dev.langchain4j.rag.query.transformer.ExpandingQueryTransformer
Experimental - Annotation Type in dev.langchain4j: Indicates that a class/constructor/method is experimental and might change in the future.
expression() - Method in class dev.langchain4j.store.embedding.filter.logical.Not

F

FAIL - Enum constant in enum dev.langchain4j.rag.query.router.LanguageModelQueryRouter.FallbackStrategy: In this case, an original exception will be re-thrown, and the RAG flow will fail.
fallback(Query, Exception) - Method in class dev.langchain4j.rag.query.router.LanguageModelQueryRouter
fallbackStrategy - Variable in class dev.langchain4j.rag.query.router.LanguageModelQueryRouter
FILE_NAME - Static variable in class dev.langchain4j.data.document.Document: Common metadata key for the name of the file from which the document was loaded.
filter() - Method in class dev.langchain4j.store.embedding.EmbeddingSearchRequest
filter(Filter) - Method in class dev.langchain4j.rag.content.retriever.EmbeddingStoreContentRetriever.EmbeddingStoreContentRetrieverBuilder
Filter - Interface in dev.langchain4j.store.embedding.filter: This class represents a filter that can be applied during search in an EmbeddingStore.
FilterParser - Interface in dev.langchain4j.store.embedding.filter: Parses a filter expression string into a Filter object.
findRelevant(Embedding, int) - Method in interface dev.langchain4j.store.embedding.EmbeddingStore: Finds the most relevant (closest in space) embeddings to the provided reference embedding.
findRelevant(Embedding, int, double) - Method in interface dev.langchain4j.store.embedding.EmbeddingStore: Finds the most relevant (closest in space) embeddings to the provided reference embedding.
findRelevant(Object, Embedding, int) - Method in interface dev.langchain4j.store.embedding.EmbeddingStore: Finds the most relevant (closest in space) embeddings to the provided reference embedding.
findRelevant(Object, Embedding, int, double) - Method in interface dev.langchain4j.store.embedding.EmbeddingStore: Finds the most relevant (closest in space) embeddings to the provided reference embedding.
findRelevant(Object, String) - Method in interface dev.langchain4j.retriever.Retriever: Deprecated.

Find relevant items for the given text and memoryId.
findRelevant(String) - Method in interface dev.langchain4j.retriever.Retriever: Deprecated.

Find relevant items for the given text.
finishReason() - Method in class dev.langchain4j.model.output.Response: Get the finish reason.
FinishReason - Enum in dev.langchain4j.model.output: The reason why a model call finished.
firstChars(String, int) - Static method in class dev.langchain4j.internal.Utils: Returns the first numberOfChars characters of the given string.
flagged() - Method in class dev.langchain4j.model.moderation.Moderation: Returns true if the text was flagged.
flagged(String) - Static method in class dev.langchain4j.model.moderation.Moderation: Constructs a Moderation object that is flagged.
flaggedText() - Method in class dev.langchain4j.model.moderation.Moderation: Returns the text that was flagged.
format(Metadata) - Method in class dev.langchain4j.rag.content.injector.DefaultContentInjector
format(ChatMessage) - Method in class dev.langchain4j.rag.query.transformer.CompressingQueryTransformer
format(Content) - Method in class dev.langchain4j.rag.content.injector.DefaultContentInjector
format(String, String) - Method in class dev.langchain4j.rag.content.injector.DefaultContentInjector
format(List<ChatMessage>) - Method in class dev.langchain4j.rag.query.transformer.CompressingQueryTransformer
format(List<Content>) - Method in class dev.langchain4j.rag.content.injector.DefaultContentInjector
formatInstructions() - Method in interface dev.langchain4j.model.output.OutputParser: Description of the text format.
from(float[]) - Static method in class dev.langchain4j.data.embedding.Embedding: Creates a new Embedding from the given vector.
from(ToolExecutionRequest...) - Static method in class dev.langchain4j.data.message.AiMessage: Create a new AiMessage with the given tool execution requests.
from(ToolExecutionRequest, String) - Static method in class dev.langchain4j.data.message.ToolExecutionResultMessage: Creates a ToolExecutionResultMessage from a ToolExecutionRequest and the result of the tool execution.
from(Image) - Static method in class dev.langchain4j.data.message.ImageContent: Create a new ImageContent from the given image.
from(Image, ImageContent.DetailLevel) - Static method in class dev.langchain4j.data.message.ImageContent: Create a new ImageContent from the given image.
from(Content...) - Static method in class dev.langchain4j.data.message.UserMessage: Create a UserMessage from contents.
from(UserMessage, Object, List<ChatMessage>) - Static method in class dev.langchain4j.rag.query.Metadata
from(TextSegment) - Static method in class dev.langchain4j.rag.content.Content
from(String) - Static method in class dev.langchain4j.data.document.Document: Creates a new Document from the given text.
from(String) - Static method in class dev.langchain4j.data.message.AiMessage: Create a new AiMessage with the given text.
from(String) - Static method in class dev.langchain4j.data.message.ImageContent: Create a new ImageContent from the given url.
from(String) - Static method in class dev.langchain4j.data.message.SystemMessage: Creates a new system message.
from(String) - Static method in class dev.langchain4j.data.message.TextContent: Creates a new text content.
from(String) - Static method in class dev.langchain4j.data.message.UserMessage: Create a UserMessage from a text.
from(String) - Static method in class dev.langchain4j.data.segment.TextSegment: Creates a new text segment.
from(String) - Static method in class dev.langchain4j.model.input.Prompt: Create a new Prompt.
from(String) - Static method in class dev.langchain4j.model.input.PromptTemplate: Create a new PromptTemplate.
from(String) - Static method in class dev.langchain4j.rag.content.Content
from(String) - Static method in class dev.langchain4j.rag.query.Query
from(String, Metadata) - Static method in class dev.langchain4j.data.document.Document: Creates a new Document from the given text.
from(String, Metadata) - Static method in class dev.langchain4j.data.segment.TextSegment: Creates a new text segment.
from(String, Content...) - Static method in class dev.langchain4j.data.message.UserMessage: Create a UserMessage from a name and contents.
from(String, ImageContent.DetailLevel) - Static method in class dev.langchain4j.data.message.ImageContent: Create a new ImageContent from the given url and detail level.
from(String, Metadata) - Static method in class dev.langchain4j.rag.query.Query
from(String, Object) - Static method in class dev.langchain4j.agent.tool.JsonSchemaProperty: Construct a property with key and value.
from(String, Object) - Static method in class dev.langchain4j.data.document.Metadata: Deprecated.
Use Metadata.from(String, String) instead
from(String, String) - Static method in class dev.langchain4j.data.document.Metadata: Constructs a Metadata object from a single key-value pair.
from(String, String) - Static method in class dev.langchain4j.data.message.ImageContent: Create a new ImageContent from the given base64 data and mime type.
from(String, String) - Static method in class dev.langchain4j.data.message.UserMessage: Create a UserMessage from a name and a text.
from(String, String, ImageContent.DetailLevel) - Static method in class dev.langchain4j.data.message.ImageContent: Create a new ImageContent from the given base64 data and mime type.
from(String, String, String) - Static method in class dev.langchain4j.data.message.ToolExecutionResultMessage: Creates a ToolExecutionResultMessage from a ToolExecutionRequest and the result of the tool execution.
from(String, List<Content>) - Static method in class dev.langchain4j.data.message.UserMessage: Create a UserMessage from a name and contents.
from(URI) - Static method in class dev.langchain4j.data.message.ImageContent: Create a new ImageContent from the given url.
from(URI, ImageContent.DetailLevel) - Static method in class dev.langchain4j.data.message.ImageContent: Create a new ImageContent from the given url and detail level.
from(List<ToolExecutionRequest>) - Static method in class dev.langchain4j.data.message.AiMessage: Create a new AiMessage with the given tool execution requests.
from(List<Content>) - Static method in class dev.langchain4j.data.message.UserMessage: Create a UserMessage from contents.
from(List<Float>) - Static method in class dev.langchain4j.data.embedding.Embedding: Creates a new Embedding from the given vector.
from(Map<String, ?>) - Static method in class dev.langchain4j.data.document.Metadata: Constructs a Metadata object from a map of key-value pairs.
from(T) - Static method in class dev.langchain4j.model.output.Response: Create a new Response.
from(T, TokenUsage) - Static method in class dev.langchain4j.model.output.Response: Create a new Response.
from(T, TokenUsage, FinishReason) - Static method in class dev.langchain4j.model.output.Response: Create a new Response.
fromCosineSimilarity(double) - Static method in class dev.langchain4j.store.embedding.RelevanceScore: Converts cosine similarity into relevance score.
fromJson(String, Class<T>) - Static method in class dev.langchain4j.internal.Json: Convert the given JSON string to an object of the given type.
fromJson(String, Class<T>) - Method in interface dev.langchain4j.internal.Json.JsonCodec: Convert the given JSON string to an object of the given type.
fromRelevanceScore(double) - Static method in class dev.langchain4j.store.embedding.CosineSimilarity: Converts relevance score into cosine similarity.
fuse(Collection<List<Content>>) - Static method in class dev.langchain4j.rag.content.aggregator.ReciprocalRankFuser: Fuses multiple List<Content> into a single List<Content> using the Reciprocal Rank Fusion (RRF) algorithm with k=60.
fuse(Collection<List<Content>>, int) - Static method in class dev.langchain4j.rag.content.aggregator.ReciprocalRankFuser: Fuses multiple List<Content> into a single List<Content> using the Reciprocal Rank Fusion (RRF) algorithm.
fuse(Map<Query, Collection<List<Content>>>) - Method in class dev.langchain4j.rag.content.aggregator.DefaultContentAggregator
fuse(Map<Query, Collection<List<Content>>>) - Method in class dev.langchain4j.rag.content.aggregator.ReRankingContentAggregator

G

generate(ChatMessage...) - Method in interface dev.langchain4j.model.chat.ChatLanguageModel: Generates a response from the model based on a sequence of messages.
generate(ChatMessage...) - Method in class dev.langchain4j.model.chat.DisabledChatLanguageModel
generate(Prompt) - Method in class dev.langchain4j.model.language.DisabledLanguageModel
generate(Prompt) - Method in interface dev.langchain4j.model.language.LanguageModel: Generate a response to the given prompt.
generate(Prompt, StreamingResponseHandler<String>) - Method in class dev.langchain4j.model.language.DisabledStreamingLanguageModel
generate(Prompt, StreamingResponseHandler<String>) - Method in interface dev.langchain4j.model.language.StreamingLanguageModel: Generates a response from the model based on a prompt.
generate(String) - Method in interface dev.langchain4j.model.chat.ChatLanguageModel: Generates a response from the model based on a message from a user.
generate(String) - Method in class dev.langchain4j.model.chat.DisabledChatLanguageModel
generate(String) - Method in class dev.langchain4j.model.image.DisabledImageModel
generate(String) - Method in interface dev.langchain4j.model.image.ImageModel: Given a prompt, generate an image.
generate(String) - Method in class dev.langchain4j.model.language.DisabledLanguageModel
generate(String) - Method in interface dev.langchain4j.model.language.LanguageModel: Generate a response to the given prompt.
generate(String, int) - Method in class dev.langchain4j.model.image.DisabledImageModel
generate(String, int) - Method in interface dev.langchain4j.model.image.ImageModel: Given a prompt, generate n images.
generate(String, StreamingResponseHandler<AiMessage>) - Method in class dev.langchain4j.model.chat.DisabledStreamingChatLanguageModel
generate(String, StreamingResponseHandler<AiMessage>) - Method in interface dev.langchain4j.model.chat.StreamingChatLanguageModel: Generates a response from the model based on a message from a user.
generate(String, StreamingResponseHandler<String>) - Method in class dev.langchain4j.model.language.DisabledStreamingLanguageModel
generate(String, StreamingResponseHandler<String>) - Method in interface dev.langchain4j.model.language.StreamingLanguageModel: Generates a response from the model based on a prompt.
generate(List<ChatMessage>) - Method in interface dev.langchain4j.model.chat.ChatLanguageModel: Generates a response from the model based on a sequence of messages.
generate(List<ChatMessage>) - Method in class dev.langchain4j.model.chat.DisabledChatLanguageModel
generate(List<ChatMessage>, ToolSpecification) - Method in interface dev.langchain4j.model.chat.ChatLanguageModel: Generates a response from the model based on a list of messages and a single tool specification.
generate(List<ChatMessage>, ToolSpecification) - Method in class dev.langchain4j.model.chat.DisabledChatLanguageModel
generate(List<ChatMessage>, ToolSpecification, StreamingResponseHandler<AiMessage>) - Method in class dev.langchain4j.model.chat.DisabledStreamingChatLanguageModel
generate(List<ChatMessage>, ToolSpecification, StreamingResponseHandler<AiMessage>) - Method in interface dev.langchain4j.model.chat.StreamingChatLanguageModel: Generates a response from the model based on a list of messages and a tool specification.
generate(List<ChatMessage>, StreamingResponseHandler<AiMessage>) - Method in class dev.langchain4j.model.chat.DisabledStreamingChatLanguageModel
generate(List<ChatMessage>, StreamingResponseHandler<AiMessage>) - Method in interface dev.langchain4j.model.chat.StreamingChatLanguageModel: Generates a response from the model based on a sequence of messages.
generate(List<ChatMessage>, List<ToolSpecification>) - Method in interface dev.langchain4j.model.chat.ChatLanguageModel: Generates a response from the model based on a list of messages and a list of tool specifications.
generate(List<ChatMessage>, List<ToolSpecification>) - Method in class dev.langchain4j.model.chat.DisabledChatLanguageModel
generate(List<ChatMessage>, List<ToolSpecification>, StreamingResponseHandler<AiMessage>) - Method in class dev.langchain4j.model.chat.DisabledStreamingChatLanguageModel
generate(List<ChatMessage>, List<ToolSpecification>, StreamingResponseHandler<AiMessage>) - Method in interface dev.langchain4j.model.chat.StreamingChatLanguageModel: Generates a response from the model based on a list of messages and a list of tool specifications.
generateUUIDFrom(String) - Static method in class dev.langchain4j.internal.Utils: Generates a UUID from a hash of the given input string.
get(String) - Method in class dev.langchain4j.data.document.Metadata: Returns the value associated with the given key.
getContentClass() - Method in enum dev.langchain4j.data.message.ContentType: Returns the class of the content type.
getDouble(String) - Method in class dev.langchain4j.data.document.Metadata: Returns the Double value associated with the given key.
getFloat(String) - Method in class dev.langchain4j.data.document.Metadata: Returns the Float value associated with the given key.
getInteger(String) - Method in class dev.langchain4j.data.document.Metadata: Returns the Integer value associated with the given key.
getLong(String) - Method in class dev.langchain4j.data.document.Metadata: Returns the Long value associated with the given key.
getMessages(Object) - Method in interface dev.langchain4j.store.memory.chat.ChatMemoryStore: Retrieves messages for a specified chat memory.
getMessages(Object) - Method in class dev.langchain4j.store.memory.chat.InMemoryChatMemoryStore
getName() - Method in interface dev.langchain4j.spi.prompt.PromptTemplateFactory.Input: Get the name of the template.
getOrDefault(T, Supplier<T>) - Static method in class dev.langchain4j.internal.Utils: Returns the given value if it is not null, otherwise returns the value returned by the given supplier.
getOrDefault(T, T) - Static method in class dev.langchain4j.internal.Utils: Returns the given value if it is not null, otherwise returns the given default value.
getString(String) - Method in class dev.langchain4j.data.document.Metadata: Returns the String value associated with the given key.
getTemplate() - Method in interface dev.langchain4j.spi.prompt.PromptTemplateFactory.Input: Get the template string.
GSON - Static variable in class dev.langchain4j.agent.tool.ToolExecutionRequestUtil: Gson instance.
GsonChatMessageJsonCodec - Class in dev.langchain4j.data.message: A codec for serializing and deserializing ChatMessage objects to and from JSON.
GsonChatMessageJsonCodec() - Constructor for class dev.langchain4j.data.message.GsonChatMessageJsonCodec: Constructs a new GsonChatMessageJsonCodec.

H

hashCode() - Method in class dev.langchain4j.agent.tool.JsonSchemaProperty
hashCode() - Method in class dev.langchain4j.agent.tool.ToolExecutionRequest
hashCode() - Method in class dev.langchain4j.agent.tool.ToolParameters
hashCode() - Method in class dev.langchain4j.agent.tool.ToolSpecification
hashCode() - Method in class dev.langchain4j.data.document.Document
hashCode() - Method in class dev.langchain4j.data.document.Metadata
hashCode() - Method in class dev.langchain4j.data.embedding.Embedding
hashCode() - Method in class dev.langchain4j.data.image.Image
hashCode() - Method in class dev.langchain4j.data.message.AiMessage
hashCode() - Method in class dev.langchain4j.data.message.ImageContent
hashCode() - Method in class dev.langchain4j.data.message.SystemMessage
hashCode() - Method in class dev.langchain4j.data.message.TextContent
hashCode() - Method in class dev.langchain4j.data.message.ToolExecutionResultMessage
hashCode() - Method in class dev.langchain4j.data.message.UserMessage
hashCode() - Method in class dev.langchain4j.data.segment.TextSegment
hashCode() - Method in class dev.langchain4j.model.input.Prompt
hashCode() - Method in class dev.langchain4j.model.moderation.Moderation
hashCode() - Method in class dev.langchain4j.model.output.Response
hashCode() - Method in class dev.langchain4j.model.output.TokenUsage
hashCode() - Method in class dev.langchain4j.rag.content.Content
hashCode() - Method in class dev.langchain4j.rag.query.Metadata
hashCode() - Method in class dev.langchain4j.rag.query.Query
hashCode() - Method in class dev.langchain4j.store.embedding.EmbeddingMatch
hasSingleText() - Method in class dev.langchain4j.data.message.UserMessage: Whether this message contains a single TextContent.
hasToolExecutionRequests() - Method in class dev.langchain4j.data.message.AiMessage: Check if the message has ToolExecutionRequests.
HIGH - Enum constant in enum dev.langchain4j.data.message.ImageContent.DetailLevel: High detail.

I

id() - Method in class dev.langchain4j.agent.tool.ToolExecutionRequest: Returns the id of the tool.
id() - Method in class dev.langchain4j.data.message.ToolExecutionResultMessage: Returns the id of the tool.
id() - Method in interface dev.langchain4j.memory.ChatMemory: The ID of the ChatMemory.
id(String) - Method in class dev.langchain4j.agent.tool.ToolExecutionRequest.Builder: Sets the id.
idToRetriever - Variable in class dev.langchain4j.rag.query.router.LanguageModelQueryRouter
illegalArgument(String, Object...) - Static method in class dev.langchain4j.internal.Exceptions: Constructs an IllegalArgumentException with the given formatted result.
image() - Method in class dev.langchain4j.data.message.ImageContent: Get the Image.
Image - Class in dev.langchain4j.data.image: Represents an image as a URL or as a Base64-encoded string.
IMAGE - Enum constant in enum dev.langchain4j.data.message.ContentType: Image content.
Image.Builder - Class in dev.langchain4j.data.image: Builder for Image.
ImageContent - Class in dev.langchain4j.data.message: Represents an image with a DetailLevel.
ImageContent(Image) - Constructor for class dev.langchain4j.data.message.ImageContent: Create a new ImageContent from the given image.
ImageContent(Image, ImageContent.DetailLevel) - Constructor for class dev.langchain4j.data.message.ImageContent: Create a new ImageContent from the given image.
ImageContent(String) - Constructor for class dev.langchain4j.data.message.ImageContent: Create a new ImageContent from the given url.
ImageContent(String, ImageContent.DetailLevel) - Constructor for class dev.langchain4j.data.message.ImageContent: Create a new ImageContent from the given url and detail level.
ImageContent(String, String) - Constructor for class dev.langchain4j.data.message.ImageContent: Create a new ImageContent from the given base64 data and mime type.
ImageContent(String, String, ImageContent.DetailLevel) - Constructor for class dev.langchain4j.data.message.ImageContent: Create a new ImageContent from the given base64 data and mime type.
ImageContent(URI) - Constructor for class dev.langchain4j.data.message.ImageContent: Create a new ImageContent from the given url.
ImageContent(URI, ImageContent.DetailLevel) - Constructor for class dev.langchain4j.data.message.ImageContent: Create a new ImageContent from the given url and detail level.
ImageContent.DetailLevel - Enum in dev.langchain4j.data.message: The detail level of an Image.
ImageModel - Interface in dev.langchain4j.model.image: Text to Image generator model.
ingest(Document) - Method in class dev.langchain4j.store.embedding.EmbeddingStoreIngestor: Ingests a single document.
ingest(Document...) - Method in class dev.langchain4j.store.embedding.EmbeddingStoreIngestor: Ingests multiple documents.
ingest(List<Document>) - Method in class dev.langchain4j.store.embedding.EmbeddingStoreIngestor: Ingests multiple documents.
inject(List<Content>, UserMessage) - Method in interface dev.langchain4j.rag.content.injector.ContentInjector: Injects given Contents into a given UserMessage.
inject(List<Content>, UserMessage) - Method in class dev.langchain4j.rag.content.injector.DefaultContentInjector
InMemoryChatMemoryStore - Class in dev.langchain4j.store.memory.chat: Implementation of ChatMemoryStore that stores state of ChatMemory (chat messages) in-memory.
InMemoryChatMemoryStore() - Constructor for class dev.langchain4j.store.memory.chat.InMemoryChatMemoryStore: Constructs a new InMemoryChatMemoryStore.
inputStream() - Method in interface dev.langchain4j.data.document.DocumentSource: Provides an InputStream to read the content of the document.
inputTokenCount() - Method in class dev.langchain4j.model.output.TokenUsage: Returns the input token count, or null if unknown.
INTEGER - Static variable in class dev.langchain4j.agent.tool.JsonSchemaProperty: A property with key "type" and value "integer".
isBetween(double, double) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isBetween(float, float) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isBetween(int, int) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isBetween(long, long) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isBetween(String, String) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isCollectionEmpty(Collection<?>) - Static method in class dev.langchain4j.internal.Utils: Deprecated.
Use Utils.isNullOrEmpty(Collection) instead.
isEqualTo(double) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isEqualTo(float) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isEqualTo(int) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isEqualTo(long) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isEqualTo(String) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
IsEqualTo - Class in dev.langchain4j.store.embedding.filter.comparison
IsEqualTo(String, Object) - Constructor for class dev.langchain4j.store.embedding.filter.comparison.IsEqualTo
isGreaterThan(double) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isGreaterThan(float) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isGreaterThan(int) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isGreaterThan(long) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isGreaterThan(String) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
IsGreaterThan - Class in dev.langchain4j.store.embedding.filter.comparison
IsGreaterThan(String, Comparable<?>) - Constructor for class dev.langchain4j.store.embedding.filter.comparison.IsGreaterThan
isGreaterThanOrEqualTo(double) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isGreaterThanOrEqualTo(float) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isGreaterThanOrEqualTo(int) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isGreaterThanOrEqualTo(long) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isGreaterThanOrEqualTo(String) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
IsGreaterThanOrEqualTo - Class in dev.langchain4j.store.embedding.filter.comparison
IsGreaterThanOrEqualTo(String, Comparable<?>) - Constructor for class dev.langchain4j.store.embedding.filter.comparison.IsGreaterThanOrEqualTo
isIn(double...) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isIn(float...) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isIn(int...) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isIn(long...) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isIn(String...) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isIn(Collection<?>) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
IsIn - Class in dev.langchain4j.store.embedding.filter.comparison
IsIn(String, Collection<?>) - Constructor for class dev.langchain4j.store.embedding.filter.comparison.IsIn
isLessThan(double) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isLessThan(float) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isLessThan(int) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isLessThan(long) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isLessThan(String) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
IsLessThan - Class in dev.langchain4j.store.embedding.filter.comparison
IsLessThan(String, Comparable<?>) - Constructor for class dev.langchain4j.store.embedding.filter.comparison.IsLessThan
isLessThanOrEqualTo(double) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isLessThanOrEqualTo(float) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isLessThanOrEqualTo(int) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isLessThanOrEqualTo(long) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isLessThanOrEqualTo(String) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
IsLessThanOrEqualTo - Class in dev.langchain4j.store.embedding.filter.comparison
IsLessThanOrEqualTo(String, Comparable<?>) - Constructor for class dev.langchain4j.store.embedding.filter.comparison.IsLessThanOrEqualTo
isNotEqualTo(double) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isNotEqualTo(float) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isNotEqualTo(int) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isNotEqualTo(long) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isNotEqualTo(String) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
IsNotEqualTo - Class in dev.langchain4j.store.embedding.filter.comparison
IsNotEqualTo(String, Object) - Constructor for class dev.langchain4j.store.embedding.filter.comparison.IsNotEqualTo
isNotIn(double...) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isNotIn(float...) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isNotIn(int...) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isNotIn(long...) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isNotIn(String...) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
isNotIn(Collection<?>) - Method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
IsNotIn - Class in dev.langchain4j.store.embedding.filter.comparison
IsNotIn(String, Collection<?>) - Constructor for class dev.langchain4j.store.embedding.filter.comparison.IsNotIn
isNotNullOrBlank(String) - Static method in class dev.langchain4j.internal.Utils: Is the given string not null and not blank?
isNullOrBlank(String) - Static method in class dev.langchain4j.internal.Utils: Is the given string null or blank?
isNullOrEmpty(Collection<?>) - Static method in class dev.langchain4j.internal.Utils: Is the collection null or empty?
items(JsonSchemaProperty) - Static method in class dev.langchain4j.agent.tool.JsonSchemaProperty: Wraps the given type in a property with key "items".

J

JacocoIgnoreCoverageGenerated - Annotation Type in dev.langchain4j.internal: Annotation to mark methods where JaCoCo coverage should be ignored.
jitterDelayMillis(int) - Method in class dev.langchain4j.internal.RetryUtils.RetryPolicy: This method returns the jitter delay in milliseconds for a given attempt.
jitterScale(double) - Method in class dev.langchain4j.internal.RetryUtils.RetryPolicy.Builder: Sets the jitter scale.
join(StructuredPrompt) - Static method in class dev.langchain4j.model.input.structured.StructuredPrompt.Util: Joins the lines of the prompt template.
Json - Class in dev.langchain4j.internal: A utility class for JSON.
Json.JsonCodec - Interface in dev.langchain4j.internal: The abstract JSON codec interface.
JsonCodecFactory - Interface in dev.langchain4j.spi.json: A factory for creating Json.JsonCodec instances through SPI.
JsonSchemaProperty - Class in dev.langchain4j.agent.tool: Represents a property in a JSON schema.
JsonSchemaProperty(String, Object) - Constructor for class dev.langchain4j.agent.tool.JsonSchemaProperty: Construct a property with key and value.

K

key() - Method in class dev.langchain4j.agent.tool.JsonSchemaProperty: Get the key.
key() - Method in class dev.langchain4j.store.embedding.filter.comparison.IsEqualTo
key() - Method in class dev.langchain4j.store.embedding.filter.comparison.IsGreaterThan
key() - Method in class dev.langchain4j.store.embedding.filter.comparison.IsGreaterThanOrEqualTo
key() - Method in class dev.langchain4j.store.embedding.filter.comparison.IsIn
key() - Method in class dev.langchain4j.store.embedding.filter.comparison.IsLessThan
key() - Method in class dev.langchain4j.store.embedding.filter.comparison.IsLessThanOrEqualTo
key() - Method in class dev.langchain4j.store.embedding.filter.comparison.IsNotEqualTo
key() - Method in class dev.langchain4j.store.embedding.filter.comparison.IsNotIn

L

LanguageModel - Interface in dev.langchain4j.model.language: Represents a language model that has a simple text interface (as opposed to a chat interface).
LanguageModelQueryRouter - Class in dev.langchain4j.rag.query.router: A QueryRouter that utilizes a ChatLanguageModel to make a routing decision.
LanguageModelQueryRouter(ChatLanguageModel, Map<ContentRetriever, String>) - Constructor for class dev.langchain4j.rag.query.router.LanguageModelQueryRouter
LanguageModelQueryRouter(ChatLanguageModel, Map<ContentRetriever, String>, PromptTemplate, LanguageModelQueryRouter.FallbackStrategy) - Constructor for class dev.langchain4j.rag.query.router.LanguageModelQueryRouter
LanguageModelQueryRouter.FallbackStrategy - Enum in dev.langchain4j.rag.query.router: Strategy applied if the call to the LLM fails of if LLM does not return a valid response.
left() - Method in class dev.langchain4j.store.embedding.filter.logical.And
left() - Method in class dev.langchain4j.store.embedding.filter.logical.Or
LENGTH - Enum constant in enum dev.langchain4j.model.output.FinishReason: The call finished because the token length was reached.
load(DocumentSource, DocumentParser) - Static method in class dev.langchain4j.data.document.DocumentLoader: Loads a document from the given source using the given parser.
loadFactories(Class<T>) - Static method in class dev.langchain4j.spi.ServiceHelper: Load all the services of a given type.
loadFactories(Class<T>, ClassLoader) - Static method in class dev.langchain4j.spi.ServiceHelper: Load all the services of a given type.
LOW - Enum constant in enum dev.langchain4j.data.message.ImageContent.DetailLevel: Low detail.

M

MAP_TYPE - Static variable in class dev.langchain4j.agent.tool.ToolExecutionRequestUtil: Utility TypeToken describing Map<String, Object>.
matches() - Method in class dev.langchain4j.store.embedding.EmbeddingSearchResult
maxAttempts(int) - Method in class dev.langchain4j.internal.RetryUtils.RetryPolicy.Builder: Sets the default maximum number of attempts.
maxResults() - Method in class dev.langchain4j.store.embedding.EmbeddingSearchRequest
maxResults(Integer) - Method in class dev.langchain4j.rag.content.retriever.EmbeddingStoreContentRetriever.EmbeddingStoreContentRetrieverBuilder
messageClass() - Method in enum dev.langchain4j.data.message.ChatMessageType: Returns the class of the message type.
messageFromJson(String) - Static method in class dev.langchain4j.data.message.ChatMessageDeserializer: Deserializes a JSON string into a ChatMessage.
messageFromJson(String) - Method in interface dev.langchain4j.data.message.ChatMessageJsonCodec: Deserializes a JSON string to a ChatMessage object.
messageFromJson(String) - Method in class dev.langchain4j.data.message.GsonChatMessageJsonCodec
messages() - Method in interface dev.langchain4j.memory.ChatMemory: Retrieves messages from the chat memory.
messagesFromJson(String) - Static method in class dev.langchain4j.data.message.ChatMessageDeserializer: Deserializes a JSON string into a list of ChatMessage.
messagesFromJson(String) - Method in interface dev.langchain4j.data.message.ChatMessageJsonCodec: Deserializes a JSON string to a list of ChatMessage objects.
messagesFromJson(String) - Method in class dev.langchain4j.data.message.GsonChatMessageJsonCodec
messagesToJson(List<ChatMessage>) - Method in interface dev.langchain4j.data.message.ChatMessageJsonCodec: Serializes a list of ChatMessage objects to a JSON string.
messagesToJson(List<ChatMessage>) - Static method in class dev.langchain4j.data.message.ChatMessageSerializer: Serializes a list of chat messages into a JSON string.
messagesToJson(List<ChatMessage>) - Method in class dev.langchain4j.data.message.GsonChatMessageJsonCodec
messageToJson(ChatMessage) - Method in interface dev.langchain4j.data.message.ChatMessageJsonCodec: Serializes a ChatMessage object to a JSON string.
messageToJson(ChatMessage) - Static method in class dev.langchain4j.data.message.ChatMessageSerializer: Serializes a chat message into a JSON string.
messageToJson(ChatMessage) - Method in class dev.langchain4j.data.message.GsonChatMessageJsonCodec
metadata() - Method in class dev.langchain4j.data.document.Document: Returns the metadata associated with this document.
metadata() - Method in interface dev.langchain4j.data.document.DocumentSource: Returns the metadata associated with the source of the document.
metadata() - Method in class dev.langchain4j.data.segment.TextSegment: Returns the metadata.
metadata() - Method in class dev.langchain4j.rag.query.Query
metadata(String) - Method in class dev.langchain4j.data.document.Document: Looks up the metadata value for the given key.
metadata(String) - Method in class dev.langchain4j.data.segment.TextSegment: Returns the metadata value for the given key.
metadata(String, Object) - Static method in class dev.langchain4j.data.document.Metadata: Deprecated.
Use Metadata.metadata(String, String) instead
metadata(String, String) - Static method in class dev.langchain4j.data.document.Metadata: Constructs a Metadata object from a single key-value pair.
Metadata - Class in dev.langchain4j.data.document: Represents metadata of a Document or a TextSegment.
Metadata - Class in dev.langchain4j.rag.query: Represents metadata that may be useful or necessary for retrieval or augmentation purposes.
Metadata() - Constructor for class dev.langchain4j.data.document.Metadata: Construct a Metadata object with an empty map of key-value pairs.
Metadata(UserMessage, Object, List<ChatMessage>) - Constructor for class dev.langchain4j.rag.query.Metadata
Metadata(Map<String, ?>) - Constructor for class dev.langchain4j.data.document.Metadata: Constructs a Metadata object from a map of key-value pairs.
MetadataFilterBuilder - Class in dev.langchain4j.store.embedding.filter: A helper class for building a Filter for Metadata key.
MetadataFilterBuilder(String) - Constructor for class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
metadataKey(String) - Static method in class dev.langchain4j.store.embedding.filter.MetadataFilterBuilder
mimeType() - Method in class dev.langchain4j.data.image.Image: Get the mime type of the image.
mimeType(String) - Method in class dev.langchain4j.data.image.Image.Builder: Set the mime type of the image.
minScore() - Method in class dev.langchain4j.store.embedding.EmbeddingSearchRequest
minScore(Double) - Method in class dev.langchain4j.rag.content.retriever.EmbeddingStoreContentRetriever.EmbeddingStoreContentRetrieverBuilder
ModelDisabledException - Exception Class in dev.langchain4j.model: An exception thrown by a model that could be disabled by a user.
ModelDisabledException(String) - Constructor for exception class dev.langchain4j.model.ModelDisabledException
moderate(ChatMessage) - Method in class dev.langchain4j.model.moderation.DisabledModerationModel
moderate(ChatMessage) - Method in interface dev.langchain4j.model.moderation.ModerationModel: Moderates the given chat message.
moderate(TextSegment) - Method in class dev.langchain4j.model.moderation.DisabledModerationModel
moderate(TextSegment) - Method in interface dev.langchain4j.model.moderation.ModerationModel: Moderates the given text segment.
moderate(Prompt) - Method in class dev.langchain4j.model.moderation.DisabledModerationModel
moderate(Prompt) - Method in interface dev.langchain4j.model.moderation.ModerationModel: Moderates the given prompt.
moderate(String) - Method in class dev.langchain4j.model.moderation.DisabledModerationModel
moderate(String) - Method in interface dev.langchain4j.model.moderation.ModerationModel: Moderates the given text.
moderate(List<ChatMessage>) - Method in class dev.langchain4j.model.moderation.DisabledModerationModel
moderate(List<ChatMessage>) - Method in interface dev.langchain4j.model.moderation.ModerationModel: Moderates the given list of chat messages.
Moderation - Class in dev.langchain4j.model.moderation: Represents moderation status.
Moderation() - Constructor for class dev.langchain4j.model.moderation.Moderation: Construct a Moderation object that is not flagged.
Moderation(String) - Constructor for class dev.langchain4j.model.moderation.Moderation: Construct a Moderation object that is flagged.
ModerationModel - Interface in dev.langchain4j.model.moderation: Represents a model that can moderate text.

N

n - Variable in class dev.langchain4j.rag.query.transformer.ExpandingQueryTransformer
name() - Element in annotation type dev.langchain4j.agent.tool.Tool: Name of the tool.
name() - Method in class dev.langchain4j.agent.tool.ToolExecutionRequest: Returns the name of the tool.
name() - Method in class dev.langchain4j.agent.tool.ToolSpecification: Returns the name of the tool.
name() - Method in class dev.langchain4j.data.message.UserMessage: The name of the user.
name(String) - Method in class dev.langchain4j.agent.tool.ToolExecutionRequest.Builder: Sets the name.
name(String) - Method in class dev.langchain4j.agent.tool.ToolSpecification.Builder: Sets the name.
normalize() - Method in class dev.langchain4j.data.embedding.Embedding: Normalize vector
not(Filter) - Static method in interface dev.langchain4j.store.embedding.filter.Filter
Not - Class in dev.langchain4j.store.embedding.filter.logical
Not(Filter) - Constructor for class dev.langchain4j.store.embedding.filter.logical.Not
notFlagged() - Static method in class dev.langchain4j.model.moderation.Moderation: Constructs a Moderation object that is not flagged.
NULL - Static variable in class dev.langchain4j.agent.tool.JsonSchemaProperty: A property with key "type" and value "null".
NUMBER - Static variable in class dev.langchain4j.agent.tool.JsonSchemaProperty: A property with key "type" and value "number".

O

OBJECT - Static variable in class dev.langchain4j.agent.tool.JsonSchemaProperty: A property with key "type" and value "object".
onComplete(Response<T>) - Method in interface dev.langchain4j.model.StreamingResponseHandler: Invoked when the language model has finished streaming a response.
onError(Throwable) - Method in interface dev.langchain4j.model.StreamingResponseHandler: This method is invoked when an error occurs during streaming.
onNext(String) - Method in interface dev.langchain4j.model.StreamingResponseHandler: Invoked each time the language model generates a new token in a textual response.
options - Variable in class dev.langchain4j.rag.query.router.LanguageModelQueryRouter
or(Filter) - Method in interface dev.langchain4j.store.embedding.filter.Filter
or(Filter, Filter) - Static method in interface dev.langchain4j.store.embedding.filter.Filter
Or - Class in dev.langchain4j.store.embedding.filter.logical
Or(Filter, Filter) - Constructor for class dev.langchain4j.store.embedding.filter.logical.Or
OTHER - Enum constant in enum dev.langchain4j.model.output.FinishReason: The call finished for some other reason.
OutputParser<T> - Interface in dev.langchain4j.model.output: Represents an output parser.
outputTokenCount() - Method in class dev.langchain4j.model.output.TokenUsage: Returns the output token count, or null if unknown.

P

P - Annotation Type in dev.langchain4j.agent.tool: Parameter of a Tool
parameters() - Method in class dev.langchain4j.agent.tool.ToolSpecification: Returns the parameters of the tool.
parameters(ToolParameters) - Method in class dev.langchain4j.agent.tool.ToolSpecification.Builder: Sets the parameters.
parse(InputStream) - Method in interface dev.langchain4j.data.document.DocumentParser: Parses an InputStream into a Document.
parse(String) - Method in interface dev.langchain4j.model.output.OutputParser: Parse the given text.
parse(String) - Method in class dev.langchain4j.rag.query.router.LanguageModelQueryRouter
parse(String) - Method in class dev.langchain4j.rag.query.transformer.ExpandingQueryTransformer
parse(String) - Method in interface dev.langchain4j.store.embedding.filter.FilterParser: Parses a filter expression string into a Filter object.
Prompt - Class in dev.langchain4j.model.input: Represents a prompt (an input text sent to the LLM).
Prompt(String) - Constructor for class dev.langchain4j.model.input.Prompt: Create a new Prompt.
promptTemplate - Variable in class dev.langchain4j.rag.query.router.LanguageModelQueryRouter
promptTemplate - Variable in class dev.langchain4j.rag.query.transformer.CompressingQueryTransformer
promptTemplate - Variable in class dev.langchain4j.rag.query.transformer.ExpandingQueryTransformer
PromptTemplate - Class in dev.langchain4j.model.input: Represents a template of a prompt that can be reused multiple times.
PromptTemplate(String) - Constructor for class dev.langchain4j.model.input.PromptTemplate: Create a new PromptTemplate.
PromptTemplateFactory - Interface in dev.langchain4j.spi.prompt: A factory for creating prompt templates.
PromptTemplateFactory.Input - Interface in dev.langchain4j.spi.prompt: Interface for input for the factory.
PromptTemplateFactory.Template - Interface in dev.langchain4j.spi.prompt: Interface for a prompt template.
properties() - Method in class dev.langchain4j.agent.tool.ToolParameters: Returns the properties of the tool.
properties(Map<String, Map<String, Object>>) - Method in class dev.langchain4j.agent.tool.ToolParameters.Builder: Sets the properties.
property(String, Object) - Static method in class dev.langchain4j.agent.tool.JsonSchemaProperty: Construct a property with key and value.
put(String, double) - Method in class dev.langchain4j.data.document.Metadata: Adds a key-value pair to the metadata.
put(String, float) - Method in class dev.langchain4j.data.document.Metadata: Adds a key-value pair to the metadata.
put(String, int) - Method in class dev.langchain4j.data.document.Metadata: Adds a key-value pair to the metadata.
put(String, long) - Method in class dev.langchain4j.data.document.Metadata: Adds a key-value pair to the metadata.
put(String, String) - Method in class dev.langchain4j.data.document.Metadata: Adds a key-value pair to the metadata.

Q

Query - Class in dev.langchain4j.rag.query: Represents a query from the user intended for retrieving relevant Contents.
Query(String) - Constructor for class dev.langchain4j.rag.query.Query
Query(String, Metadata) - Constructor for class dev.langchain4j.rag.query.Query
queryEmbedding() - Method in class dev.langchain4j.store.embedding.EmbeddingSearchRequest
QueryRouter - Interface in dev.langchain4j.rag.query.router: Routes the given Query to one or multiple ContentRetrievers.
QueryTransformer - Interface in dev.langchain4j.rag.query.transformer: Transforms the given Query into one or multiple Querys.
quoted(Object) - Static method in class dev.langchain4j.internal.Utils: Returns the given object's toString() surrounded by quotes.

R

randomUUID() - Static method in class dev.langchain4j.internal.Utils: Returns a random UUID.
rawDelayMs(int) - Method in class dev.langchain4j.internal.RetryUtils.RetryPolicy: This method returns the raw delay in milliseconds for a given attempt.
readBytes(String) - Static method in class dev.langchain4j.internal.Utils: Reads the content as bytes from the given URL as a GET request.
ReciprocalRankFuser - Class in dev.langchain4j.rag.content.aggregator: Implementation of Reciprocal Rank Fusion.
ReciprocalRankFuser() - Constructor for class dev.langchain4j.rag.content.aggregator.ReciprocalRankFuser
RelevanceScore - Class in dev.langchain4j.store.embedding: Utility class for converting between cosine similarity and relevance score.
remove(String) - Method in class dev.langchain4j.data.document.Metadata: Removes the given key from the metadata.
render(Map<String, Object>) - Method in interface dev.langchain4j.spi.prompt.PromptTemplateFactory.Template: Render the template.
repeat(String, int) - Static method in class dev.langchain4j.internal.Utils: Returns a string consisting of the given string repeated times times.
required() - Method in class dev.langchain4j.agent.tool.ToolParameters: Returns the required properties of the tool.
required(List<String>) - Method in class dev.langchain4j.agent.tool.ToolParameters.Builder: Sets the required.
reRankAndFilter(List<Content>, Query) - Method in class dev.langchain4j.rag.content.aggregator.ReRankingContentAggregator
ReRankingContentAggregator - Class in dev.langchain4j.rag.content.aggregator: A ContentAggregator that performs re-ranking using a ScoringModel, such as Cohere.
ReRankingContentAggregator(ScoringModel) - Constructor for class dev.langchain4j.rag.content.aggregator.ReRankingContentAggregator
ReRankingContentAggregator(ScoringModel, Function<Map<Query, Collection<List<Content>>>, Query>, Double) - Constructor for class dev.langchain4j.rag.content.aggregator.ReRankingContentAggregator
Response<T> - Class in dev.langchain4j.model.output: Represents the response from various types of models, including language, chat, embedding, and moderation models.
Response(T) - Constructor for class dev.langchain4j.model.output.Response: Create a new Response.
Response(T, TokenUsage, FinishReason) - Constructor for class dev.langchain4j.model.output.Response: Create a new Response.
RetrievalAugmentor - Interface in dev.langchain4j.rag: Augments the provided UserMessage with retrieved content.
retrieve(Query) - Method in interface dev.langchain4j.rag.content.retriever.ContentRetriever: Retrieves relevant Contents using a given Query.
retrieve(Query) - Method in class dev.langchain4j.rag.content.retriever.EmbeddingStoreContentRetriever
Retriever<T> - Interface in dev.langchain4j.retriever: Deprecated.
RetryPolicy(int, int, double, double) - Constructor for class dev.langchain4j.internal.RetryUtils.RetryPolicy: Construct a RetryPolicy.
retryPolicyBuilder() - Static method in class dev.langchain4j.internal.RetryUtils: This method returns a RetryPolicy.Builder.
RetryUtils - Class in dev.langchain4j.internal: Utility class for retrying actions.
RetryUtils.RetryPolicy - Class in dev.langchain4j.internal: This class encapsulates a retry policy.
RetryUtils.RetryPolicy.Builder - Class in dev.langchain4j.internal: This class encapsulates a retry policy builder.
revisedPrompt() - Method in class dev.langchain4j.data.image.Image: Get the revised prompt of the image.
revisedPrompt(String) - Method in class dev.langchain4j.data.image.Image.Builder: Set the revised prompt of the image.
right() - Method in class dev.langchain4j.store.embedding.filter.logical.And
right() - Method in class dev.langchain4j.store.embedding.filter.logical.Or
route(Query) - Method in class dev.langchain4j.rag.query.router.DefaultQueryRouter
route(Query) - Method in class dev.langchain4j.rag.query.router.LanguageModelQueryRouter
route(Query) - Method in interface dev.langchain4j.rag.query.router.QueryRouter: Routes the given Query to one or multiple ContentRetrievers.
ROUTE_TO_ALL - Enum constant in enum dev.langchain4j.rag.query.router.LanguageModelQueryRouter.FallbackStrategy: In this case, the Query will be routed to all ContentRetrievers.
runtime(String, Object...) - Static method in class dev.langchain4j.internal.Exceptions: Constructs an RuntimeException with the given formatted result.

S

score() - Method in class dev.langchain4j.store.embedding.EmbeddingMatch: Returns the relevance score (derivative of cosine distance) of this embedding compared to a reference embedding during a search.
score(TextSegment, String) - Method in interface dev.langchain4j.model.scoring.ScoringModel: Scores a given TextSegment against a given query.
score(String, String) - Method in interface dev.langchain4j.model.scoring.ScoringModel: Scores a given text against a given query.
scoreAll(List<TextSegment>, String) - Method in interface dev.langchain4j.model.scoring.ScoringModel: Scores all provided TextSegments against a given query.
ScoringModel - Interface in dev.langchain4j.model.scoring: Represents a model capable of scoring a text against a query.
search(EmbeddingSearchRequest) - Method in interface dev.langchain4j.store.embedding.EmbeddingStore: Searches for the most similar (closest in the embedding space) Embeddings.
ServiceHelper - Class in dev.langchain4j.spi: Utility wrapper around ServiceLoader.load().
singleText() - Method in class dev.langchain4j.data.message.UserMessage: Returns text from a single TextContent.
sleep(int) - Method in class dev.langchain4j.internal.RetryUtils.RetryPolicy: This method sleeps for a given attempt.
split(Document) - Method in interface dev.langchain4j.data.document.DocumentSplitter: Splits a single Document into a list of TextSegment objects.
splitAll(List<Document>) - Method in interface dev.langchain4j.data.document.DocumentSplitter: Splits a list of Documents into a list of TextSegment objects.
STOP - Enum constant in enum dev.langchain4j.model.output.FinishReason: The model call finished because the model decided the request was done.
StreamingChatLanguageModel - Interface in dev.langchain4j.model.chat: Represents a language model that has a chat interface and can stream a response one token at a time.
StreamingLanguageModel - Interface in dev.langchain4j.model.language: Represents a language model that has a simple text interface (as opposed to a chat interface) and can stream a response one token at a time.
StreamingResponseHandler<T> - Interface in dev.langchain4j.model: Represents a handler for streaming responses from a language model.
STRING - Static variable in class dev.langchain4j.agent.tool.JsonSchemaProperty: A property with key "type" and value "string".
StructuredPrompt - Annotation Type in dev.langchain4j.model.input.structured: Represents a structured prompt.
StructuredPrompt.Util - Class in dev.langchain4j.model.input.structured: Utility class for StructuredPrompt.
StructuredPromptFactory - Interface in dev.langchain4j.spi.prompt.structured: Represents a factory for structured prompts.
StructuredPromptProcessor - Class in dev.langchain4j.model.input.structured: Utility class for structured prompts.
SYSTEM - Enum constant in enum dev.langchain4j.data.message.ChatMessageType: A message from the system, typically defined by a developer.
systemMessage(String) - Static method in class dev.langchain4j.data.message.SystemMessage: Creates a new system message.
SystemMessage - Class in dev.langchain4j.data.message: Represents a system message, typically defined by a developer.
SystemMessage(String) - Constructor for class dev.langchain4j.data.message.SystemMessage: Creates a new system message.

T

template() - Method in class dev.langchain4j.model.input.PromptTemplate
test(Object) - Method in class dev.langchain4j.store.embedding.filter.comparison.IsEqualTo
test(Object) - Method in class dev.langchain4j.store.embedding.filter.comparison.IsGreaterThan
test(Object) - Method in class dev.langchain4j.store.embedding.filter.comparison.IsGreaterThanOrEqualTo
test(Object) - Method in class dev.langchain4j.store.embedding.filter.comparison.IsIn
test(Object) - Method in class dev.langchain4j.store.embedding.filter.comparison.IsLessThan
test(Object) - Method in class dev.langchain4j.store.embedding.filter.comparison.IsLessThanOrEqualTo
test(Object) - Method in class dev.langchain4j.store.embedding.filter.comparison.IsNotEqualTo
test(Object) - Method in class dev.langchain4j.store.embedding.filter.comparison.IsNotIn
test(Object) - Method in interface dev.langchain4j.store.embedding.filter.Filter: Tests if a given object satisfies this Filter.
test(Object) - Method in class dev.langchain4j.store.embedding.filter.logical.And
test(Object) - Method in class dev.langchain4j.store.embedding.filter.logical.Not
test(Object) - Method in class dev.langchain4j.store.embedding.filter.logical.Or
text() - Method in class dev.langchain4j.data.document.Document: Returns the text of this document.
text() - Method in class dev.langchain4j.data.message.AiMessage: Get the text of the message.
text() - Method in interface dev.langchain4j.data.message.ChatMessage: Deprecated.
decode through ChatMessage.type() instead.
text() - Method in class dev.langchain4j.data.message.SystemMessage: Returns the message text.
text() - Method in class dev.langchain4j.data.message.TextContent: Returns the text.
text() - Method in class dev.langchain4j.data.message.ToolExecutionResultMessage: Returns the result of the tool execution.
text() - Method in class dev.langchain4j.data.message.UserMessage: Deprecated.
Use UserMessage.singleText() or UserMessage.contents() instead.
text() - Method in class dev.langchain4j.data.segment.TextSegment: Returns the text.
text() - Method in class dev.langchain4j.model.input.Prompt: The text of the prompt.
text() - Method in class dev.langchain4j.rag.query.Query
TEXT - Enum constant in enum dev.langchain4j.data.message.ContentType: Text content.
TextClassifier<E> - Interface in dev.langchain4j.classification: Classifies given text according to specified enum.
TextContent - Class in dev.langchain4j.data.message: Represents a text content.
TextContent(String) - Constructor for class dev.langchain4j.data.message.TextContent: Creates a new text content.
textSegment() - Method in class dev.langchain4j.rag.content.Content
textSegment(String) - Static method in class dev.langchain4j.data.segment.TextSegment: Creates a new text segment.
textSegment(String, Metadata) - Static method in class dev.langchain4j.data.segment.TextSegment: Creates a new text segment.
TextSegment - Class in dev.langchain4j.data.segment: Represents a semantically meaningful segment (chunk/piece/fragment) of a larger entity such as a document or chat conversation.
TextSegment(String, Metadata) - Constructor for class dev.langchain4j.data.segment.TextSegment: Creates a new text segment.
textSegmentTransformer(TextSegmentTransformer) - Method in class dev.langchain4j.store.embedding.EmbeddingStoreIngestor.Builder: Sets the text segment transformer.
TextSegmentTransformer - Interface in dev.langchain4j.data.segment: Defines the interface for transforming a TextSegment.
toAiMessage() - Method in class dev.langchain4j.model.input.Prompt: Convert this prompt to an AiMessage.
toContentRetriever() - Method in interface dev.langchain4j.retriever.Retriever: Deprecated.
toInputStream(Object, Class<?>) - Method in interface dev.langchain4j.internal.Json.JsonCodec: Convert the given object to an InputStream.
toInputStream(Object, Class<?>) - Static method in class dev.langchain4j.internal.Json: Convert the given object to an InputStream.
toJson(Object) - Method in interface dev.langchain4j.internal.Json.JsonCodec: Convert the given object to JSON.
toJson(Object) - Static method in class dev.langchain4j.internal.Json: Convert the given object to JSON.
TokenCountEstimator - Interface in dev.langchain4j.model.chat: Represents an interface for estimating the count of tokens in various text types such as a text, message, prompt, text segment, etc.
TokenCountEstimator - Interface in dev.langchain4j.model.embedding: Represents an interface for estimating the count of tokens in various texts, text segments, etc.
TokenCountEstimator - Interface in dev.langchain4j.model.language: Represents an interface for estimating the count of tokens in various text types such as a text, prompt, text segment, etc.
Tokenizer - Interface in dev.langchain4j.model: Represents an interface for estimating the count of tokens in various text types such as a text, prompt, text segment, etc.
tokenUsage() - Method in class dev.langchain4j.model.output.Response: Get the token usage statistics.
TokenUsage - Class in dev.langchain4j.model.output: Represents the token usage of a response.
TokenUsage() - Constructor for class dev.langchain4j.model.output.TokenUsage: Creates a new TokenUsage instance with all fields set to null.
TokenUsage(Integer) - Constructor for class dev.langchain4j.model.output.TokenUsage: Creates a new TokenUsage instance with the given input token count.
TokenUsage(Integer, Integer) - Constructor for class dev.langchain4j.model.output.TokenUsage: Creates a new TokenUsage instance with the given input and output token counts.
TokenUsage(Integer, Integer, Integer) - Constructor for class dev.langchain4j.model.output.TokenUsage: Creates a new TokenUsage instance with the given input, output and total token counts.
toMap() - Method in class dev.langchain4j.data.document.Metadata: Get a copy of the metadata as a map of key-value pairs.
Tool - Annotation Type in dev.langchain4j.agent.tool: Java methods annotated with @Tool are considered tools that language model can use.
TOOL_EXECUTION - Enum constant in enum dev.langchain4j.model.output.FinishReason: The call finished signalling a need for tool execution.
TOOL_EXECUTION_RESULT - Enum constant in enum dev.langchain4j.data.message.ChatMessageType: A message from a tool.
ToolExecutionRequest - Class in dev.langchain4j.agent.tool: Represents a request to execute a tool.
ToolExecutionRequest.Builder - Class in dev.langchain4j.agent.tool: ToolExecutionRequest builder static inner class.
toolExecutionRequests() - Method in class dev.langchain4j.data.message.AiMessage: Get the tool execution requests of the message.
ToolExecutionRequestUtil - Class in dev.langchain4j.agent.tool: Utility class for ToolExecutionRequest.
toolExecutionResultMessage(ToolExecutionRequest, String) - Static method in class dev.langchain4j.data.message.ToolExecutionResultMessage: Creates a ToolExecutionResultMessage from a ToolExecutionRequest and the result of the tool execution.
toolExecutionResultMessage(String, String, String) - Static method in class dev.langchain4j.data.message.ToolExecutionResultMessage: Creates a ToolExecutionResultMessage from a ToolExecutionRequest and the result of the tool execution.
ToolExecutionResultMessage - Class in dev.langchain4j.data.message: Represents the result of a tool execution in response to a ToolExecutionRequest.
ToolExecutionResultMessage(String, String, String) - Constructor for class dev.langchain4j.data.message.ToolExecutionResultMessage: Creates a ToolExecutionResultMessage.
ToolMemoryId - Annotation Type in dev.langchain4j.agent.tool: If a Tool method parameter is annotated with this annotation, memory id (parameter annotated with @MemoryId in AI Service) will be injected automatically.
toolName() - Method in class dev.langchain4j.data.message.ToolExecutionResultMessage: Returns the name of the tool.
ToolParameters - Class in dev.langchain4j.agent.tool: Represents the parameters of a tool.
ToolParameters.Builder - Class in dev.langchain4j.agent.tool: ToolParameters builder static inner class.
ToolSpecification - Class in dev.langchain4j.agent.tool: Describes a Tool.
ToolSpecification.Builder - Class in dev.langchain4j.agent.tool: ToolSpecification builder static inner class.
toolSpecificationFrom(Method) - Static method in class dev.langchain4j.agent.tool.ToolSpecifications: Get the ToolSpecification for the given Tool method.
ToolSpecifications - Class in dev.langchain4j.agent.tool: Utility methods for ToolSpecifications.
toolSpecificationsFrom(Object) - Static method in class dev.langchain4j.agent.tool.ToolSpecifications: Get the ToolSpecifications for each Tool method of the given object.
toPrompt(Object) - Method in class dev.langchain4j.model.input.structured.DefaultStructuredPromptFactory
toPrompt(Object) - Static method in class dev.langchain4j.model.input.structured.StructuredPromptProcessor: Converts the given structured prompt to a prompt.
toPrompt(Object) - Method in interface dev.langchain4j.spi.prompt.structured.StructuredPromptFactory: Converts the given structured prompt to a prompt.
toString() - Method in class dev.langchain4j.agent.tool.JsonSchemaProperty
toString() - Method in class dev.langchain4j.agent.tool.ToolExecutionRequest
toString() - Method in class dev.langchain4j.agent.tool.ToolParameters
toString() - Method in class dev.langchain4j.agent.tool.ToolSpecification
toString() - Method in class dev.langchain4j.data.document.Document
toString() - Method in class dev.langchain4j.data.document.Metadata
toString() - Method in class dev.langchain4j.data.embedding.Embedding
toString() - Method in class dev.langchain4j.data.image.Image
toString() - Method in class dev.langchain4j.data.message.AiMessage
toString() - Method in class dev.langchain4j.data.message.ImageContent
toString() - Method in class dev.langchain4j.data.message.SystemMessage
toString() - Method in class dev.langchain4j.data.message.TextContent
toString() - Method in class dev.langchain4j.data.message.ToolExecutionResultMessage
toString() - Method in class dev.langchain4j.data.message.UserMessage
toString() - Method in class dev.langchain4j.data.segment.TextSegment
toString() - Method in class dev.langchain4j.model.input.Prompt
toString() - Method in class dev.langchain4j.model.moderation.Moderation
toString() - Method in class dev.langchain4j.model.output.Response
toString() - Method in class dev.langchain4j.model.output.TokenUsage
toString() - Method in class dev.langchain4j.rag.content.Content
toString() - Method in class dev.langchain4j.rag.query.Metadata
toString() - Method in class dev.langchain4j.rag.query.Query
toString() - Method in class dev.langchain4j.store.embedding.EmbeddingMatch
toSystemMessage() - Method in class dev.langchain4j.model.input.Prompt: Convert this prompt to a SystemMessage.
totalTokenCount() - Method in class dev.langchain4j.model.output.TokenUsage: Returns the total token count, or null if unknown.
toTextSegment() - Method in class dev.langchain4j.data.document.Document: Builds a TextSegment from this document.
toUserMessage() - Method in class dev.langchain4j.model.input.Prompt: Convert this prompt to a UserMessage.
transform(Document) - Method in interface dev.langchain4j.data.document.DocumentTransformer: Transforms a provided document.
transform(TextSegment) - Method in interface dev.langchain4j.data.segment.TextSegmentTransformer: Transforms a provided segment.
transform(Query) - Method in class dev.langchain4j.rag.query.transformer.CompressingQueryTransformer
transform(Query) - Method in class dev.langchain4j.rag.query.transformer.DefaultQueryTransformer
transform(Query) - Method in class dev.langchain4j.rag.query.transformer.ExpandingQueryTransformer
transform(Query) - Method in interface dev.langchain4j.rag.query.transformer.QueryTransformer: Transforms the given Query into one or multiple Querys.
transformAll(List<Document>) - Method in interface dev.langchain4j.data.document.DocumentTransformer: Transforms all the provided documents.
transformAll(List<TextSegment>) - Method in interface dev.langchain4j.data.segment.TextSegmentTransformer: Transforms all the provided segments.
type() - Method in class dev.langchain4j.agent.tool.ToolParameters: Returns the type of the tool.
type() - Method in class dev.langchain4j.data.message.AiMessage
type() - Method in interface dev.langchain4j.data.message.ChatMessage: The type of the message.
type() - Method in interface dev.langchain4j.data.message.Content: Returns the type of content.
type() - Method in class dev.langchain4j.data.message.ImageContent
type() - Method in class dev.langchain4j.data.message.SystemMessage
type() - Method in class dev.langchain4j.data.message.TextContent
type() - Method in class dev.langchain4j.data.message.ToolExecutionResultMessage
type() - Method in class dev.langchain4j.data.message.UserMessage
type(String) - Static method in class dev.langchain4j.agent.tool.JsonSchemaProperty: Construct a property with key "type" and value.
type(String) - Method in class dev.langchain4j.agent.tool.ToolParameters.Builder: Sets the type.

U

updateMessages(Object, List<ChatMessage>) - Method in interface dev.langchain4j.store.memory.chat.ChatMemoryStore: Updates messages for a specified chat memory.
updateMessages(Object, List<ChatMessage>) - Method in class dev.langchain4j.store.memory.chat.InMemoryChatMemoryStore
url() - Method in class dev.langchain4j.data.image.Image: Get the url of the image.
url(String) - Method in class dev.langchain4j.data.image.Image.Builder: Set the url of the image.
url(URI) - Method in class dev.langchain4j.data.image.Image.Builder: Set the url of the image.
URL - Static variable in class dev.langchain4j.data.document.Document: Common metadata key for the URL from which the document was loaded.
USER - Enum constant in enum dev.langchain4j.data.message.ChatMessageType: A message from the user.
userMessage() - Method in class dev.langchain4j.rag.query.Metadata
userMessage(Content...) - Static method in class dev.langchain4j.data.message.UserMessage: Create a UserMessage from contents.
userMessage(String) - Static method in class dev.langchain4j.data.message.UserMessage: Create a UserMessage from a text.
userMessage(String, Content...) - Static method in class dev.langchain4j.data.message.UserMessage: Create a UserMessage from a name and contents.
userMessage(String, String) - Static method in class dev.langchain4j.data.message.UserMessage: Create a UserMessage from a name and a text.
userMessage(String, List<Content>) - Static method in class dev.langchain4j.data.message.UserMessage: Create a UserMessage from a name and contents.
userMessage(List<Content>) - Static method in class dev.langchain4j.data.message.UserMessage: Create a UserMessage from contents.
UserMessage - Class in dev.langchain4j.data.message: Represents a message from a user, typically an end user of the application.
UserMessage(Content...) - Constructor for class dev.langchain4j.data.message.UserMessage: Creates a UserMessage from one or multiple Contents.
UserMessage(String) - Constructor for class dev.langchain4j.data.message.UserMessage: Creates a UserMessage from a text.
UserMessage(String, Content...) - Constructor for class dev.langchain4j.data.message.UserMessage: Creates a UserMessage from a name and one or multiple Contents.
UserMessage(String, String) - Constructor for class dev.langchain4j.data.message.UserMessage: Creates a UserMessage from a name and a text.
UserMessage(String, List<Content>) - Constructor for class dev.langchain4j.data.message.UserMessage: Creates a UserMessage from a name and a list of Contents.
UserMessage(List<Content>) - Constructor for class dev.langchain4j.data.message.UserMessage: Creates a UserMessage from a list of Contents.
Utils - Class in dev.langchain4j.internal: Utility methods.

V

validateStructuredPrompt(Object) - Static method in class dev.langchain4j.model.input.structured.StructuredPrompt.Util: Validates that the given object is annotated with StructuredPrompt.
ValidationUtils - Class in dev.langchain4j.internal: Utility class for validating method arguments.
value() - Method in class dev.langchain4j.agent.tool.JsonSchemaProperty: Get the value.
value() - Element in annotation type dev.langchain4j.agent.tool.P: Description of a parameter
value() - Element in annotation type dev.langchain4j.agent.tool.Tool: Description of the tool.
value() - Element in annotation type dev.langchain4j.model.input.structured.StructuredPrompt: Prompt template can be defined in one line or multiple lines.
value() - Element in annotation type dev.langchain4j.model.output.structured.Description: The description can be defined in one line or multiple lines.
valueOf(String) - Static method in enum dev.langchain4j.data.message.ChatMessageType: Returns the enum constant of this type with the specified name.
valueOf(String) - Static method in enum dev.langchain4j.data.message.ContentType: Returns the enum constant of this type with the specified name.
valueOf(String) - Static method in enum dev.langchain4j.data.message.ImageContent.DetailLevel: Returns the enum constant of this type with the specified name.
valueOf(String) - Static method in enum dev.langchain4j.model.output.FinishReason: Returns the enum constant of this type with the specified name.
valueOf(String) - Static method in enum dev.langchain4j.rag.query.router.LanguageModelQueryRouter.FallbackStrategy: Returns the enum constant of this type with the specified name.
values() - Static method in enum dev.langchain4j.data.message.ChatMessageType: Returns an array containing the constants of this enum type, in the order they are declared.
values() - Static method in enum dev.langchain4j.data.message.ContentType: Returns an array containing the constants of this enum type, in the order they are declared.
values() - Static method in enum dev.langchain4j.data.message.ImageContent.DetailLevel: Returns an array containing the constants of this enum type, in the order they are declared.
values() - Static method in enum dev.langchain4j.model.output.FinishReason: Returns an array containing the constants of this enum type, in the order they are declared.
values() - Static method in enum dev.langchain4j.rag.query.router.LanguageModelQueryRouter.FallbackStrategy: Returns an array containing the constants of this enum type, in the order they are declared.
vector() - Method in class dev.langchain4j.data.embedding.Embedding: Returns the vector.
vectorAsList() - Method in class dev.langchain4j.data.embedding.Embedding: Returns a copy of the vector as a list.

W

withRetry(Callable<T>) - Method in class dev.langchain4j.internal.RetryUtils.RetryPolicy: This method attempts to execute a given action up to a specified number of times with a 1-second delay.
withRetry(Callable<T>) - Static method in class dev.langchain4j.internal.RetryUtils: This method attempts to execute a given action up to a specified number of times with a 1-second delay.
withRetry(Callable<T>, int) - Method in class dev.langchain4j.internal.RetryUtils.RetryPolicy: This method attempts to execute a given action up to a specified number of times with a 1-second delay.
withRetry(Callable<T>, int) - Static method in class dev.langchain4j.internal.RetryUtils: This method attempts to execute a given action up to a specified number of times with a 1-second delay.

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