A B C D E F G H I J K L M N O P Q R S T U V W

A

ABSOLUTE_DIRECTORY_PATH - Static variable in class dev.langchain4j.data.document.Document

add(String, Object) - Method in class dev.langchain4j.data.document.Metadata

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

add(Embedding) - Method in interface dev.langchain4j.store.embedding.EmbeddingStore

Adds a given embedding to the store.

add(String, 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.

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

addOptionalParameter(String, Iterable<JsonSchemaProperty>) - Method in class dev.langchain4j.agent.tool.ToolSpecification.Builder

addParameter(String, JsonSchemaProperty...) - Method in class dev.langchain4j.agent.tool.ToolSpecification.Builder

addParameter(String, Iterable<JsonSchemaProperty>) - Method in class dev.langchain4j.agent.tool.ToolSpecification.Builder

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

AiMessage(String, ToolExecutionRequest) - Constructor for class dev.langchain4j.data.message.AiMessage

aiMessage(String) - Static method in class dev.langchain4j.data.message.AiMessage

aiMessage(ToolExecutionRequest) - Static method in class dev.langchain4j.data.message.AiMessage

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.

argument(String) - Method in class dev.langchain4j.agent.tool.ToolExecutionRequest

arguments() - Method in class dev.langchain4j.agent.tool.ToolExecutionRequest

arguments(String) - Method in class dev.langchain4j.agent.tool.ToolExecutionRequest.Builder

argumentsAsMap() - Method in class dev.langchain4j.agent.tool.ToolExecutionRequest

ARRAY - Static variable in class dev.langchain4j.agent.tool.JsonSchemaProperty

asMap() - Method in class dev.langchain4j.data.document.Metadata

B

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

build() - Method in class dev.langchain4j.agent.tool.ToolExecutionRequest.Builder

build() - Method in class dev.langchain4j.agent.tool.ToolParameters.Builder

build() - Method in class dev.langchain4j.agent.tool.ToolSpecification.Builder

builder() - Static method in class dev.langchain4j.agent.tool.ToolExecutionRequest

builder() - Static method in class dev.langchain4j.agent.tool.ToolParameters

builder() - Static method in class dev.langchain4j.agent.tool.ToolSpecification

C

Chain<Input,Output> - Interface in dev.langchain4j.chain

ChatLanguageModel - Interface in dev.langchain4j.model.chat

Represents a language model that has a chat interface.

ChatMemory - Interface in dev.langchain4j.memory

Represents the memory (history) of a chat conversation.

ChatMemoryStore - Interface in dev.langchain4j.store.memory.chat

Represents a store for the ChatMemory state.

ChatMessage - Class in dev.langchain4j.data.message

ChatMessageDeserializer - Class in dev.langchain4j.data.message

ChatMessageDeserializer() - Constructor for class dev.langchain4j.data.message.ChatMessageDeserializer

ChatMessageSerializer - Class in dev.langchain4j.data.message

ChatMessageSerializer() - Constructor for class dev.langchain4j.data.message.ChatMessageSerializer

ChatMessageType - Enum in dev.langchain4j.data.message

classify(String) - Method in interface dev.langchain4j.classification.TextClassifier

Classify the given text.

classify(TextSegment) - Method in interface dev.langchain4j.classification.TextClassifier

Classify the given TextSegment.

classify(Document) - Method in interface dev.langchain4j.classification.TextClassifier

Classify the given Document.

classOf(ChatMessageType) - Static method in enum dev.langchain4j.data.message.ChatMessageType

clear() - Method in interface dev.langchain4j.memory.ChatMemory

Clears the chat memory.

CodeExecutionEngine - Interface in dev.langchain4j.code

content() - Method in class dev.langchain4j.model.output.Response

copy() - Method in class dev.langchain4j.data.document.Metadata

CosineSimilarity - Class in dev.langchain4j.store.embedding

CosineSimilarity() - Constructor for class dev.langchain4j.store.embedding.CosineSimilarity

D

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

description(String) - Static method in class dev.langchain4j.agent.tool.JsonSchemaProperty

description(String) - Method in class dev.langchain4j.agent.tool.ToolSpecification.Builder

description() - Method in class dev.langchain4j.agent.tool.ToolSpecification

Description - Annotation Type in dev.langchain4j.model.output.structured

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.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.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.retriever - package dev.langchain4j.retriever

dev.langchain4j.store.embedding - package dev.langchain4j.store.embedding

dev.langchain4j.store.memory.chat - package dev.langchain4j.store.memory.chat

dimensions() - Method in class dev.langchain4j.data.embedding.Embedding

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, Metadata) - Constructor for class dev.langchain4j.data.document.Document

document(String) - Static method in class dev.langchain4j.data.document.Document

document(String, Metadata) - Static method in class dev.langchain4j.data.document.Document

DOCUMENT_TYPE - Static variable in class dev.langchain4j.data.document.Document

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 - Interface in dev.langchain4j.data.document

Defines the interface for splitting a document into text segments.

DocumentTransformer - Interface in dev.langchain4j.data.document

Defines the interface for transforming a Document.

E

embed(String) - Method in interface dev.langchain4j.model.embedding.EmbeddingModel

embed(TextSegment) - Method in interface dev.langchain4j.model.embedding.EmbeddingModel

embedAll(List<TextSegment>) - Method in interface dev.langchain4j.model.embedding.EmbeddingModel

embedded() - Method in class dev.langchain4j.store.embedding.EmbeddingMatch

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

embedding() - Method in class dev.langchain4j.store.embedding.EmbeddingMatch

embeddingId() - Method in class dev.langchain4j.store.embedding.EmbeddingMatch

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

EmbeddingModel - Interface in dev.langchain4j.model.embedding

Represents a model that can convert a given text into an embedding (vector representation of the text).

EmbeddingStore<Embedded> - Interface in dev.langchain4j.store.embedding

Represents a store for embeddings, also known as a vector database.

ensureBetween(Double, double, double, String) - Static method in class dev.langchain4j.internal.ValidationUtils

ensureBetween(Integer, int, int, String) - Static method in class dev.langchain4j.internal.ValidationUtils

ensureGreaterThanZero(Integer, String) - Static method in class dev.langchain4j.internal.ValidationUtils

ensureNotBlank(String, String) - Static method in class dev.langchain4j.internal.ValidationUtils

ensureNotEmpty(T, String) - Static method in class dev.langchain4j.internal.ValidationUtils

ensureNotNull(T, String) - Static method in class dev.langchain4j.internal.ValidationUtils

ensureTrue(boolean, String) - Static method in class dev.langchain4j.internal.ValidationUtils

enums(String...) - Static method in class dev.langchain4j.agent.tool.JsonSchemaProperty

enums(Object...) - Static method in class dev.langchain4j.agent.tool.JsonSchemaProperty

enums(Class<?>) - Static method in class dev.langchain4j.agent.tool.JsonSchemaProperty

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.message.AiMessage

equals(Object) - Method in class dev.langchain4j.data.message.SystemMessage

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.store.embedding.EmbeddingMatch

estimateTokenCount(String) - Method in interface dev.langchain4j.model.chat.TokenCountEstimator

estimateTokenCount(UserMessage) - Method in interface dev.langchain4j.model.chat.TokenCountEstimator

estimateTokenCount(Prompt) - Method in interface dev.langchain4j.model.chat.TokenCountEstimator

estimateTokenCount(TextSegment) - Method in interface dev.langchain4j.model.chat.TokenCountEstimator

estimateTokenCount(List<ChatMessage>) - Method in interface dev.langchain4j.model.chat.TokenCountEstimator

estimateTokenCount(String) - Method in interface dev.langchain4j.model.embedding.TokenCountEstimator

estimateTokenCount(TextSegment) - Method in interface dev.langchain4j.model.embedding.TokenCountEstimator

estimateTokenCount(List<TextSegment>) - Method in interface dev.langchain4j.model.embedding.TokenCountEstimator

estimateTokenCount(String) - Method in interface dev.langchain4j.model.language.TokenCountEstimator

estimateTokenCount(Prompt) - Method in interface dev.langchain4j.model.language.TokenCountEstimator

estimateTokenCount(TextSegment) - Method in interface dev.langchain4j.model.language.TokenCountEstimator

estimateTokenCountInMessage(ChatMessage) - Method in interface dev.langchain4j.model.Tokenizer

estimateTokenCountInMessages(Iterable<ChatMessage>) - Method in interface dev.langchain4j.model.Tokenizer

estimateTokenCountInText(String) - Method in interface dev.langchain4j.model.Tokenizer

estimateTokenCountInTools(Object) - Method in interface dev.langchain4j.model.Tokenizer

estimateTokenCountInTools(Iterable<Object>) - Method in interface dev.langchain4j.model.Tokenizer

estimateTokenCountInToolSpecification(ToolSpecification) - Method in interface dev.langchain4j.model.Tokenizer

estimateTokenCountInToolSpecifications(Iterable<ToolSpecification>) - Method in interface dev.langchain4j.model.Tokenizer

Exceptions - Class in dev.langchain4j.internal

Exceptions() - Constructor for class dev.langchain4j.internal.Exceptions

execute(Input) - Method in interface dev.langchain4j.chain.Chain

execute(String) - Method in interface dev.langchain4j.code.CodeExecutionEngine

F

FILE_NAME - Static variable in class dev.langchain4j.data.document.Document

findRelevant(String) - Method in interface dev.langchain4j.retriever.Retriever

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.

FinishReason - Enum in dev.langchain4j.model.output

finishReason() - Method in class dev.langchain4j.model.output.Response

firstChars(String, int) - Static method in class dev.langchain4j.internal.Utils

flagged() - Method in class dev.langchain4j.model.moderation.Moderation

flagged(String) - Static method in class dev.langchain4j.model.moderation.Moderation

flaggedText() - Method in class dev.langchain4j.model.moderation.Moderation

formatInstructions() - Method in interface dev.langchain4j.model.output.OutputParser

from(String, Object) - Static method in class dev.langchain4j.agent.tool.JsonSchemaProperty

from(String) - Static method in class dev.langchain4j.data.document.Document

from(String, Metadata) - Static method in class dev.langchain4j.data.document.Document

from(String, Object) - Static method in class dev.langchain4j.data.document.Metadata

from(Map<String, String>) - Static method in class dev.langchain4j.data.document.Metadata

from(float[]) - Static method in class dev.langchain4j.data.embedding.Embedding

from(List<Float>) - Static method in class dev.langchain4j.data.embedding.Embedding

from(String) - Static method in class dev.langchain4j.data.message.AiMessage

from(ToolExecutionRequest) - Static method in class dev.langchain4j.data.message.AiMessage

from(String) - Static method in class dev.langchain4j.data.message.SystemMessage

from(String, String) - Static method in class dev.langchain4j.data.message.ToolExecutionResultMessage

from(String) - Static method in class dev.langchain4j.data.message.UserMessage

from(String, String) - Static method in class dev.langchain4j.data.message.UserMessage

from(String) - Static method in class dev.langchain4j.data.segment.TextSegment

from(String, Metadata) - Static method in class dev.langchain4j.data.segment.TextSegment

from(String) - Static method in class dev.langchain4j.model.input.Prompt

from(String) - Static method in class dev.langchain4j.model.input.PromptTemplate

from(T) - Static method in class dev.langchain4j.model.output.Response

from(T, TokenUsage) - Static method in class dev.langchain4j.model.output.Response

from(T, TokenUsage, FinishReason) - Static method in class dev.langchain4j.model.output.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

fromRelevanceScore(double) - Static method in class dev.langchain4j.store.embedding.CosineSimilarity

Converts relevance score into cosine similarity.

G

generate(String) - Method in interface dev.langchain4j.model.chat.ChatLanguageModel

Generates a response from the model based on a message from a user.

generate(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 interface dev.langchain4j.model.chat.ChatLanguageModel

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>, 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(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(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>, 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.

generate(List<ChatMessage>, ToolSpecification, StreamingResponseHandler<AiMessage>) - Method in interface dev.langchain4j.model.chat.StreamingChatLanguageModel

generate(String) - Method in interface dev.langchain4j.model.language.LanguageModel

generate(Prompt) - Method in interface dev.langchain4j.model.language.LanguageModel

generate(String, StreamingResponseHandler<String>) - Method in interface dev.langchain4j.model.language.StreamingLanguageModel

generate(Prompt, StreamingResponseHandler<String>) - Method in interface dev.langchain4j.model.language.StreamingLanguageModel

generateUUIDFrom(String) - Static method in class dev.langchain4j.internal.Utils

get(String) - Method in class dev.langchain4j.data.document.Metadata

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

getOrDefault(T, T) - Static method in class dev.langchain4j.internal.Utils

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.message.AiMessage

hashCode() - Method in class dev.langchain4j.data.message.SystemMessage

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.store.embedding.EmbeddingMatch

I

id() - Method in interface dev.langchain4j.memory.ChatMemory

illegalArgument(String, Object...) - Static method in class dev.langchain4j.internal.Exceptions

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

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

INTEGER - Static variable in class dev.langchain4j.agent.tool.JsonSchemaProperty

isCollectionEmpty(Collection<?>) - Static method in class dev.langchain4j.internal.Utils

isNullOrBlank(String) - Static method in class dev.langchain4j.internal.Utils

J

Json - Class in dev.langchain4j.internal

Json() - Constructor for class dev.langchain4j.internal.Json

JsonSchemaProperty - Class in dev.langchain4j.agent.tool

JsonSchemaProperty(String, Object) - Constructor for class dev.langchain4j.agent.tool.JsonSchemaProperty

K

key() - Method in class dev.langchain4j.agent.tool.JsonSchemaProperty

L

LanguageModel - Interface in dev.langchain4j.model.language

Represents a language model that has a simple text interface (as opposed to a chat interface).

M

messageFromJson(String) - Static method in class dev.langchain4j.data.message.ChatMessageDeserializer

Deserializes a JSON string into a ChatMessage.

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.

messagesToJson(List<ChatMessage>) - Static method in class dev.langchain4j.data.message.ChatMessageSerializer

Serializes a list of chat messages into a JSON string.

messageToJson(ChatMessage) - Static method in class dev.langchain4j.data.message.ChatMessageSerializer

Serializes a chat message into a JSON string.

metadata() - Method in class dev.langchain4j.data.document.Document

metadata(String) - Method in class dev.langchain4j.data.document.Document

metadata() - Method in interface dev.langchain4j.data.document.DocumentSource

Returns the metadata associated with the source of the document.

Metadata - Class in dev.langchain4j.data.document

Represents metadata of a Document or a TextSegment.

Metadata() - Constructor for class dev.langchain4j.data.document.Metadata

Metadata(Map<String, String>) - Constructor for class dev.langchain4j.data.document.Metadata

metadata(String, Object) - Static method in class dev.langchain4j.data.document.Metadata

metadata() - Method in class dev.langchain4j.data.segment.TextSegment

metadata(String) - Method in class dev.langchain4j.data.segment.TextSegment

MightChangeInTheFuture - Annotation Type in dev.langchain4j

Indicates that a class/constructor/method is experimental and might change in the future.

moderate(String) - Method in interface dev.langchain4j.model.moderation.ModerationModel

moderate(Prompt) - Method in interface dev.langchain4j.model.moderation.ModerationModel

moderate(ChatMessage) - Method in interface dev.langchain4j.model.moderation.ModerationModel

moderate(List<ChatMessage>) - Method in interface dev.langchain4j.model.moderation.ModerationModel

moderate(TextSegment) - Method in interface dev.langchain4j.model.moderation.ModerationModel

Moderation - Class in dev.langchain4j.model.moderation

Moderation() - Constructor for class dev.langchain4j.model.moderation.Moderation

Moderation(String) - Constructor for class dev.langchain4j.model.moderation.Moderation

ModerationModel - Interface in dev.langchain4j.model.moderation

N

name(String) - Method in class dev.langchain4j.agent.tool.ToolExecutionRequest.Builder

name() - Method in class dev.langchain4j.agent.tool.ToolExecutionRequest

name(String) - Method in class dev.langchain4j.agent.tool.ToolSpecification.Builder

name() - Method in class dev.langchain4j.agent.tool.ToolSpecification

name() - Method in class dev.langchain4j.data.message.UserMessage

notFlagged() - Static method in class dev.langchain4j.model.moderation.Moderation

NULL - Static variable in class dev.langchain4j.agent.tool.JsonSchemaProperty

NUMBER - Static variable in class dev.langchain4j.agent.tool.JsonSchemaProperty

O

OBJECT - Static variable in class dev.langchain4j.agent.tool.JsonSchemaProperty

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.

OutputParser<T> - Interface in dev.langchain4j.model.output

outputTokenCount() - Method in class dev.langchain4j.model.output.TokenUsage

P

P - Annotation Type in dev.langchain4j.agent.tool

Parameter of a Tool

parameters(ToolParameters) - Method in class dev.langchain4j.agent.tool.ToolSpecification.Builder

parameters() - Method in class dev.langchain4j.agent.tool.ToolSpecification

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

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

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

properties(Map<String, Map<String, Object>>) - Method in class dev.langchain4j.agent.tool.ToolParameters.Builder

properties() - Method in class dev.langchain4j.agent.tool.ToolParameters

property(String, Object) - Static method in class dev.langchain4j.agent.tool.JsonSchemaProperty

Q

quoted(String) - Static method in class dev.langchain4j.internal.Utils

R

randomUUID() - Static method in class dev.langchain4j.internal.Utils

RelevanceScore - Class in dev.langchain4j.store.embedding

RelevanceScore() - Constructor for class dev.langchain4j.store.embedding.RelevanceScore

remove(String) - Method in class dev.langchain4j.data.document.Metadata

repeat(String, int) - Static method in class dev.langchain4j.internal.Utils

required(List<String>) - Method in class dev.langchain4j.agent.tool.ToolParameters.Builder

required() - Method in class dev.langchain4j.agent.tool.ToolParameters

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

Response(T, TokenUsage, FinishReason) - Constructor for class dev.langchain4j.model.output.Response

Retriever<T> - Interface in dev.langchain4j.retriever

RetryUtils - Class in dev.langchain4j.internal

RetryUtils() - Constructor for class dev.langchain4j.internal.RetryUtils

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.

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.

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

STRING - Static variable in class dev.langchain4j.agent.tool.JsonSchemaProperty

StructuredPrompt - Annotation Type in dev.langchain4j.model.input.structured

StructuredPromptProcessor - Class in dev.langchain4j.model.input.structured

StructuredPromptProcessor() - Constructor for class dev.langchain4j.model.input.structured.StructuredPromptProcessor

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

systemMessage(String) - Static method in class dev.langchain4j.data.message.SystemMessage

T

text() - Method in class dev.langchain4j.data.document.Document

text - Variable in class dev.langchain4j.data.message.ChatMessage

text() - Method in class dev.langchain4j.data.message.ChatMessage

text() - Method in class dev.langchain4j.data.segment.TextSegment

text() - Method in class dev.langchain4j.model.input.Prompt

TextClassifier<E extends Enum<E>> - Interface in dev.langchain4j.classification

Classifies given text according to specified enum.

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

textSegment(String) - Static method in class dev.langchain4j.data.segment.TextSegment

textSegment(String, Metadata) - Static method in class dev.langchain4j.data.segment.TextSegment

TextSegmentTransformer - Interface in dev.langchain4j.data.segment

Defines the interface for transforming a TextSegment.

toAiMessage() - Method in class dev.langchain4j.model.input.Prompt

toInputStream(Object, Class) - Static method in class dev.langchain4j.internal.Json

toJson(Object) - Static method in class dev.langchain4j.internal.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

tokenUsage() - Method in class dev.langchain4j.model.output.Response

TokenUsage - Class in dev.langchain4j.model.output

TokenUsage() - Constructor for class dev.langchain4j.model.output.TokenUsage

TokenUsage(Integer) - Constructor for class dev.langchain4j.model.output.TokenUsage

TokenUsage(Integer, Integer) - Constructor for class dev.langchain4j.model.output.TokenUsage

TokenUsage(Integer, Integer, Integer) - Constructor for class dev.langchain4j.model.output.TokenUsage

Tool - Annotation Type in dev.langchain4j.agent.tool

Java methods annotated with @Tool are considered tools that language model can use.

ToolExecutionRequest - Class in dev.langchain4j.agent.tool

toolExecutionRequest() - Method in class dev.langchain4j.data.message.AiMessage

ToolExecutionRequest.Builder - Class in dev.langchain4j.agent.tool

ToolExecutionResultMessage - Class in dev.langchain4j.data.message

Represents the result of a tool execution.

ToolExecutionResultMessage(String, String) - Constructor for class dev.langchain4j.data.message.ToolExecutionResultMessage

toolExecutionResultMessage(String, String) - Static method in class dev.langchain4j.data.message.ToolExecutionResultMessage

toolName() - Method in class dev.langchain4j.data.message.ToolExecutionResultMessage

ToolParameters - Class in dev.langchain4j.agent.tool

ToolParameters.Builder - Class in dev.langchain4j.agent.tool

ToolSpecification - Class in dev.langchain4j.agent.tool

ToolSpecification.Builder - Class in dev.langchain4j.agent.tool

toolSpecificationFrom(Method) - Static method in class dev.langchain4j.agent.tool.ToolSpecifications

ToolSpecifications - Class in dev.langchain4j.agent.tool

ToolSpecifications() - Constructor for class dev.langchain4j.agent.tool.ToolSpecifications

toolSpecificationsFrom(Object) - Static method in class dev.langchain4j.agent.tool.ToolSpecifications

toPrompt(Object) - Static method in class dev.langchain4j.model.input.structured.StructuredPromptProcessor

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.message.AiMessage

toString() - Method in class dev.langchain4j.data.message.SystemMessage

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.store.embedding.EmbeddingMatch

toSystemMessage() - Method in class dev.langchain4j.model.input.Prompt

totalTokenCount() - Method in class dev.langchain4j.model.output.TokenUsage

toTextSegment() - Method in class dev.langchain4j.data.document.Document

toUserMessage() - Method in class dev.langchain4j.model.input.Prompt

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.

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(String) - Static method in class dev.langchain4j.agent.tool.JsonSchemaProperty

type(String) - Method in class dev.langchain4j.agent.tool.ToolParameters.Builder

type() - Method in class dev.langchain4j.agent.tool.ToolParameters

type() - Method in class dev.langchain4j.data.message.AiMessage

type() - Method in class dev.langchain4j.data.message.ChatMessage

type() - Method in class dev.langchain4j.data.message.SystemMessage

type() - Method in class dev.langchain4j.data.message.ToolExecutionResultMessage

type() - Method in class dev.langchain4j.data.message.UserMessage

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 - Static variable in class dev.langchain4j.data.document.Document

UserMessage - Class in dev.langchain4j.data.message

Represents a message from a user, typically an end user of the application.

UserMessage(String) - Constructor for class dev.langchain4j.data.message.UserMessage

UserMessage(String, String) - Constructor for class dev.langchain4j.data.message.UserMessage

userMessage(String) - Static method in class dev.langchain4j.data.message.UserMessage

userMessage(String, String) - Static method in class dev.langchain4j.data.message.UserMessage

Utils - Class in dev.langchain4j.internal

Utils() - Constructor for class dev.langchain4j.internal.Utils

V

ValidationUtils - Class in dev.langchain4j.internal

ValidationUtils() - Constructor for class dev.langchain4j.internal.ValidationUtils

value() - Method in class dev.langchain4j.agent.tool.JsonSchemaProperty

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.model.output.FinishReason

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.model.output.FinishReason

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

vectorAsList() - Method in class dev.langchain4j.data.embedding.Embedding

W

WillChangeSoon - Annotation Type in dev.langchain4j

Indicates that a class/constructor/method is planned to change soon.

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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