Index

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

A

add(Embedding) - Method in class dev.langchain4j.store.embedding.inmemory.InMemoryEmbeddingStore

add(Embedding, Embedded) - Method in class dev.langchain4j.store.embedding.inmemory.InMemoryEmbeddingStore

add(ChatMessage) - Method in class dev.langchain4j.memory.chat.MessageWindowChatMemory

add(ChatMessage) - Method in class dev.langchain4j.memory.chat.TokenWindowChatMemory

add(String, Embedding) - Method in class dev.langchain4j.store.embedding.inmemory.InMemoryEmbeddingStore

add(String, Embedding, Embedded) - Method in class dev.langchain4j.store.embedding.inmemory.InMemoryEmbeddingStore

addAll(List<Embedding>) - Method in class dev.langchain4j.store.embedding.inmemory.InMemoryEmbeddingStore

addAll(List<Embedding>, List<Embedded>) - Method in class dev.langchain4j.store.embedding.inmemory.InMemoryEmbeddingStore

aiServiceClass - Variable in class dev.langchain4j.service.AiServiceContext

AiServiceContext - Class in dev.langchain4j.service

AiServiceContext(Class<?>) - Constructor for class dev.langchain4j.service.AiServiceContext

AiServices<T> - Class in dev.langchain4j.service

AI Services provide a simpler and more flexible alternative to chains.

AiServices(AiServiceContext) - Constructor for class dev.langchain4j.service.AiServices

AiServicesFactory - Interface in dev.langchain4j.spi.services

AiServiceTokenStream - Class in dev.langchain4j.service

AiServiceTokenStream(List<ChatMessage>, AiServiceContext, Object) - Constructor for class dev.langchain4j.service.AiServiceTokenStream

B

BigDecimalOutputParser - Class in dev.langchain4j.model.output

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

BigIntegerOutputParser - Class in dev.langchain4j.model.output

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

BooleanOutputParser - Class in dev.langchain4j.model.output

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

build() - Method in class dev.langchain4j.chain.ConversationalRetrievalChain.Builder

build() - Method in class dev.langchain4j.memory.chat.MessageWindowChatMemory.Builder

build() - Method in class dev.langchain4j.memory.chat.TokenWindowChatMemory.Builder

build() - Method in class dev.langchain4j.service.AiServices

Constructs and returns the AI Service.

builder() - Static method in class dev.langchain4j.chain.ConversationalRetrievalChain

builder() - Static method in class dev.langchain4j.memory.chat.MessageWindowChatMemory

builder() - Static method in class dev.langchain4j.memory.chat.TokenWindowChatMemory

builder(Class<T>) - Static method in class dev.langchain4j.service.AiServices

Begins the construction of an AI Service.

Builder() - Constructor for class dev.langchain4j.chain.ConversationalRetrievalChain.Builder

Builder() - Constructor for class dev.langchain4j.memory.chat.MessageWindowChatMemory.Builder

Builder() - Constructor for class dev.langchain4j.memory.chat.TokenWindowChatMemory.Builder

ByteOutputParser - Class in dev.langchain4j.model.output

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

C

chatLanguageModel(ChatLanguageModel) - Method in class dev.langchain4j.chain.ConversationalRetrievalChain.Builder

chatLanguageModel(ChatLanguageModel) - Method in class dev.langchain4j.service.AiServices

Configures chat model that will be used under the hood of the AI Service.

chatMemories - Variable in class dev.langchain4j.service.AiServiceContext

chatMemory(ChatMemory) - Method in class dev.langchain4j.chain.ConversationalRetrievalChain.Builder

chatMemory(ChatMemory) - Method in class dev.langchain4j.service.AiServices

Configures the chat memory that will be used to preserve conversation history between method calls.

chatMemory(Object) - Method in class dev.langchain4j.service.AiServiceContext

chatMemoryProvider - Variable in class dev.langchain4j.service.AiServiceContext

chatMemoryProvider(ChatMemoryProvider) - Method in class dev.langchain4j.service.AiServices

Configures the chat memory provider, which provides a dedicated instance of ChatMemory for each user/conversation.

ChatMemoryProvider - Interface in dev.langchain4j.memory.chat

Provides instances of ChatMemory.

chatMemoryStore(ChatMemoryStore) - Method in class dev.langchain4j.memory.chat.MessageWindowChatMemory.Builder

chatMemoryStore(ChatMemoryStore) - Method in class dev.langchain4j.memory.chat.TokenWindowChatMemory.Builder

chatModel - Variable in class dev.langchain4j.service.AiServiceContext

classify(String) - Method in class dev.langchain4j.classification.EmbeddingModelTextClassifier

clear() - Method in class dev.langchain4j.memory.chat.MessageWindowChatMemory

clear() - Method in class dev.langchain4j.memory.chat.TokenWindowChatMemory

contentRetriever(ContentRetriever) - Method in class dev.langchain4j.chain.ConversationalRetrievalChain.Builder

contentRetriever(ContentRetriever) - Method in class dev.langchain4j.service.AiServices

Configures a content retriever to be invoked on every method call for retrieving relevant content related to the user's message from an underlying data source (e.g., an embedding store in the case of an EmbeddingStoreContentRetriever).

context - Variable in class dev.langchain4j.service.AiServices

ConversationalChain - Class in dev.langchain4j.chain

A chain for conversing with a specified ChatLanguageModel while maintaining a memory of the conversation.

ConversationalRetrievalChain - Class in dev.langchain4j.chain

A chain for conversing with a specified ChatLanguageModel based on the information retrieved by a specified ContentRetriever.

ConversationalRetrievalChain(ChatLanguageModel, ChatMemory, PromptTemplate, Retriever<TextSegment>) - Constructor for class dev.langchain4j.chain.ConversationalRetrievalChain

Deprecated.

ConversationalRetrievalChain(ChatLanguageModel, ChatMemory, ContentRetriever) - Constructor for class dev.langchain4j.chain.ConversationalRetrievalChain

ConversationalRetrievalChain(ChatLanguageModel, ChatMemory, RetrievalAugmentor) - Constructor for class dev.langchain4j.chain.ConversationalRetrievalChain

ConversationalRetrievalChain.Builder - Class in dev.langchain4j.chain

create() - Method in interface dev.langchain4j.spi.store.embedding.inmemory.InMemoryEmbeddingStoreJsonCodecFactory

create(AiServiceContext) - Method in interface dev.langchain4j.spi.services.AiServicesFactory

create(Class<T>, ChatLanguageModel) - Static method in class dev.langchain4j.service.AiServices

Creates an AI Service (an implementation of the provided interface), that is backed by the provided chat model.

create(Class<T>, StreamingChatLanguageModel) - Static method in class dev.langchain4j.service.AiServices

Creates an AI Service (an implementation of the provided interface), that is backed by the provided streaming chat model.

D

DateOutputParser - Class in dev.langchain4j.model.output

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

DEFAULT - Static variable in class dev.langchain4j.service.AiServices

defaultSubSplitter() - Method in class dev.langchain4j.data.document.splitter.DocumentByCharacterSplitter

defaultSubSplitter() - Method in class dev.langchain4j.data.document.splitter.DocumentByLineSplitter

defaultSubSplitter() - Method in class dev.langchain4j.data.document.splitter.DocumentByParagraphSplitter

defaultSubSplitter() - Method in class dev.langchain4j.data.document.splitter.DocumentByRegexSplitter

defaultSubSplitter() - Method in class dev.langchain4j.data.document.splitter.DocumentBySentenceSplitter

defaultSubSplitter() - Method in class dev.langchain4j.data.document.splitter.DocumentByWordSplitter

defaultSubSplitter() - Method in class dev.langchain4j.data.document.splitter.HierarchicalDocumentSplitter

The default sub-splitter to use when a single segment is too long.

DefaultToolExecutor - Class in dev.langchain4j.agent.tool

DefaultToolExecutor(Object, Method) - Constructor for class dev.langchain4j.agent.tool.DefaultToolExecutor

delimiter() - Element in annotation type dev.langchain4j.service.SystemMessage

delimiter() - Element in annotation type dev.langchain4j.service.UserMessage

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.loader - package dev.langchain4j.data.document.loader

dev.langchain4j.data.document.parser - package dev.langchain4j.data.document.parser

dev.langchain4j.data.document.source - package dev.langchain4j.data.document.source

dev.langchain4j.data.document.splitter - package dev.langchain4j.data.document.splitter

dev.langchain4j.data.document.transformer - package dev.langchain4j.data.document.transformer

dev.langchain4j.exception - package dev.langchain4j.exception

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

dev.langchain4j.model.output - package dev.langchain4j.model.output

dev.langchain4j.retriever - package dev.langchain4j.retriever

dev.langchain4j.service - package dev.langchain4j.service

dev.langchain4j.spi.services - package dev.langchain4j.spi.services

dev.langchain4j.spi.store.embedding.inmemory - package dev.langchain4j.spi.store.embedding.inmemory

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

DocumentByCharacterSplitter - Class in dev.langchain4j.data.document.splitter

Splits the provided Document into characters and attempts to fit as many characters as possible into a single TextSegment, adhering to the limit set by maxSegmentSize.

DocumentByCharacterSplitter(int, int) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByCharacterSplitter

DocumentByCharacterSplitter(int, int, DocumentSplitter) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByCharacterSplitter

DocumentByCharacterSplitter(int, int, Tokenizer) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByCharacterSplitter

DocumentByCharacterSplitter(int, int, Tokenizer, DocumentSplitter) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByCharacterSplitter

DocumentByLineSplitter - Class in dev.langchain4j.data.document.splitter

Splits the provided Document into lines and attempts to fit as many lines as possible into a single TextSegment, adhering to the limit set by maxSegmentSize.

DocumentByLineSplitter(int, int) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByLineSplitter

DocumentByLineSplitter(int, int, DocumentSplitter) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByLineSplitter

DocumentByLineSplitter(int, int, Tokenizer) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByLineSplitter

DocumentByLineSplitter(int, int, Tokenizer, DocumentSplitter) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByLineSplitter

DocumentByParagraphSplitter - Class in dev.langchain4j.data.document.splitter

Splits the provided Document into paragraphs and attempts to fit as many paragraphs as possible into a single TextSegment, adhering to the limit set by maxSegmentSize.

DocumentByParagraphSplitter(int, int) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByParagraphSplitter

DocumentByParagraphSplitter(int, int, DocumentSplitter) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByParagraphSplitter

DocumentByParagraphSplitter(int, int, Tokenizer) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByParagraphSplitter

DocumentByParagraphSplitter(int, int, Tokenizer, DocumentSplitter) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByParagraphSplitter

DocumentByRegexSplitter - Class in dev.langchain4j.data.document.splitter

Splits the provided Document into parts using the provided regex and attempts to fit as many parts as possible into a single TextSegment, adhering to the limit set by maxSegmentSize.

DocumentByRegexSplitter(String, String, int, int) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByRegexSplitter

DocumentByRegexSplitter(String, String, int, int, DocumentSplitter) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByRegexSplitter

DocumentByRegexSplitter(String, String, int, int, Tokenizer) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByRegexSplitter

DocumentByRegexSplitter(String, String, int, int, Tokenizer, DocumentSplitter) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByRegexSplitter

DocumentBySentenceSplitter - Class in dev.langchain4j.data.document.splitter

Splits the provided Document into sentences and attempts to fit as many sentences as possible into a single TextSegment, adhering to the limit set by maxSegmentSize.

DocumentBySentenceSplitter(int, int) - Constructor for class dev.langchain4j.data.document.splitter.DocumentBySentenceSplitter

DocumentBySentenceSplitter(int, int, DocumentSplitter) - Constructor for class dev.langchain4j.data.document.splitter.DocumentBySentenceSplitter

DocumentBySentenceSplitter(int, int, Tokenizer) - Constructor for class dev.langchain4j.data.document.splitter.DocumentBySentenceSplitter

DocumentBySentenceSplitter(int, int, Tokenizer, DocumentSplitter) - Constructor for class dev.langchain4j.data.document.splitter.DocumentBySentenceSplitter

DocumentByWordSplitter - Class in dev.langchain4j.data.document.splitter

Splits the provided Document into words and attempts to fit as many words as possible into a single TextSegment, adhering to the limit set by maxSegmentSize.

DocumentByWordSplitter(int, int) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByWordSplitter

DocumentByWordSplitter(int, int, DocumentSplitter) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByWordSplitter

DocumentByWordSplitter(int, int, Tokenizer) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByWordSplitter

DocumentByWordSplitter(int, int, Tokenizer, DocumentSplitter) - Constructor for class dev.langchain4j.data.document.splitter.DocumentByWordSplitter

DocumentSplitters - Class in dev.langchain4j.data.document.splitter

DocumentSplitters() - Constructor for class dev.langchain4j.data.document.splitter.DocumentSplitters

DoubleOutputParser - Class in dev.langchain4j.model.output

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

E

EmbeddingModelTextClassifier<E> - Class in dev.langchain4j.classification

A TextClassifier that uses an EmbeddingModel and predefined examples to perform classification.

EmbeddingModelTextClassifier(EmbeddingModel, Map<E, ? extends Collection<String>>) - Constructor for class dev.langchain4j.classification.EmbeddingModelTextClassifier

Creates a classifier with the default values for EmbeddingModelTextClassifier.maxResults (1), EmbeddingModelTextClassifier.minScore (0) and EmbeddingModelTextClassifier.meanToMaxScoreRatio (0.5).

EmbeddingModelTextClassifier(EmbeddingModel, Map<E, ? extends Collection<String>>, int, double, double) - Constructor for class dev.langchain4j.classification.EmbeddingModelTextClassifier

Creates a classifier.

EmbeddingStoreRetriever - Class in dev.langchain4j.retriever

EmbeddingStoreRetriever(EmbeddingStore<TextSegment>, EmbeddingModel, int, Double) - Constructor for class dev.langchain4j.retriever.EmbeddingStoreRetriever

EnumOutputParser - Class in dev.langchain4j.model.output

EnumOutputParser(Class<? extends Enum>) - Constructor for class dev.langchain4j.model.output.EnumOutputParser

execute(ToolExecutionRequest, Object) - Method in class dev.langchain4j.agent.tool.DefaultToolExecutor

execute(ToolExecutionRequest, Object) - Method in interface dev.langchain4j.agent.tool.ToolExecutor

execute(String) - Method in class dev.langchain4j.chain.ConversationalChain

execute(String) - Method in class dev.langchain4j.chain.ConversationalRetrievalChain

executeJavaScriptCode(String) - Method in class dev.langchain4j.code.Judge0JavaScriptExecutionTool

F

FileSystemDocumentLoader - Class in dev.langchain4j.data.document.loader

FileSystemSource - Class in dev.langchain4j.data.document.source

FileSystemSource(Path) - Constructor for class dev.langchain4j.data.document.source.FileSystemSource

findRelevant(String) - Method in class dev.langchain4j.retriever.EmbeddingStoreRetriever

FloatOutputParser - Class in dev.langchain4j.model.output

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

formatInstructions() - Method in class dev.langchain4j.model.output.BigDecimalOutputParser

formatInstructions() - Method in class dev.langchain4j.model.output.BigIntegerOutputParser

formatInstructions() - Method in class dev.langchain4j.model.output.BooleanOutputParser

formatInstructions() - Method in class dev.langchain4j.model.output.ByteOutputParser

formatInstructions() - Method in class dev.langchain4j.model.output.DateOutputParser

formatInstructions() - Method in class dev.langchain4j.model.output.DoubleOutputParser

formatInstructions() - Method in class dev.langchain4j.model.output.EnumOutputParser

formatInstructions() - Method in class dev.langchain4j.model.output.FloatOutputParser

formatInstructions() - Method in class dev.langchain4j.model.output.IntOutputParser

formatInstructions() - Method in class dev.langchain4j.model.output.LocalDateOutputParser

formatInstructions() - Method in class dev.langchain4j.model.output.LocalDateTimeOutputParser

formatInstructions() - Method in class dev.langchain4j.model.output.LocalTimeOutputParser

formatInstructions() - Method in class dev.langchain4j.model.output.LongOutputParser

formatInstructions() - Method in class dev.langchain4j.model.output.ShortOutputParser

from(EmbeddingStore<TextSegment>, EmbeddingModel) - Static method in class dev.langchain4j.retriever.EmbeddingStoreRetriever

from(EmbeddingStore<TextSegment>, EmbeddingModel, int) - Static method in class dev.langchain4j.retriever.EmbeddingStoreRetriever

from(EmbeddingStore<TextSegment>, EmbeddingModel, int, double) - Static method in class dev.langchain4j.retriever.EmbeddingStoreRetriever

from(File) - Static method in class dev.langchain4j.data.document.source.FileSystemSource

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

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

from(URI) - Static method in class dev.langchain4j.data.document.source.FileSystemSource

from(URI) - Static method in class dev.langchain4j.data.document.source.UrlSource

from(URL) - Static method in class dev.langchain4j.data.document.source.UrlSource

from(Path) - Static method in class dev.langchain4j.data.document.source.FileSystemSource

fromFile(String) - Static method in class dev.langchain4j.store.embedding.inmemory.InMemoryEmbeddingStore

fromFile(Path) - Static method in class dev.langchain4j.store.embedding.inmemory.InMemoryEmbeddingStore

fromJson(String) - Method in class dev.langchain4j.store.embedding.inmemory.GsonInMemoryEmbeddingStoreJsonCodec

fromJson(String) - Static method in class dev.langchain4j.store.embedding.inmemory.InMemoryEmbeddingStore

fromJson(String) - Method in interface dev.langchain4j.store.embedding.inmemory.InMemoryEmbeddingStoreJsonCodec

fromResource() - Element in annotation type dev.langchain4j.service.SystemMessage

The resource from which to read the prompt template.

fromResource() - Element in annotation type dev.langchain4j.service.UserMessage

The resource from which to read the prompt template.

G

get(Object) - Method in interface dev.langchain4j.memory.chat.ChatMemoryProvider

Provides an instance of ChatMemory.

GsonInMemoryEmbeddingStoreJsonCodec - Class in dev.langchain4j.store.embedding.inmemory

GsonInMemoryEmbeddingStoreJsonCodec() - Constructor for class dev.langchain4j.store.embedding.inmemory.GsonInMemoryEmbeddingStoreJsonCodec

H

hasChatMemory() - Method in class dev.langchain4j.service.AiServiceContext

HierarchicalDocumentSplitter - Class in dev.langchain4j.data.document.splitter

Base class for hierarchical document splitters.

HierarchicalDocumentSplitter(int, int) - Constructor for class dev.langchain4j.data.document.splitter.HierarchicalDocumentSplitter

Creates a new instance of HierarchicalDocumentSplitter.

HierarchicalDocumentSplitter(int, int, HierarchicalDocumentSplitter) - Constructor for class dev.langchain4j.data.document.splitter.HierarchicalDocumentSplitter

Creates a new instance of HierarchicalDocumentSplitter.

HierarchicalDocumentSplitter(int, int, Tokenizer) - Constructor for class dev.langchain4j.data.document.splitter.HierarchicalDocumentSplitter

Creates a new instance of HierarchicalDocumentSplitter.

HierarchicalDocumentSplitter(int, int, Tokenizer, DocumentSplitter) - Constructor for class dev.langchain4j.data.document.splitter.HierarchicalDocumentSplitter

Creates a new instance of HierarchicalDocumentSplitter.

HtmlTextExtractor - Class in dev.langchain4j.data.document.transformer

Extracts text from a given HTML document.

HtmlTextExtractor() - Constructor for class dev.langchain4j.data.document.transformer.HtmlTextExtractor

Constructs an instance of HtmlToTextTransformer that extracts all text from a given Document containing HTML.

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

Constructs an instance of HtmlToTextTransformer that extracts text from HTML elements matching the provided CSS selector.

I

id() - Method in class dev.langchain4j.memory.chat.MessageWindowChatMemory

id() - Method in class dev.langchain4j.memory.chat.TokenWindowChatMemory

id(Object) - Method in class dev.langchain4j.memory.chat.MessageWindowChatMemory.Builder

id(Object) - Method in class dev.langchain4j.memory.chat.TokenWindowChatMemory.Builder

ignoreErrors() - Method in interface dev.langchain4j.service.OnCompleteOrOnError

All errors during streaming will be ignored (but will be logged with a WARN log level).

ignoreErrors() - Method in interface dev.langchain4j.service.OnError

All errors during streaming will be ignored (but will be logged with a WARN log level).

illegalConfiguration(String) - Static method in exception class dev.langchain4j.exception.IllegalConfigurationException

illegalConfiguration(String, Object...) - Static method in exception class dev.langchain4j.exception.IllegalConfigurationException

IllegalConfigurationException - Exception Class in dev.langchain4j.exception

IllegalConfigurationException(String) - Constructor for exception class dev.langchain4j.exception.IllegalConfigurationException

InMemoryEmbeddingStore<Embedded> - Class in dev.langchain4j.store.embedding.inmemory

An EmbeddingStore that stores embeddings in memory.

InMemoryEmbeddingStore() - Constructor for class dev.langchain4j.store.embedding.inmemory.InMemoryEmbeddingStore

InMemoryEmbeddingStoreJsonCodec - Interface in dev.langchain4j.store.embedding.inmemory

InMemoryEmbeddingStoreJsonCodecFactory - Interface in dev.langchain4j.spi.store.embedding.inmemory

inputStream() - Method in class dev.langchain4j.data.document.source.FileSystemSource

inputStream() - Method in class dev.langchain4j.data.document.source.UrlSource

IntOutputParser - Class in dev.langchain4j.model.output

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

J

joinDelimiter() - Method in class dev.langchain4j.data.document.splitter.DocumentByCharacterSplitter

joinDelimiter() - Method in class dev.langchain4j.data.document.splitter.DocumentByLineSplitter

joinDelimiter() - Method in class dev.langchain4j.data.document.splitter.DocumentByParagraphSplitter

joinDelimiter() - Method in class dev.langchain4j.data.document.splitter.DocumentByRegexSplitter

joinDelimiter() - Method in class dev.langchain4j.data.document.splitter.DocumentBySentenceSplitter

joinDelimiter() - Method in class dev.langchain4j.data.document.splitter.DocumentByWordSplitter

joinDelimiter() - Method in class dev.langchain4j.data.document.splitter.HierarchicalDocumentSplitter

Delimiter string to use to re-join the parts.

Judge0JavaScriptExecutionTool - Class in dev.langchain4j.code

A tool that executes JS code using the Judge0 service, hosted by Rapid API.

Judge0JavaScriptExecutionTool(String) - Constructor for class dev.langchain4j.code.Judge0JavaScriptExecutionTool

Constructs a new instance with the provided Rapid API key.

Judge0JavaScriptExecutionTool(String, boolean, Duration) - Constructor for class dev.langchain4j.code.Judge0JavaScriptExecutionTool

Constructs a new instance with the provided Rapid API key, a flag to control whether to fix the code, and a timeout.

L

load(String, DocumentParser) - Static method in class dev.langchain4j.data.document.loader.UrlDocumentLoader

Loads a document from the specified URL.

load(URL, DocumentParser) - Static method in class dev.langchain4j.data.document.loader.UrlDocumentLoader

Loads a document from the specified URL.

loadDocument(String) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Loads a Document from the specified file path.

loadDocument(String, DocumentParser) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Loads a Document from the specified file path.

loadDocument(Path) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Loads a Document from the specified file Path.

loadDocument(Path, DocumentParser) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Loads a Document from the specified file Path.

loadDocuments(String) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Loads Documents from the specified directory.

loadDocuments(String, DocumentParser) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Loads Documents from the specified directory.

loadDocuments(String, PathMatcher) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Loads matching Documents from the specified directory.

loadDocuments(String, PathMatcher, DocumentParser) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Loads matching Documents from the specified directory.

loadDocuments(Path) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Loads Documents from the specified directory.

loadDocuments(Path, DocumentParser) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Loads Documents from the specified directory.

loadDocuments(Path, PathMatcher) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Loads matching Documents from the specified directory.

loadDocuments(Path, PathMatcher, DocumentParser) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Loads matching Documents from the specified directory.

loadDocumentsRecursively(String) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Recursively loads Documents from the specified directory and its subdirectories.

loadDocumentsRecursively(String, DocumentParser) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Recursively loads Documents from the specified directory and its subdirectories.

loadDocumentsRecursively(String, PathMatcher) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Recursively loads matching Documents from the specified directory and its subdirectories.

loadDocumentsRecursively(String, PathMatcher, DocumentParser) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Recursively loads matching Documents from the specified directory and its subdirectories.

loadDocumentsRecursively(Path) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Recursively loads Documents from the specified directory and its subdirectories.

loadDocumentsRecursively(Path, DocumentParser) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Recursively loads Documents from the specified directory and its subdirectories.

loadDocumentsRecursively(Path, PathMatcher) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Recursively loads matching Documents from the specified directory and its subdirectories.

loadDocumentsRecursively(Path, PathMatcher, DocumentParser) - Static method in class dev.langchain4j.data.document.loader.FileSystemDocumentLoader

Recursively loads matching Documents from the specified directory and its subdirectories.

LocalDateOutputParser - Class in dev.langchain4j.model.output

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

LocalDateTimeOutputParser - Class in dev.langchain4j.model.output

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

LocalTimeOutputParser - Class in dev.langchain4j.model.output

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

LongOutputParser - Class in dev.langchain4j.model.output

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

M

maxMessages(Integer) - Method in class dev.langchain4j.memory.chat.MessageWindowChatMemory.Builder

maxOverlapSize - Variable in class dev.langchain4j.data.document.splitter.HierarchicalDocumentSplitter

maxSegmentSize - Variable in class dev.langchain4j.data.document.splitter.HierarchicalDocumentSplitter

maxTokens(Integer, Tokenizer) - Method in class dev.langchain4j.memory.chat.TokenWindowChatMemory.Builder

MemoryId - Annotation Type in dev.langchain4j.service

The value of a method parameter annotated with @MemoryId will be used to find the memory belonging to that user/conversation.

messages() - Method in class dev.langchain4j.memory.chat.MessageWindowChatMemory

messages() - Method in class dev.langchain4j.memory.chat.TokenWindowChatMemory

MessageWindowChatMemory - Class in dev.langchain4j.memory.chat

This chat memory operates as a sliding window of MessageWindowChatMemory.maxMessages messages.

MessageWindowChatMemory.Builder - Class in dev.langchain4j.memory.chat

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

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

Moderate - Annotation Type in dev.langchain4j.service

When a method in the AI Service is annotated with @Moderate, each invocation of this method will call not only the LLM, but also the moderation model (which must be provided during the construction of the AI Service) in parallel.

ModerationException - Exception Class in dev.langchain4j.service

Thrown when content moderation fails, i.e., when content is flagged by the moderation model.

ModerationException(String) - Constructor for exception class dev.langchain4j.service.ModerationException

moderationModel - Variable in class dev.langchain4j.service.AiServiceContext

moderationModel(ModerationModel) - Method in class dev.langchain4j.service.AiServices

Configures a moderation model to be used for automatic content moderation.

O

onComplete(Consumer<Response<AiMessage>>) - Method in interface dev.langchain4j.service.OnCompleteOrOnError

The provided consumer will be invoked when a language model finishes streaming a response.

OnCompleteOrOnError - Interface in dev.langchain4j.service

onError(Consumer<Throwable>) - Method in interface dev.langchain4j.service.OnCompleteOrOnError

The provided consumer will be invoked when an error occurs during streaming.

onError(Consumer<Throwable>) - Method in interface dev.langchain4j.service.OnError

The provided Consumer will be invoked when an error occurs during streaming.

OnError - Interface in dev.langchain4j.service

onNext(Consumer<String>) - Method in class dev.langchain4j.service.AiServiceTokenStream

onNext(Consumer<String>) - Method in interface dev.langchain4j.service.TokenStream

The provided consumer will be invoked every time a new token from a language model is available.

OnStart - Interface in dev.langchain4j.service

outputFormatInstructions(Class<?>) - Static method in class dev.langchain4j.service.ServiceOutputParser

P

parse(Response<AiMessage>, Class<?>) - Static method in class dev.langchain4j.service.ServiceOutputParser

parse(InputStream) - Method in class dev.langchain4j.data.document.parser.TextDocumentParser

parse(String) - Method in class dev.langchain4j.model.output.BigDecimalOutputParser

parse(String) - Method in class dev.langchain4j.model.output.BigIntegerOutputParser

parse(String) - Method in class dev.langchain4j.model.output.BooleanOutputParser

parse(String) - Method in class dev.langchain4j.model.output.ByteOutputParser

parse(String) - Method in class dev.langchain4j.model.output.DateOutputParser

parse(String) - Method in class dev.langchain4j.model.output.DoubleOutputParser

parse(String) - Method in class dev.langchain4j.model.output.EnumOutputParser

parse(String) - Method in class dev.langchain4j.model.output.FloatOutputParser

parse(String) - Method in class dev.langchain4j.model.output.IntOutputParser

parse(String) - Method in class dev.langchain4j.model.output.LocalDateOutputParser

parse(String) - Method in class dev.langchain4j.model.output.LocalDateTimeOutputParser

parse(String) - Method in class dev.langchain4j.model.output.LocalTimeOutputParser

parse(String) - Method in class dev.langchain4j.model.output.LongOutputParser

parse(String) - Method in class dev.langchain4j.model.output.ShortOutputParser

path - Variable in class dev.langchain4j.data.document.source.FileSystemSource

performBasicValidation() - Method in class dev.langchain4j.service.AiServices

promptTemplate(PromptTemplate) - Method in class dev.langchain4j.chain.ConversationalRetrievalChain.Builder

Deprecated.

R

recursive(int, int) - Static method in class dev.langchain4j.data.document.splitter.DocumentSplitters

This is a recommended DocumentSplitter for generic text.

recursive(int, int, Tokenizer) - Static method in class dev.langchain4j.data.document.splitter.DocumentSplitters

This is a recommended DocumentSplitter for generic text.

removeToolMessages(List<ChatMessage>) - Static method in class dev.langchain4j.service.AiServices

retrievalAugmentor - Variable in class dev.langchain4j.service.AiServiceContext

retrievalAugmentor(RetrievalAugmentor) - Method in class dev.langchain4j.chain.ConversationalRetrievalChain.Builder

retrievalAugmentor(RetrievalAugmentor) - Method in class dev.langchain4j.service.AiServices

Configures a retrieval augmentor to be invoked on every method call.

retriever(Retriever<TextSegment>) - Method in class dev.langchain4j.chain.ConversationalRetrievalChain.Builder

Deprecated.

retriever(Retriever<TextSegment>) - Method in class dev.langchain4j.service.AiServices

Deprecated.

S

search(EmbeddingSearchRequest) - Method in class dev.langchain4j.store.embedding.inmemory.InMemoryEmbeddingStore

serializeToFile(String) - Method in class dev.langchain4j.store.embedding.inmemory.InMemoryEmbeddingStore

serializeToFile(Path) - Method in class dev.langchain4j.store.embedding.inmemory.InMemoryEmbeddingStore

serializeToJson() - Method in class dev.langchain4j.store.embedding.inmemory.InMemoryEmbeddingStore

ServiceOutputParser - Class in dev.langchain4j.service

ServiceOutputParser() - Constructor for class dev.langchain4j.service.ServiceOutputParser

ShortOutputParser - Class in dev.langchain4j.model.output

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

split(Document) - Method in class dev.langchain4j.data.document.splitter.HierarchicalDocumentSplitter

split(String) - Method in class dev.langchain4j.data.document.splitter.DocumentByCharacterSplitter

split(String) - Method in class dev.langchain4j.data.document.splitter.DocumentByLineSplitter

split(String) - Method in class dev.langchain4j.data.document.splitter.DocumentByParagraphSplitter

split(String) - Method in class dev.langchain4j.data.document.splitter.DocumentByRegexSplitter

split(String) - Method in class dev.langchain4j.data.document.splitter.DocumentBySentenceSplitter

split(String) - Method in class dev.langchain4j.data.document.splitter.DocumentByWordSplitter

split(String) - Method in class dev.langchain4j.data.document.splitter.HierarchicalDocumentSplitter

Splits the provided text into parts.

start() - Method in interface dev.langchain4j.service.OnStart

Invoke this method to send a request to LLM and start response streaming.

streamingChatLanguageModel(StreamingChatLanguageModel) - Method in class dev.langchain4j.service.AiServices

Configures streaming chat model that will be used under the hood of the AI Service.

streamingChatModel - Variable in class dev.langchain4j.service.AiServiceContext

subSplitter - Variable in class dev.langchain4j.data.document.splitter.HierarchicalDocumentSplitter

SystemMessage - Annotation Type in dev.langchain4j.service

T

TextDocumentParser - Class in dev.langchain4j.data.document.parser

TextDocumentParser() - Constructor for class dev.langchain4j.data.document.parser.TextDocumentParser

TextDocumentParser(Charset) - Constructor for class dev.langchain4j.data.document.parser.TextDocumentParser

toJson(InMemoryEmbeddingStore<?>) - Method in class dev.langchain4j.store.embedding.inmemory.GsonInMemoryEmbeddingStoreJsonCodec

toJson(InMemoryEmbeddingStore<?>) - Method in interface dev.langchain4j.store.embedding.inmemory.InMemoryEmbeddingStoreJsonCodec

tokenizer - Variable in class dev.langchain4j.data.document.splitter.HierarchicalDocumentSplitter

TokenStream - Interface in dev.langchain4j.service

Represents a token stream from language model to which you can subscribe and receive updates when a new token is available, when language model finishes streaming, or when an error occurs during streaming.

TokenWindowChatMemory - Class in dev.langchain4j.memory.chat

This chat memory operates as a sliding window of TokenWindowChatMemory.maxTokens tokens.

TokenWindowChatMemory.Builder - Class in dev.langchain4j.memory.chat

ToolExecutor - Interface in dev.langchain4j.agent.tool

toolExecutors - Variable in class dev.langchain4j.service.AiServiceContext

tools(Object...) - Method in class dev.langchain4j.service.AiServices

Configures the tools that the LLM can use.

tools(List<Object>) - Method in class dev.langchain4j.service.AiServices

Configures the tools that the LLM can use.

toolSpecifications - Variable in class dev.langchain4j.service.AiServiceContext

transform(Document) - Method in class dev.langchain4j.data.document.transformer.HtmlTextExtractor

U

UrlDocumentLoader - Class in dev.langchain4j.data.document.loader

UrlDocumentLoader() - Constructor for class dev.langchain4j.data.document.loader.UrlDocumentLoader

UrlSource - Class in dev.langchain4j.data.document.source

UrlSource(URL) - Constructor for class dev.langchain4j.data.document.source.UrlSource

UserMessage - Annotation Type in dev.langchain4j.service

UserName - Annotation Type in dev.langchain4j.service

The value of a method parameter annotated with @UserName will be injected into the field 'name' of a UserMessage.

V

V - Annotation Type in dev.langchain4j.service

The values of method parameters annotated with @V, together with prompt templates defined by @UserMessage and @SystemMessage, are used to produce a message that will be sent to the LLM.

value() - Element in annotation type dev.langchain4j.service.SystemMessage

Prompt template can be defined in one line or multiple lines.

value() - Element in annotation type dev.langchain4j.service.UserMessage

Prompt template can be defined in one line or multiple lines.

value() - Element in annotation type dev.langchain4j.service.V

Name of a variable (placeholder) in a prompt template.

verifyModerationIfNeeded(Future<Moderation>) - Static method in class dev.langchain4j.service.AiServices

W

withMaxMessages(int) - Static method in class dev.langchain4j.memory.chat.MessageWindowChatMemory

withMaxTokens(int, Tokenizer) - Static method in class dev.langchain4j.memory.chat.TokenWindowChatMemory

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