Package dev.langchain4j.community.chain

Class RetrievalQAChain

java.lang.Object

dev.langchain4j.community.chain.RetrievalQAChain

All Implemented Interfaces:

dev.langchain4j.chain.Chain<dev.langchain4j.rag.query.Query,String>

@Experimental
public class RetrievalQAChain
extends Object
implements dev.langchain4j.chain.Chain<dev.langchain4j.rag.query.Query,String>

A conversational chain that interacts with a specified ChatModel, using an initial UserMessage generated by a RetrievalAugmentor.

This chain is typically used in retrieval-augmented generation (RAG) workflows, where relevant context is retrieved and injected into the conversation before invoking the chat model.

Since:

1.1.0-beta7

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	RetrievalQAChain.Builder

Constructor Summary

Constructors

Constructor	Description
RetrievalQAChain(dev.langchain4j.model.chat.ChatModel chatModel, dev.langchain4j.rag.RetrievalAugmentor retrievalAugmentor)

Method Summary

Modifier and Type	Method	Description
static RetrievalQAChain.Builder	builder()
String	execute(dev.langchain4j.rag.query.Query query)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

RetrievalQAChain

public RetrievalQAChain(dev.langchain4j.model.chat.ChatModel chatModel,
 dev.langchain4j.rag.RetrievalAugmentor retrievalAugmentor)

Method Details

execute

public String execute(dev.langchain4j.rag.query.Query query)

Specified by:

execute in interface dev.langchain4j.chain.Chain<dev.langchain4j.rag.query.Query,String>

builder

public static RetrievalQAChain.Builder builder()