Package dev.langchain4j.rag.content.retriever.neo4j

Class Neo4jContentRetriever

java.lang.Object

dev.langchain4j.rag.content.retriever.neo4j.Neo4jContentRetriever

All Implemented Interfaces:

ContentRetriever

public class Neo4jContentRetriever
extends Object
implements ContentRetriever

A ContentRetriever that retrieves from an Neo4jGraph. It converts a natural language question into a Neo4j cypher query and then retrieves relevant Contents by executing the query on Neo4j.

Constructor Summary

Constructors

Constructor	Description
Neo4jContentRetriever(Neo4jGraph graph, ChatLanguageModel chatLanguageModel, PromptTemplate promptTemplate)

Method Summary

Modifier and Type	Method	Description
List<Content>	retrieve(Query query)	Retrieves relevant Contents using a given Query.

Methods inherited from class java.lang.Object

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

Constructor Details

Neo4jContentRetriever

public Neo4jContentRetriever(Neo4jGraph graph,
 ChatLanguageModel chatLanguageModel,
 PromptTemplate promptTemplate)

Method Details

retrieve

public List<Content> retrieve(Query query)

Description copied from interface: ContentRetriever

Retrieves relevant Contents using a given Query. The Contents are sorted by relevance, with the most relevant Contents appearing at the beginning of the returned List<Content>.

Specified by:

retrieve in interface ContentRetriever

Parameters:

query - The Query to use for retrieval.

Returns:

A list of retrieved Contents.