Class ElasticsearchConfigurationHybrid

java.lang.Object

dev.langchain4j.store.embedding.elasticsearch.ElasticsearchConfigurationHybrid

All Implemented Interfaces:

ElasticsearchConfiguration

public class ElasticsearchConfigurationHybrid
extends Object
implements ElasticsearchConfiguration

Represents an Elasticsearch index as an embedding store using rff to combine a kNN query and a full text search.

See Also:

• hybrid search
  Running hybrid search requires an elasticsearch paid license.
• subscriptions

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ElasticsearchConfigurationHybrid.Builder

Field Summary

Fields inherited from interface ElasticsearchConfiguration

TEXT_FIELD, VECTOR_FIELD

Method Summary

Modifier and Type	Method	Description
static ElasticsearchConfigurationHybrid.Builder	builder()
co.elastic.clients.elasticsearch.core.SearchResponse<Document>	hybridSearch(co.elastic.clients.elasticsearch.ElasticsearchClient client, String indexName, EmbeddingSearchRequest embeddingSearchRequest, String textQuery)	Used for hybrid search
boolean	isIncludeVectorResponse()	Temporary method which returns if we should return the Vector in the response

Methods inherited from class Object

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

Methods inherited from interface ElasticsearchConfiguration

fullTextSearch, vectorSearch

Method Details

builder

public static ElasticsearchConfigurationHybrid.Builder builder()

isIncludeVectorResponse

public boolean isIncludeVectorResponse()

Description copied from interface: ElasticsearchConfiguration

Temporary method which returns if we should return the Vector in the response

Specified by:

isIncludeVectorResponse in interface ElasticsearchConfiguration

Returns:

true or false

hybridSearch

public co.elastic.clients.elasticsearch.core.SearchResponse<Document> hybridSearch(co.elastic.clients.elasticsearch.ElasticsearchClient client,
 String indexName,
 EmbeddingSearchRequest embeddingSearchRequest,
 String textQuery)
                                                                            throws co.elastic.clients.elasticsearch._types.ElasticsearchException,
IOException

Description copied from interface: ElasticsearchConfiguration

Used for hybrid search

Specified by:

hybridSearch in interface ElasticsearchConfiguration

Parameters:

client - The Elasticsearch client

indexName - The index name

embeddingSearchRequest - The embedding search request

textQuery - The text query

Returns:

The search response

Throws:

co.elastic.clients.elasticsearch._types.ElasticsearchException - if an error occurs during the search

IOException - if an I/O error occurs