# Hybrid search by using knn and query in java client

**URL:** <https://discuss.elastic.co/t/hybrid-search-by-using-knn-and-query-in-java-client/346594>\
**Category:** Elasticsearch\
**Tags:** vector-search\
**Created:** [November 7, 2023, 6:57am UTC](https://discuss.elastic.co/t/hybrid-search-by-using-knn-and-query-in-java-client/346594 "2023-11-07T06:57:52Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![wshan13](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/wshan13/32/127296_2.png) [@wshan13](https://discuss.elastic.co/u/wshan13)\
**Post date:** [November 7, 2023, 6:57am UTC](https://discuss.elastic.co/t/hybrid-search-by-using-knn-and-query-in-java-client/346594/1 "2023-11-07T06:57:52Z")

</div>

Hello.  
I want the hybrid search by using both the knn option and a query on the page below with java client.

> **[k-nearest neighbor (kNN) search | Elasticsearch Guide \[8.10\] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/current/knn-search.html#_combine_approximate_knn_with_other_features)**

With spring-boot 3.1.5 and elasticsarch-java 8.7.1 environment,  
I made some codes as below, but seems like .withKnnQuery(knnQuery) condition is not processed. Is there any way?

```auto
MatchQuery matchQuery = new MatchQuery.Builder().field(textfield).query(searchText).boost(1.0f).build();
BoolQuery boolQuery = new BoolQuery.Builder().must(List.of(matchQuery._toQuery())).build();

TermsQuery termsQuery = new TermsQuery.Builder().field("ownerNm").terms(new TermsQueryField.Builder().value(List.of(FieldValue.of("luis"))).build()).build();
KnnQuery knnQuery = new KnnQuery.Builder()
					.field("text_VEC")
					.queryVector(queryEmbedding)
					.numCandidates(100)
					.k(10)
					.boost(10.0f)
					.filter(List.of(termsQuery._toQuery()))
					.build();
		
Query searchQuery = NativeQuery.builder()
				.withKnnQuery(knnQuery)
				.withQuery(boolQuery._toQuery())
				.withSearchType(null)
				.withMaxResults(5)
				.build();

SearchHits<TetstIndex> searchHits = operations.search(searchQuery, TestIndex.class);

```

---

<div class="post-metadata">

**Author:** ![RabBit\_BR](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rabbit_br/32/82261_2.png) [@RabBit\_BR](https://discuss.elastic.co/u/RabBit_BR)\
**Post date:** [November 8, 2023, 12:18pm UTC](https://discuss.elastic.co/t/hybrid-search-by-using-knn-and-query-in-java-client/346594/2 "2023-11-08T12:18:50Z")

</div>

Hi @wshan13 .

You can try replace this:

> [@wshan13](#):
>
> ```auto
> Query searchQuery = NativeQuery.builder()
> .withKnnQuery(knnQuery)
> .withQuery(boolQuery._toQuery())
> .withSearchType(null)
> .withMaxResults(5)
> .build();
> 
> ```

for this:

```auto
   SearchRequest sr = SearchRequest.of(s -> s
        .index("idx")
        .query(boolQuery._toQuery())
        .knn(knnQuery)
    );

```

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [December 6, 2023, 12:19pm UTC](https://discuss.elastic.co/t/hybrid-search-by-using-knn-and-query-in-java-client/346594/3 "2023-12-06T12:19:17Z")

</div>

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