# Convert Lucene BooleanQuery to ES BoolQueryBuilder

**URL:** <https://discuss.elastic.co/t/convert-lucene-booleanquery-to-es-boolquerybuilder/263993>\
**Category:** Elasticsearch\
**Created:** [February 11, 2021, 10:40am UTC](https://discuss.elastic.co/t/convert-lucene-booleanquery-to-es-boolquerybuilder/263993 "2021-02-11T10:40:48Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Mladen\_Rusev](https://avatars.discourse-cdn.com/v4/letter/m/278dde/32.png) [@Mladen\_Rusev](https://discuss.elastic.co/u/Mladen_Rusev)\
**Post date:** [February 11, 2021, 10:40am UTC](https://discuss.elastic.co/t/convert-lucene-booleanquery-to-es-boolquerybuilder/263993/1 "2021-02-11T10:40:48Z")

</div>

Hello,

I'm porting some indices from lucene to ES.  
I've managed to use

```
QueryBuilders.queryStringQuery(queryString);

```

to parse old lucene string queries to elastic.  
However I can't seem to find a way to use Lucene's BooleanQuery with Elastic's BooleanQueryBuilder.

` SearchRequest searchRequest = new SearchRequest(INDEX_NAME); SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder(); BoolQueryBuilder mainQuery = new BoolQueryBuilder();`

`QueryStringQueryBuilder stringQueryBuilder = QueryBuilders.queryStringQuery(queryString); mainQuery.must(stringQueryBuilder); `  
` mainQuery.must( lucene BooleanQuery here) ; searchSourceBuilder.query(mainQuery); searchRequest.source(searchSourceBuilder);`

Could this be achieved or am I better off rewriting the code which builds the Lucene BooleanQuery using Elastic Search BooleanQueryBuilder?

Thank you for your time  
Mladen

---

<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:** [March 11, 2021, 10:40am UTC](https://discuss.elastic.co/t/convert-lucene-booleanquery-to-es-boolquerybuilder/263993/2 "2021-03-11T10:40:54Z")

</div>

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