Using post_filter with Spring Data Elasticsearch's NativeSearchQueryBuilder

Question

I am in reference to the NativeSearchQueryBuilder spring data elasticsearch.

What is the way to set a post_filter to a nativeSearchQuery?

It seems possible with the native elasticsearch search api: see here and as follows:

SearchResponse response = client.prepareSearch("index1", "index2")
        .setTypes("type1", "type2")
        .setSearchType(SearchType.DFS_QUERY_THEN_FETCH)
        .setQuery(QueryBuilders.termQuery("multi", "test"))             // Query
        .setPostFilter(FilterBuilders.rangeFilter("age").from(12).to(18))   // Filter
        .setFrom(0).setSize(60).setExplain(true)
        .execute()
        .actionGet();

But I haven't found any way to do it in Spring data elasticsearch.

Val · Accepted Answer · 2015-08-17 04:06:51Z

4

+50

The post_filter is used implicitly when you call the ElasticsearchTemplate.queryForPage(SearchQuery query, Class<T> clazz) method. It will check if the SearchQuery parameter contains a filter and if it does, it will call setPostFilter() with that filter on the native SearchRequestBuilder.

So you can construct your query using the NativeSearchQueryBuilder like this:

private ElasticsearchTemplate elasticsearchTemplate;

SearchQuery searchQuery = new NativeSearchQueryBuilder()
    .withQuery(matchAllQuery())                     <--- your query
    .withFilter(termFilter("name", "somename"))     <--- your post filter
    .build();

Page<SampleEntity> sampleEntities =
    elasticsearchTemplate.queryForPage(searchQuery, SampleEntity.class);

Under the hood, ElasticsearchTemplate will set the post_filter with the above term filter on the name field.

answered Aug 17, 2015 at 4:06

Val

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1 Comment

Ahmet Over a year ago

Definitely the answer.

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