Migrating ElasticSearch Java API FacetFilter (in early version) to simliar Aggregation in ES v5.5.3

Migrating ElasticSearch Java API FacetFilter (in early version) to simliar Aggregation in ES v5.5.3



I am migrating a Grails application using Elasticsearch Java v0.93 to version 5.5.3. One of the challenges I am facing is to migrate Facet Filter to a similar Aggregation.



Following is the code from the early version of Elasticsearch Java API:


FacetBuilders
.termsFacet("f").field("brand").size(50) // Your facet
.allTerms(true)
.facetFilter( // Your filter here
FilterBuilders.boolFilter()
);



As per the Elasticsearch Java API "Facets has been removed and it is recommended to use filter aggregation or filters aggregation.



Thanks!






It's been a while, but basically you want to get the 50 most common (brand) terms without a filter? That should be a straight forward terms aggregation

– xeraa
Sep 13 '18 at 9:53






@xeraa what do you mean by without a filter? Also, FilterBuilders.boolFilter() has other must filters which I didn't mention in this question.

– Puneet Behl
Sep 13 '18 at 10:10


FilterBuilders.boolFilter()


must




1 Answer
1



Please try below query to migrate facets to Aggregation


facets


Aggregation


AggregationBuilders.filter("Filter By Some Property", QueryBuilders.termQuery("some Field", "value"))
.subAggregation(AggregationBuilders.terms("Group By Some Other property").field("brand").size(50));



Here you can use any type of query in filter method. Have used Term Query just as an example.


filter


Term Query



Hope it helps!!



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