Elasticsearch: Java: Query API

Queries are just like filters, queries should be used instead of filters:

a.   For full text search

b.   Where the result depends on a relevance score

Use query clauses for full-text search or for any condition that should affect the relevance score, and use filter clauses for everything else.

Elasticsearch provides QueryBuilders API to build a query. Once your query is ready, you can use the Search API.

Following classes are used to builde query/filter.

import static org.elasticsearch.index.query.QueryBuilders.*;

import static org.elasticsearch.index.query.FilterBuilders.*;

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