Building a query

Before search, a query must be built, Elasticsearch provides several ways to build these queries. In this recipe, will see how to create a query object via QueryBuilder and via simple strings.

Getting ready

You need an up-and-running Elasticsearch installation as we described in the Downloading and installing Elasticsearch recipe in Chapter 2, Downloading and Setup.

A Maven tool, or an IDE that natively supports it for Java programming such as Eclipse or IntelliJ IDEA, must be installed.

The code for this recipe is in the  chapter_14/nativeclient directory and the referred class is  QueryCreation.

How to do it...

To create a query, we will perform the following steps:

1. We need to import the QueryBuilders:

           import org.elasticsearch.index.query.BoolQueryBuilder; 
           import org.elasticsearch.index.query.RangeQueryBuilder; 
           import org.elasticsearch.index.query.TermQueryBuilder; 
   

2. We'll create a query using QueryBuilder:

           TermQueryBuilder filter...