OpenSearch/docs/java-api/query-dsl.asciidoc
Nik Everett 732741dd8d Build that java api docs from a test (#24354)
We've had `QueryDSLDocumentationTests` for a while but it had a very
hopeful comment at the top about how we want to make sure that the
example in the query-dsl docs match up with the test but we never
had anything that made *sure* that they did. This changes that!

Now the examples from the query-dsl docs are all built from the
`QueryDSLDocumentationTests`. All except for the percolator example
because that is hard to do as it stands now.

To make this easier this change moves `QueryDSLDocumentationTests`
from core and into the high level rest client. This is useful for
two reasons:
1. We expect the high level rest client to be able to use the builders.
2. The code that builds that docs doesn't check out all of
Elasticsearch. It only checks out certain directories. Since we're
already including snippets from that directory we don't have to
make any changes to that process.

Closes #24320
2017-05-02 13:00:56 -04:00

41 lines
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[[java-query-dsl]]
== Query DSL
Elasticsearch provides a full Java query dsl in a similar manner to the
REST {ref}/query-dsl.html[Query DSL]. The factory for query
builders is `QueryBuilders`. Once your query is ready, you can use the
<<java-search,Search API>>.
To use `QueryBuilders` just import them in your class:
[source,java]
--------------------------------------------------
import static org.elasticsearch.index.query.QueryBuilders.*;
--------------------------------------------------
Note that you can easily print (aka debug) JSON generated queries using
`toString()` method on `QueryBuilder` object.
The `QueryBuilder` can then be used with any API that accepts a query,
such as `count` and `search`.
:query-dsl-test: {docdir}/../../client/rest-high-level/src/test/java/org/elasticsearch/client/documentation/QueryDSLDocumentationTests.java
include::query-dsl/match-all-query.asciidoc[]
include::query-dsl/full-text-queries.asciidoc[]
include::query-dsl/term-level-queries.asciidoc[]
include::query-dsl/compound-queries.asciidoc[]
include::query-dsl/joining-queries.asciidoc[]
include::query-dsl/geo-queries.asciidoc[]
include::query-dsl/special-queries.asciidoc[]
include::query-dsl/span-queries.asciidoc[]
:query-dsl-test!: