Class FieldNamesFieldMapper

All Implemented Interfaces:
java.lang.Cloneable, java.lang.Iterable<Mapper>, org.elasticsearch.common.xcontent.ToXContent, org.elasticsearch.common.xcontent.ToXContentFragment

public class FieldNamesFieldMapper
extends MetadataFieldMapper
A mapper that indexes the field names of a document under _field_names. This mapper is typically useful in order to have fast exists and missing queries/filters. Added in Elasticsearch 1.3.