org.elasticsearch.index.query.xcontent.ExistsFilterBuilder Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of elasticsearch Show documentation
Show all versions of elasticsearch Show documentation
Elasticsearch subproject :server
/*
* Licensed to Elastic Search and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Elastic Search licenses this
* file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.index.query.xcontent;
import org.elasticsearch.common.xcontent.XContentBuilder;
import java.io.IOException;
/**
* Constructs a filter that only match on documents that the field has a value in them.
*
* @author kimchy (shay.banon)
*/
public class ExistsFilterBuilder extends BaseFilterBuilder {
private String name;
private String filterName;
public ExistsFilterBuilder(String name) {
this.name = name;
}
/**
* Sets the filter name for the filter that can be used when searching for matched_filters per hit.
*/
public ExistsFilterBuilder filterName(String filterName) {
this.filterName = filterName;
return this;
}
@Override protected void doXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject(ExistsFilterParser.NAME);
builder.field("field", name);
if (filterName != null) {
builder.field("_name", filterName);
}
builder.endObject();
}
}