/** * This software is licensed to you under the Apache License, Version 2.0 (the * "Apache License"). * * LinkedIn's contributions are made under the Apache License. If you contribute * to the Software, the contributions will be deemed to have been made under the * Apache License, unless you expressly indicate otherwise. Please do not make any * contributions that would be inconsistent with the Apache License. * * You may obtain a copy of the Apache License at http://www.apache.org/licenses/LICENSE-2.0 * Unless required by applicable law or agreed to in writing, this software * distributed under the Apache License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the Apache * License for the specific language governing permissions and limitations for the * software governed under the Apache License. * * © 2012 LinkedIn Corp. All Rights Reserved. */ package com.senseidb.search.client.req.query; import com.senseidb.search.client.json.CustomJsonHandler; /** * <p> * A query that matches all documents. Maps to Sensei * <code>MatchAllDocsQuery</code>. * </p> * * <pre class="prettyprint lang-js"> * <span class="pun">{</span><span class="pln"><br>    </span><span class="str">"match_all"</span><span class="pln"> </span><span class="pun">:</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="pun">}</span><span class="pln"><br></span><span class="pun">}</span> * </pre> * * <p> * Which can also have boost associated with it: * </p> * * <pre class="prettyprint lang-js"> * <span class="pun">{</span><span class="pln"><br>    </span><span class="str">"match_all"</span><span class="pln"> </span><span class="pun">:</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="str">"boost"</span><span class="pln"> </span><span class="pun">:</span><span class="pln"> </span><span class="lit">1.2</span><span class="pln"> </span><span class="pun">}</span><span class="pln"><br></span><span class="pun">}</span> * </pre> * * <h2>Index Time Boost</h2> * <p> * When indexing, a boost value can either be associated on the document level, * or per field. The match all query does not take boosting into account by * default. In order to take boosting into account, the <code>norms_field</code> * needs to be provided in order to explicitly specify which field the boosting * will be done on (Note, this will result in slower execution time). For * example: * </p> * * <pre class="prettyprint lang-js"> * <span class="pun">{</span><span class="pln"><br>    </span><span class="str">"match_all"</span><span class="pln"> </span><span class="pun">:</span><span class="pln"> </span><span class="pun">{</span><span class="pln"> </span><span class="str">"norms_field"</span><span class="pln"> </span><span class="pun">:</span><span class="pln"> </span><span class="str">"my_field"</span><span class="pln"> </span><span class="pun">}</span><span class="pln"><br></span><span class="pun">}</span> * </pre> * * * */ @CustomJsonHandler(QueryJsonHandler.class) public class MatchAllQuery extends Query { private double boost; public MatchAllQuery(double boost) { super(); this.boost = boost; } public double getBoost() { return boost; } }