Java tutorial
/* * Copyright 2007-2016 the original author or authors. * * Licensed 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 net.ymate.platform.persistence.mongodb.expression; import com.mongodb.BasicDBObject; import net.ymate.platform.persistence.Params; import net.ymate.platform.persistence.mongodb.AbstractOperator; import net.ymate.platform.persistence.mongodb.IMongo; import net.ymate.platform.persistence.mongodb.IOperator; import net.ymate.platform.persistence.mongodb.support.Query; import org.bson.BSONObject; /** * @author (suninformation@163.com) on 15/11/28 ?3:03 * @version 1.0 */ public class ArrayExp extends AbstractOperator { public static ArrayExp all(Params params) { ArrayExp _exp = new ArrayExp(); _exp.__doAddOperator(IMongo.OPT.ALL, params.toArray()); return _exp; } public static ArrayExp elemMatch(IOperator... operators) { ArrayExp _exp = new ArrayExp(); BasicDBObject _dbObj = new BasicDBObject(); for (IOperator _opt : operators) { _dbObj.putAll((BSONObject) _opt.toBson()); } _exp.__doAddOperator(IMongo.OPT.ELEM_MATCH, _dbObj); return _exp; } public static ArrayExp elemMatch(Query... queries) { ArrayExp _exp = new ArrayExp(); BasicDBObject _dbObj = new BasicDBObject(); for (Query _query : queries) { _dbObj.putAll((BSONObject) _query.toBson()); } _exp.__doAddOperator(IMongo.OPT.ELEM_MATCH, _dbObj); return _exp; } public static ArrayExp size(int size) { ArrayExp _exp = new ArrayExp(); _exp.__doAddOperator(IMongo.OPT.SIZE, size); return _exp; } public static ArrayExp size(Object size) { ArrayExp _exp = new ArrayExp(); _exp.__doAddOperator(IMongo.OPT.SIZE, size); return _exp; } }