Java tutorial
/* * Copyright (c) 2015 David Boissier * * 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 org.codinjutsu.tools.nosql.mongo.model; import com.mongodb.BasicDBObject; import com.mongodb.util.JSON; import org.apache.commons.lang.StringUtils; import org.bson.Document; import org.bson.conversions.Bson; import org.codinjutsu.tools.nosql.mongo.MongoUtils; import java.util.LinkedList; import java.util.List; public class MongoQueryOptions { private static final int DEFAULT_RESULT_LIMIT = 300; private static final BasicDBObject EMPTY_FILTER = new BasicDBObject(); private final List<Document> operations = new LinkedList<>(); private Bson filter = EMPTY_FILTER; private Bson projection = null; private Bson sort; private int resultLimit = DEFAULT_RESULT_LIMIT; public boolean isAggregate() { return !operations.isEmpty(); } public List<Document> getOperations() { return operations; } public void setOperations(String aggregateQuery) { operations.clear(); List operations = (List) MongoUtils.parseJSON(aggregateQuery); //noinspection unchecked - safe to ignore - it parses it to a List<Document> this.operations.addAll(operations); } public void setFilter(String query) { if (!StringUtils.isBlank(query)) { filter = (Bson) JSON.parse(query); } } public Bson getFilter() { return filter; } public void setProjection(String query) { if (!StringUtils.isBlank(query)) { projection = (Bson) JSON.parse(query); } } public Bson getProjection() { return projection; } public void setSort(String query) { if (!StringUtils.isBlank(query)) { sort = (Bson) JSON.parse(query); } } public Bson getSort() { return sort; } public int getResultLimit() { return resultLimit; } public void setResultLimit(int resultLimit) { this.resultLimit = resultLimit; } }