Java tutorial
package jahspotify.storage.statistics; /* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF 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. */ import com.google.gson.Gson; import com.mongodb.DBCursor; import com.mongodb.util.JSON; /** * @author Johan Lindquist */ public class MongoDBHistoryCursor implements HistoryCursor { private DBCursor _dbObjects; private static Gson _gson = new Gson(); MongoDBHistoryCursor(final DBCursor dbObjects) { _dbObjects = dbObjects; } @Override public int getCount() { return _dbObjects.count(); } @Override public boolean hasNext() { return _dbObjects.hasNext(); } @Override public TrackHistory next() { return _gson.fromJson(JSON.serialize(_dbObjects.next()), TrackHistory.class); } @Override public void remove() { throw new UnsupportedOperationException("Not supported"); } }