Java tutorial
/* * Copyright 2013 BancVue Ltd. * * 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 com.bancvue.mongomigrate; import com.mongodb.DB; import com.mongodb.DBCollection; import com.mongodb.MongoClient; import org.mongojack.DBQuery; import org.mongojack.JacksonDBCollection; import java.net.UnknownHostException; import java.util.List; /** * Created with IntelliJ IDEA. * User: Chris.Edwards * Date: 7/28/13 * Time: 5:08 AM */ public class MigrationHistoryRepository implements IMigrationHistoryRepository { private final JacksonDBCollection<Migration, String> collection; private final String databaseName; public MigrationHistoryRepository(String host, String databaseName) throws UnknownHostException { this.databaseName = databaseName; MongoClient mongoClient = new MongoClient(host); DB db = mongoClient.getDB(databaseName); DBCollection dbCollection = db.getCollection("MigrationHistory"); collection = JacksonDBCollection.wrap(dbCollection, Migration.class, String.class); } @Override public void save(Migration migration) { collection.save(migration); } @Override public Migration find(String name) { return collection.findOneById(name); } @Override public List<Migration> findAll() { return collection.find().toArray(); } @Override public void remove(Migration migration) { collection.removeById(migration.getName()); } @Override public void removeAll() { collection.remove(DBQuery.empty()); } @Override public String getDatabaseName() { return databaseName; } }