Java tutorial
/** * Licensed to JumpMind Inc under one or more contributor * license agreements. See the NOTICE file distributed * with this work for additional information regarding * copyright ownership. JumpMind Inc licenses this file * to you under the GNU General Public License, version 3.0 (GPLv3) * (the "License"); you may not use this file except in compliance * with the License. * * You should have received a copy of the GNU General Public License, * version 3.0 (GPLv3) along with this library; if not, see * <http://www.gnu.org/licenses/>. * * 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.jumpmind.metl.ui.common; import java.io.Serializable; import java.sql.SQLException; import javax.sql.DataSource; import org.apache.commons.dbcp.BasicDataSource; import org.jumpmind.db.platform.IDatabasePlatform; import org.jumpmind.db.platform.JdbcDatabasePlatformFactory; import org.jumpmind.db.sql.SqlTemplateSettings; import org.jumpmind.metl.core.model.Agent; import org.jumpmind.metl.core.runtime.resource.IResourceRuntime; import org.jumpmind.vaadin.ui.sqlexplorer.IDb; public class DbResource implements IDb, Serializable { private static final long serialVersionUID = 1L; IResourceRuntime resource; Agent agent; IDatabasePlatform platform; public DbResource(Agent agent, IResourceRuntime resource) { this.resource = resource; this.agent = agent; } @Override public String getName() { return agent.getName() + " > " + resource.getResource().getName(); } @Override public IDatabasePlatform getPlatform() { if (platform == null) { DataSource dataSource = resource.reference(); platform = JdbcDatabasePlatformFactory.createNewPlatformInstance(dataSource, new SqlTemplateSettings(), false, false); } return platform; } public void close() { if (platform != null) { BasicDataSource ds = (BasicDataSource) platform.getDataSource(); if (ds != null) { try { ds.close(); } catch (SQLException e) { } } } } public Agent getAgent() { return agent; } public IResourceRuntime getResource() { return resource; } @Override public int hashCode() { return resource.hashCode(); } @Override public boolean equals(Object obj) { if (obj instanceof DbResource) { return resource.equals(((DbResource) obj).getResource()); } else { return super.equals(obj); } } }