Java tutorial
/* * Vulcan Build Manager * Copyright (C) 2005-2012 Chris Eldredge * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ package net.sourceforge.vulcan.spring.jdbc; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Types; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Map.Entry; import java.util.UUID; import javax.sql.DataSource; import org.apache.commons.collections.keyvalue.DefaultMapEntry; import org.springframework.jdbc.core.SqlParameter; import org.springframework.jdbc.object.MappingSqlQuery; class DependencyQuery extends MappingSqlQuery { public DependencyQuery(DataSource dataSource) { super(dataSource, "select name, uuid " + "from builds " + "inner join project_names on builds.project_id = project_names.id " + "inner join build_dependencies on builds.id = build_dependencies.dependency_build_id " + "where build_dependencies.build_id = ?"); declareParameter(new SqlParameter("build_dependencies.build_id", Types.NUMERIC)); compile(); } @SuppressWarnings("unchecked") public Map<String, UUID> queryForDependencyMap(int primaryKey) { final List<Entry<String, UUID>> deps = execute(new Object[] { primaryKey }); final Map<String, UUID> map = new HashMap<String, UUID>(); for (Entry<String, UUID> dep : deps) { map.put(dep.getKey(), dep.getValue()); } return map; } @Override @SuppressWarnings("unchecked") protected Entry<String, UUID> mapRow(ResultSet rs, int rowNumber) throws SQLException { return new DefaultMapEntry(rs.getString("name"), UUID.fromString(rs.getString("uuid"))); } }