Java tutorial
package com.tesora.dve.upgrade.versions; /* * #%L * Tesora Inc. * Database Virtualization Engine * %% * Copyright (C) 2011 - 2014 Tesora Inc. * %% * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License, version 3, * as published by the Free Software Foundation. * * 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * #L% */ import java.sql.SQLException; import java.util.ArrayList; import java.util.List; import org.apache.commons.lang.BooleanUtils; import com.tesora.dve.charset.NativeCollation; import com.tesora.dve.charset.MysqlNativeCollationCatalog; import com.tesora.dve.common.DBHelper; import com.tesora.dve.common.InformationCallback; import com.tesora.dve.exceptions.PEException; public class AddCollation extends SimpleCatalogVersion { public AddCollation(int version) { super(version); } @Override public String[] getUpgradeCommands(DBHelper helper) throws PEException { return new String[] { "alter table character_sets drop column default_collate_name", "create table collations (name varchar(32) not null, character_set_name varchar(32) not null, id integer not null, is_default integer not null default '0', is_compiled integer not null default '1', sortlen bigint(3) not null, primary key(id)) ENGINE=InnoDB;" }; } @Override public void upgrade(DBHelper helper, InformationCallback stdout) throws PEException { super.upgrade(helper, stdout); try { List<Object> params = new ArrayList<Object>(); helper.prepare( "insert into collations (id, name, character_set_name, is_default, is_compiled, sortlen) values (?,?,?,?,?,?)"); for (String collationName : MysqlNativeCollationCatalog.DEFAULT_CATALOG .getCollationsCatalogEntriesByName()) { NativeCollation nc = MysqlNativeCollationCatalog.DEFAULT_CATALOG.findCollationByName(collationName); params.clear(); params.add(nc.getId()); params.add(nc.getName()); params.add(nc.getCharacterSetName()); params.add(BooleanUtils.toInteger(nc.isDefault())); params.add(BooleanUtils.toInteger(nc.isCompiled())); params.add(nc.getSortLen()); helper.executePrepared(params); } } catch (SQLException sqle) { throw new PEException("Unable to insert collation values: " + sqle.getMessage()); } } }