/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.cmp.jdbc.keygen;
import javax.ejb.CreateException;
import org.jboss.as.cmp.context.CmpEntityBeanContext;
import org.jboss.as.cmp.jdbc.JDBCInsertPKCreateCommand;
import org.jboss.as.cmp.jdbc.JDBCStoreManager;
import org.jboss.as.cmp.jdbc.bridge.JDBCCMPFieldBridge;
import org.jboss.as.cmp.jdbc.metadata.JDBCEntityCommandMetaData;
import org.jboss.as.cmp.keygenerator.KeyGenerator;
import org.jboss.as.cmp.keygenerator.KeyGeneratorFactory;
/**
* @author John Bailey
*/
public class JDBCKeyGeneratorCreateCommand extends JDBCInsertPKCreateCommand {
protected KeyGenerator keyGenerator;
protected JDBCCMPFieldBridge pkField;
public void init(JDBCStoreManager manager) {
super.init(manager);
pkField = getGeneratedPKField();
}
protected void initEntityCommand(JDBCEntityCommandMetaData entityCommand) {
super.initEntityCommand(entityCommand);
String factoryName = entityCommand.getAttribute("key-generator-factory");
if (factoryName == null) {
throw new RuntimeException("key-generator-factory attribute must be set for entity " + entity.getEntityName());
}
try {
KeyGeneratorFactory keyGeneratorFactory = entity.getManager().getKeyGeneratorFactory(factoryName);
if(keyGeneratorFactory == null) {
throw new IllegalArgumentException("Invalid key generator name; not found: " + factoryName);
}
keyGenerator = keyGeneratorFactory.getKeyGenerator();
} catch (Exception e) {
throw new RuntimeException("Error: can't create key generator instance; key generator factory: " + factoryName, e);
}
}
protected void generateFields(CmpEntityBeanContext ctx) throws CreateException {
super.generateFields(ctx);
Object pk = keyGenerator.generateKey();
log.debug("Generated new pk: " + pk);
pkField.setInstanceValue(ctx, pk);
}
}