/*
* 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.bridge;
import org.jboss.as.cmp.CmpMessages;
import org.jboss.as.cmp.context.CmpEntityBeanContext;
import org.jboss.as.cmp.jdbc.JDBCStoreManager;
import org.jboss.as.cmp.jdbc.metadata.JDBCCMPFieldMetaData;
import org.jboss.as.cmp.keygenerator.KeyGenerator;
import org.jboss.as.cmp.keygenerator.KeyGeneratorFactory;
import org.jboss.as.cmp.keygenerator.uuid.UUIDKeyGeneratorFactory;
/**
* @author <a href="mailto:alex@jboss.org">Alexey Loubyansky</a>
*/
public class JDBCKeyGenVersionFieldBridge extends JDBCCMP2xVersionFieldBridge {
private final KeyGenerator keyGenerator;
public JDBCKeyGenVersionFieldBridge(JDBCStoreManager manager, JDBCCMPFieldMetaData metadata, String keygenFactoryName) {
super(manager, metadata);
keyGenerator = initKeyGenerator(keygenFactoryName);
}
public JDBCKeyGenVersionFieldBridge(JDBCCMP2xFieldBridge cmpField, String keygenFactoryName) {
super(cmpField);
keyGenerator = initKeyGenerator(keygenFactoryName);
}
private KeyGenerator initKeyGenerator(String keygenFactoryName) {
try {
KeyGeneratorFactory keygenFactory = new UUIDKeyGeneratorFactory();
return keygenFactory.getKeyGenerator();
} catch (Exception e) {
throw CmpMessages.MESSAGES.failedToInitKeyGenerator(e);
}
}
public void setFirstVersion(CmpEntityBeanContext ctx) {
Object version = keyGenerator.generateKey();
setInstanceValue(ctx, version);
}
public Object updateVersion(CmpEntityBeanContext ctx) {
Object next = keyGenerator.generateKey();
setInstanceValue(ctx, next);
return next;
}
}