/*
* Copyright 2008 Thomas Fach, Ralf Joachim
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.castor.cpa.persistence.sql.keygen;
import java.util.Properties;
import org.exolab.castor.mapping.MappingException;
import org.exolab.castor.persist.spi.PersistenceFactory;
/**
* UUID key generator factory. The short name of this key generator is "UUID".
* <br/>
* It uses the following alrorithm: The uuid is a combination of the IP address, the current time
* in milliseconds since 1970 and a static counter. The complete key consists of a 30 character
* fixed length string.
* <br/>
* Brief statement: The IP only exists once during runtime of castor, the current time in
* milliseconds (updated every 55 mills) is in combination to the IP pretty unique. Considering
* a static counter will be used a database-wide unique key will be created.
*
* @see UUIDKeyGenerator
* @author <a href="mailto:thomas DOT fach AT publica DOT de">Thomas Fach</a>
* @author <a href="mailto:ralf DOT joachim AT syscon DOT eu">Ralf Joachim</a>
* @version $Revision$ $Date: 2006-04-25 15:08:23 -0600 (Tue, 25 Apr 2006) $
*/
public final class UUIDKeyGeneratorFactory implements KeyGeneratorFactory {
//-----------------------------------------------------------------------------------
/**
* {@inheritDoc}
*/
public String getKeyGeneratorName() { return "UUID"; }
/**
* {@inheritDoc}
*/
public KeyGenerator getKeyGenerator(final PersistenceFactory factory,
final Properties params, final int sqlType) throws MappingException {
return new UUIDKeyGenerator(factory, sqlType);
}
//-----------------------------------------------------------------------------------
}