foundation/org.eclipse.persistence.core/src/org/eclipse/persistence/sequencing/UUIDSequence.java

/*******************************************************************************
 * Copyright (c) 2011, 2013 Oracle and/or its affiliates. All rights reserved.
 * This program and the accompanying materials are made available under the 
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0 
 * which accompanies this distribution. 
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at 
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *     Oracle - initial API and implementation
 ******************************************/
package org.eclipse.persistence.sequencing;

import java.util.UUID;
import java.util.Vector;

import org.eclipse.persistence.internal.databaseaccess.Accessor;
import org.eclipse.persistence.internal.sessions.AbstractSession;
import org.eclipse.persistence.sequencing.Sequence;

public class UUIDSequence extends Sequence {

    public UUIDSequence() {
        super();
    }

    public UUIDSequence(String name) {
        super(name);
    }

    @Override
    public Object getGeneratedValue(Accessor accessor, AbstractSession writeSession, String seqName) {
        return UUID.randomUUID().toString().toUpperCase();
    }

    @Override
    public Vector getGeneratedVector(Accessor accessor, AbstractSession writeSession, String seqName, int size) {
        return null;
    }

    @Override
    public void onConnect() {
    }

    @Override
    public void onDisconnect() {
    }

    @Override
    public boolean shouldAcquireValueAfterInsert() {
        return false;
    }

    @Override
    public boolean shouldUseTransaction() {
        return false;
    }

    @Override
    public boolean shouldUsePreallocation() {
        return false;
    }

}