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/*
* Copyright (c) 2011, 2024 Oracle, IBM and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0,
* or the Eclipse Distribution License v. 1.0 which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
*/
// Contributors:
// Oracle - initial API and implementation
// 08/10/2022-4.0 Jody Grassel
// - ECL1535 : UUIDGenerator intermittently fails to initialize
package org.eclipse.persistence.sequencing;
import org.eclipse.persistence.internal.databaseaccess.Accessor;
import org.eclipse.persistence.internal.sessions.AbstractSession;
import org.eclipse.persistence.queries.ValueReadQuery;
import java.util.UUID;
import java.util.Vector;
public class UUIDSequence extends Sequence {
public UUIDSequence() {
super();
}
public UUIDSequence(String name) {
super(name);
}
@Override
public boolean equals(Object obj) {
if (obj instanceof UUIDSequence other) {
return this.getName().equals(other.getName());
} else {
return false;
}
}
@Override
public Object getGeneratedValue(Accessor accessor, AbstractSession writeSession, String seqName) {
ValueReadQuery query = null;
if (getDatasourcePlatform() != null) {
query = getDatasourcePlatform().getUUIDQuery();
}
if (query != null) {
return writeSession.executeQuery(query);
} else {
return UUID.randomUUID().toString();
}
}
@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;
}
}