/*******************************************************************************
* Copyright (c) 1998, 2015 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 from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.internal.helper;
/**
* INTERNAL:
* This counter is used by the sessions to assign individual id's to all queries.
* It is not synchronized because ++ with volatile is atomic, and queries executing at the same time do not require to refresh twice.
* It is part of the fix for Bug#2698903 which arose from the fix for BUG#2612628
*/
public class QueryCounter {
private static volatile long count = 0;
public static long getCount() {
return ++count;
}
}