| /* |
| * Copyright (c) 1998, 2020 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 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 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; |
| } |
| } |
