| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.openjpa.kernel; |
| |
| /** |
| * A lock manager that does not perform any locking. |
| * |
| * @author Marc Prud'hommeaux |
| */ |
| public class NoneLockManager |
| extends AbstractLockManager { |
| |
| @Override |
| public void lock(OpenJPAStateManager sm, int level, int timeout, |
| Object context) { |
| // Duplicate code in the 2 lock methods to enforce proper action |
| // and avoid unexpected behavior due to method override. |
| sm.setLock(Boolean.TRUE); |
| } |
| |
| @Override |
| public void refreshLock(OpenJPAStateManager sm, int level, int timeout, |
| Object context) { |
| sm.setLock(Boolean.TRUE); |
| } |
| |
| @Override |
| public void release(OpenJPAStateManager sm) { |
| sm.setLock(null); |
| } |
| |
| @Override |
| public int getLockLevel(OpenJPAStateManager sm) { |
| return LOCK_NONE; |
| } |
| } |