1 /***
2 * Copyright 2003-2010 Terracotta, Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package net.sf.ehcache.store.compound;
17
18 import net.sf.ehcache.Element;
19
20 /***
21 * @author Alex Snaps
22 * @author Ludovic Orban
23 */
24 public class ImmutableValueElementCopyStrategy implements ReadWriteCopyStrategy<Element> {
25
26 private final ReadWriteSerializationCopyStrategy copyStrategy = new ReadWriteSerializationCopyStrategy();
27
28 /***
29 * @inheritDoc
30 */
31 public Element copyForWrite(Element value) {
32 if (value == null) {
33 return null;
34 }
35 return copyStrategy.duplicateElementWithNewValue(value, value.getObjectValue());
36 }
37
38 /***
39 * @inheritDoc
40 */
41 public Element copyForRead(Element storedValue) {
42 if (storedValue == null) {
43 return null;
44 }
45 return copyStrategy.duplicateElementWithNewValue(storedValue, storedValue.getObjectValue());
46 }
47 }