1 /***
2 *
3 * Copyright 2004 Protique Ltd
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 **/
18 package org.codehaus.activespace.cache;
19
20 import javax.cache.Cache;
21
22 /***
23 * An exception thrown if a commit() fails due to optimistic transaction failures.
24 *
25 * @version $Revision: 1.4 $
26 */
27 public class OptimisticTransactionException extends TransactionException {
28 private Cache cache;
29 private Object key;
30 private Object updateVersion;
31 private Object currentVersion;
32
33 public OptimisticTransactionException(Cache cache, Object key, Object updateVersion, Object currentVersion) {
34 super("Failed to update key: " + key + " at version: " + currentVersion + " from update version: " + updateVersion);
35 this.cache = cache;
36 this.key = key;
37 this.updateVersion = updateVersion;
38 this.currentVersion = currentVersion;
39 }
40
41 public Cache getCache() {
42 return cache;
43 }
44
45 public Object getKey() {
46 return key;
47 }
48
49 /***
50 * Returns the version at which a change was applied
51 */
52 public Object getUpdateVersion() {
53 return updateVersion;
54 }
55
56 /***
57 * Returns the current version of the entry
58 */
59 public Object getCurrentVersion() {
60 return currentVersion;
61 }
62 }