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1   /**
2    *  Licensed to the Apache Software Foundation (ASF) under one or more
3    *  contributor license agreements.  See the NOTICE file distributed with
4    *  this work for additional information regarding copyright ownership.
5    *  The ASF licenses this file to You under the Apache License, Version 2.0
6    *  (the "License"); you may not use this file except in compliance with
7    *  the License.  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.apache.geronimo.transaction.log;
19  
20  import java.util.ArrayList;
21  import java.util.Collection;
22  import java.util.List;
23  
24  import javax.transaction.xa.Xid;
25  
26  import org.apache.geronimo.transaction.manager.LogException;
27  import org.apache.geronimo.transaction.manager.TransactionLog;
28  import org.apache.geronimo.transaction.manager.XidFactory;
29  
30  /**
31   * A log sink that doesn't actually do anything.
32   * Not recommended for production use as heuristic recovery will be needed if
33   * the transaction coordinator dies.
34   *
35   * @version $Rev: 476049 $ $Date: 2006-11-16 23:35:17 -0500 (Thu, 16 Nov 2006) $
36   */
37  public class UnrecoverableLog implements TransactionLog {
38      public void begin(Xid xid) throws LogException {
39      }
40  
41      public Object prepare(Xid xid, List branches) throws LogException {
42          return null;
43      }
44  
45      public void commit(Xid xid, Object logMark) throws LogException {
46      }
47  
48      public void rollback(Xid xid, Object logMark) throws LogException {
49      }
50  
51      public Collection recover(XidFactory xidFactory) throws LogException {
52          return new ArrayList();
53      }
54  
55      public String getXMLStats() {
56          return null;
57      }
58  
59      public int getAverageForceTime() {
60          return 0;
61      }
62  
63      public int getAverageBytesPerForce() {
64          return 0;
65      }
66  }