SetObjectDataTransaction


1   /*
2    *    Copyright 2004 Dusty Phillips
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 com.buchuki.ensmer.prevayler.queries;
17  
18  import java.io.Serializable  ;
19  import java.util.Date  ;
20  import com.buchuki.ensmer.prevayler.*;
21  import org.prevayler.*;
22  
23  /**
24   * Query to notify that an object's data has been changed.
25   *
26   * @author   Dusty Phillips [dusty@buchuki.com]
27   */
28  public class SetObjectDataTransaction implements Transaction {
29  
30      /**
31       * Give it a SerialVersionUID so it can be reinstantiated by later versions
32       * of the class
33       */
34      static final long serialVersionUID = 20050328L;
35  
36      /**
37       * Create an SetObjectDataTransaction with a reference to the id to be
38       * manipulated and the new data of the object
39       *
40       * @param id    the id for the new object
41       * @param data  the data to be serialized
42       */
43      public SetObjectDataTransaction(long id, Serializable   data) {
44          this.id = id;
45          this.data = data;
46      }
47  
48      /**
49       * Execute the transaction
50       *
51       * @param system   the EnsmerPrevayler to operate on
52       * @param ignored  the time at which the transaction was executed; ignored in
53       *      this case
54       */
55      public void executeOn(Object   system, Date   ignored) {
56          ((EnsmerPrevayler) system).getObjectPrevayler().setData(id, data);
57      }
58  
59      /**
60       * The ObjectID to serialize
61       */
62      private long id;
63  
64      /**
65       * The data to be serialized for that id
66       */
67      private Serializable   data;
68  }
69  
70
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