1 /*
2 * Copyright (c) 1998, 2005 Gargoyle Software Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright notice,
8 * this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright notice,
10 * this list of conditions and the following disclaimer in the documentation
11 * and/or other materials provided with the distribution.
12 * 3. The end-user documentation included with the redistribution, if any, must
13 * include the following acknowledgment:
14 *
15 * "This product includes software developed by Gargoyle Software Inc.
16 * (http://www.GargoyleSoftware.com/)."
17 *
18 * Alternately, this acknowledgment may appear in the software itself, if
19 * and wherever such third-party acknowledgments normally appear.
20 * 4. The name "Gargoyle Software" must not be used to endorse or promote
21 * products derived from this software without prior written permission.
22 * For written permission, please contact info@GargoyleSoftware.com.
23 * 5. Products derived from this software may not be called "GSBase", nor may
24 * "GSBase" appear in their name, without prior written permission of
25 * Gargoyle Software Inc.
26 *
27 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
28 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
29 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GARGOYLE
30 * SOFTWARE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
31 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
33 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
34 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
35 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
36 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 */
38 package com.gargoylesoftware.base.objectstore;
39
40 import java.io.Serializable;
41
42 /***
43 * A command that can be sent to an object store
44 *
45 * @version $Revision: 1.4 $
46 * @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a>
47 */
48 public abstract class ObjectStoreCommand implements Serializable {
49
50 private static final long serialVersionUID = 2000;
51
52
53 /***
54 * Create an instance
55 */
56 protected ObjectStoreCommand() {
57 }
58
59
60 /***
61 * Return true if this object is equal to the specified object. The default
62 * behaviour is to return true if both commands are of the same class.
63 *
64 * @param object the object to compare against
65 * @return True if the objects are equal
66 */
67 public boolean equals( final Object object ) {
68 return object != null && getClass() == object.getClass();
69 }
70
71
72 /***
73 * Return a value that can be used in a hashing algorithm.
74 *
75 * @return A hash code
76 */
77 public int hashCode() {
78 return getClass().getName().hashCode();
79 }
80 }
81