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[simantics/platform.git] / bundles / org.simantics.scenegraph / src / org / simantics / scenegraph / g2d / events / command / Command.java
1 /*******************************************************************************\r
2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
3  * in Industry THTH ry.\r
4  * All rights reserved. This program and the accompanying materials\r
5  * are made available under the terms of the Eclipse Public License v1.0\r
6  * which accompanies this distribution, and is available at\r
7  * http://www.eclipse.org/legal/epl-v10.html\r
8  *\r
9  * Contributors:\r
10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
11  *******************************************************************************/\r
12 package org.simantics.scenegraph.g2d.events.command;\r
13 \r
14 import java.io.Serializable;\r
15 \r
16 /**\r
17  * \r
18  * @See {@link Commands} Default commands\r
19  * @See {@link CommandKeyBinding} Default command bindings\r
20  * \r
21  * @author Toni Kalajainen\r
22  */\r
23 public class Command implements Serializable {\r
24 \r
25     private static final long serialVersionUID = 9117246464320469783L;\r
26 \r
27     public final String id;\r
28 \r
29     public Command(String id) {\r
30         if (id == null)\r
31             throw new NullPointerException("null id");\r
32         this.id = id;\r
33     }\r
34 \r
35     @Override\r
36     public int hashCode() {\r
37         return id.hashCode();\r
38     }\r
39 \r
40     @Override\r
41     public boolean equals(Object obj) {\r
42         if (this == obj)\r
43             return true;\r
44         if (!(obj instanceof Command))\r
45             return false;\r
46         Command other = (Command) obj;\r
47         return id.equals(other.id);\r
48     }\r
49 \r
50     @Override\r
51     public String toString() {\r
52         return id;\r
53     }\r
54 \r
55 }\r