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Java > Open Source Codes > com > caucho > make > VersionDependency


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  * Free SoftwareFoundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.make;
30
31 import com.caucho.Version;
32 import com.caucho.vfs.PersistentDependency;
33
34 import java.util.logging.Logger JavaDoc;
35
36 /**
37  * Representing a Resin version.
38  */
39 public class VersionDependency implements PersistentDependency {
40   private final static Logger JavaDoc log
41     = Logger.getLogger(VersionDependency.class.getName());
42   
43   private String JavaDoc _version;
44
45   /**
46    * Creates the version dependency.
47    */
48   public VersionDependency(String JavaDoc version)
49   {
50     _version = version;
51   }
52
53   /**
54    * Creates the version dependency.
55    */
56   public VersionDependency()
57   {
58     _version = Version.FULL_VERSION;
59   }
60   
61   /**
62    * Returns true if the underlying resource has changed.
63    */
64   public boolean isModified()
65   {
66     return ! Version.FULL_VERSION.equals(_version);
67   }
68
69   /**
70    * Returns a string which will recreate the dependency.
71    */
72   public String JavaDoc getJavaCreateString()
73   {
74     return ("new com.caucho.make.VersionDependency(" +
75             "\"" + _version + "\")");
76   }
77 }
78
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