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Java > Open Source Codes > com > idaremedia > antx > condition > NoneSet


1 /**
2  * $Id: NoneSet.java 180 2007-03-15 12:56:38Z ssmc $
3  * Copyright 2002-2003 iDare Media, Inc. All rights reserved.
4  *
5  * Originally written by iDare Media, Inc. for release into the public domain. This
6  * library, source form and binary form, is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public License as published by the
8  * Free Software Foundation; either version 2.1 of the License, or (at your option) any
9  * later version.<p>
10  *
11  * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
12  * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13  * See the GNU LGPL (GNU Lesser General Public License) for more details.<p>
14  *
15  * You should have received a copy of the GNU Lesser General Public License along with this
16  * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite
17  * 330, Boston, MA 02111-1307 USA. The LGPL can be found online at
18  * http://www.fsf.org/copyleft/lesser.html<p>
19  *
20  * This product has been influenced by several projects within the open-source community.
21  * The JWare developers wish to acknowledge the open-source community's support. For more
22  * information regarding the open-source products used within JWare, please visit the
23  * JWare website.
24  *----------------------------------------------------------------------------------------*
25  * WEBSITE- http://www.jware.info EMAIL- inquiries@jware.info
26  *----------------------------------------------------------------------------------------*
27  **/
28
29 package com.idaremedia.antx.condition;
30
31 import org.apache.tools.ant.Project;
32
33 import com.idaremedia.antx.AntX;
34
35 /**
36  * Shortcut condition that returns <i>true</i> if none of the nested items (properties,
37  * variables, references, etc.) are set in the project's environment. Example usage:<pre>
38  * &lt;tally&gt;
39  * &lt;<b>noneset</b> trueproperty="clean.beginning"&gt;
40  * &lt;property name="build.number/&gt;
41  * &lt;property name="scrub.disable/&gt;
42  * &lt;/noneset&gt;
43  * &lt;/tally&gt;
44  * </pre>
45  *
46  * @since JWare/AntX 0.2
47  * @author ssmc, &copy;2002-2003 <a HREF="http://www.jware.info">iDare&nbsp;Media,&nbsp;Inc.</a>
48  * @version 0.5
49  * @.safety single
50  * @.group api,infra
51  * @see IsNotSet
52  * @see AnySet
53  **/
54
55 public final class NoneSet extends CheckSetCondition implements URIable
56 {
57     /**
58      * Initializes new NoneSet condition; defaults to
59      * returning <i>false</i>.
60      **/
61     public NoneSet()
62     {
63         super(AntX.rules+"noneset");
64         setNegate(true);
65     }
66
67
68
69     /**
70      * Initializes a filled-in NoneSet instance.
71      * @param properties comma-delimited list of properties (non-null)
72      * @param P condition's project
73      **/
74     public NoneSet(String JavaDoc properties, Project P)
75     {
76         super(AntX.rules+"noneset",properties,P);
77         setNegate(true);
78     }
79
80
81
82     /**
83      * Sets this condition's list of properties as part of
84      * a value URI.
85      * @param fragment the value uri bits (non-null)
86      * @since JWare/AntX 0.5
87      */
88     public void xsetFromURI(String JavaDoc fragment)
89     {
90         xsetFromURIFragment(fragment);
91     }
92 }
93
94 /* end-of-NoneSet.java */
95
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