KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > groovy > lang > MetaProperty


1 /*
2  * $Id: MetaProperty.java,v 1.2 2004/07/13 19:43:07 jstrachan Exp $
3  *
4  * Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
5  *
6  * Redistribution and use of this software and associated documentation
7  * ("Software"), with or without modification, are permitted provided that the
8  * following conditions are met:
9  * 1. Redistributions of source code must retain copyright statements and
10  * notices. Redistributions must also contain a copy of this document.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  * notice, this list of conditions and the following disclaimer in the
13  * documentation and/or other materials provided with the distribution.
14  * 3. The name "groovy" must not be used to endorse or promote products
15  * derived from this Software without prior written permission of The Codehaus.
16  * For written permission, please contact info@codehaus.org.
17  * 4. Products derived from this Software may not be called "groovy" nor may
18  * "groovy" appear in their names without prior written permission of The
19  * Codehaus. "groovy" is a registered trademark of The Codehaus.
20  * 5. Due credit should be given to The Codehaus - http://groovy.codehaus.org/
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS ``AS IS'' AND ANY
23  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
24  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
25  * DISCLAIMED. IN NO EVENT SHALL THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR
26  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
28  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
29  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
32  * DAMAGE.
33  *
34  */
35 package groovy.lang;
36
37 /**
38  * Represents a property on a bean which may have a getter and/or a setter
39  *
40  * @author <a HREF="mailto:james@coredevelopers.net">James Strachan</a>
41  * @version $Revision: 1.2 $
42  */
43 public abstract class MetaProperty {
44
45     protected String JavaDoc name;
46     protected Class JavaDoc type;
47
48     public MetaProperty(String JavaDoc name, Class JavaDoc type) {
49         this.name = name;
50         this.type = type;
51     }
52
53     /**
54      * @return the property of the given object
55      * @throws Exception if the property could not be evaluated
56      */
57     public abstract Object JavaDoc getProperty(Object JavaDoc object) throws Exception JavaDoc;
58
59     /**
60      * Sets the property on the given object to the new value
61      *
62      * @param object on which to set the property
63      * @param newValue the new value of the property
64      * @throws Exception if the property could not be set
65      */
66     public abstract void setProperty(Object JavaDoc object, Object JavaDoc newValue);
67
68     public String JavaDoc getName() {
69         return name;
70     }
71
72     /**
73      * @return the type of the property
74      */
75     public Class JavaDoc getType() {
76         return type;
77     }
78
79 }
80
Popular Tags