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 name;
46 protected Class type;
47
48 public MetaProperty(String name, Class 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 getProperty(Object object) throws Exception;
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 object, Object newValue);
67
68 public String getName() {
69 return name;
70 }
71
72 /***
73 * @return the type of the property
74 */
75 public Class getType() {
76 return type;
77 }
78
79 }