01: /*
02: * $Id: MetaArrayLengthProperty.java 4287 2006-12-01 13:00:13Z blackdrag $
03: *
04: * Copyright 2004 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
05: *
06: * Redistribution and use of this software and associated documentation
07: * ("Software"), with or without modification, are permitted provided that the
08: * following conditions are met:
09: * 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:
36: package groovy.lang;
37:
38: /**
39: * Represents a property on a bean which may have a getter and/or a setter
40: *
41: * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
42: * @version $Revision: 4287 $
43: */
44: public class MetaArrayLengthProperty extends MetaProperty {
45:
46: public MetaArrayLengthProperty() {
47: super ("length", int.class);
48: }
49:
50: /**
51: * @return the property of the given object
52: * @throws Exception if the property could not be evaluated
53: */
54: public Object getProperty(Object object) {
55: return new Integer(java.lang.reflect.Array.getLength(object));
56: }
57:
58: /**
59: * Sets the property on the given object to the new value
60: *
61: * @param object on which to set the property
62: * @param newValue the new value of the property
63: * @throws RuntimeException if the property could not be set
64: */
65: public void setProperty(Object object, Object newValue) {
66: throw new ReadOnlyPropertyException("length", object.getClass());
67: }
68: }
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