1 /* 2 * $Id: MetaArrayLengthProperty.java,v 1.1 2004/07/16 19:43:11 jstump Exp $ 3 * 4 * Copyright 2004 (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 36 package groovy.lang; 37 38 39 /*** 40 * Represents a property on a bean which may have a getter and/or a setter 41 * 42 * @author <a href="mailto:james@coredevelopers.net">James Strachan</a> 43 * @version $Revision: 1.1 $ 44 */ 45 public class MetaArrayLengthProperty extends MetaProperty { 46 47 public MetaArrayLengthProperty() { 48 super("length", int.class); 49 } 50 51 /*** 52 * @return the property of the given object 53 * @throws Exception if the property could not be evaluated 54 */ 55 public Object getProperty(Object object) throws Exception { 56 return new Integer(java.lang.reflect.Array.getLength(object)); 57 } 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 void setProperty(Object object, Object newValue) { 67 throw new ReadOnlyPropertyException("length", object.getClass()); 68 } 69 }