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 }