001    /*
002     * $Id: MetaExpandoProperty.java,v 1.2 2005/06/10 09:55:28 cstein Exp $
003     *
004     * Copyright 2004 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
005     *
006     * Redistribution and use of this software and associated documentation
007     * ("Software"), with or without modification, are permitted provided that the
008     * following conditions are met:
009     *  1. Redistributions of source code must retain copyright statements and
010     * notices. Redistributions must also contain a copy of this document.
011     *  2. Redistributions in binary form must reproduce the above copyright
012     * notice, this list of conditions and the following disclaimer in the
013     * documentation and/or other materials provided with the distribution.
014     *  3. The name "groovy" must not be used to endorse or promote products
015     * derived from this Software without prior written permission of The Codehaus.
016     * For written permission, please contact info@codehaus.org.
017     *  4. Products derived from this Software may not be called "groovy" nor may
018     * "groovy" appear in their names without prior written permission of The
019     * Codehaus. "groovy" is a registered trademark of The Codehaus.
020     *  5. Due credit should be given to The Codehaus - http://groovy.codehaus.org/
021     *
022     * THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS ``AS IS'' AND ANY
023     * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
024     * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
025     * DISCLAIMED. IN NO EVENT SHALL THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR
026     * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
027     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
028     * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
029     * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
030     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
031     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
032     * DAMAGE.
033     *
034     */
035     
036    package groovy.lang;
037    
038    import java.util.Map.Entry;
039    
040    /**
041     * Represents a property in an Expando object
042     * 
043     * @author John Stump
044     * @version $Revision: 1.2 $
045     */
046    public class MetaExpandoProperty extends MetaProperty {
047    
048            Object value = null;
049            
050        public MetaExpandoProperty(Entry entry) {
051                    super((String) entry.getKey(), Object.class);
052                    
053                    value = entry.getValue();
054        }
055    
056        /**
057         * @return the property of the given object
058         * @throws Exception if the property could not be evaluated
059         */
060        public Object getProperty(Object object) throws Exception {
061                    return value;
062            }
063    
064        /**
065         * Sets the property on the given object to the new value
066         * 
067         * @param object on which to set the property
068         * @param newValue the new value of the property
069         * @throws Exception if the property could not be set
070         */
071        public void setProperty(Object object, Object newValue) {
072                    value = newValue;
073            }
074    }