001 /*
002 $Id: PropertyModel.java,v 1.1 2003/10/24 12:47:15 jstrachan Exp $
003
004 Copyright 2003 (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
008 that the following conditions are met:
009
010 1. Redistributions of source code must retain copyright
011 statements and notices. Redistributions must also contain a
012 copy of this document.
013
014 2. Redistributions in binary form must reproduce the
015 above copyright notice, this list of conditions and the
016 following disclaimer in the documentation and/or other
017 materials provided with the distribution.
018
019 3. The name "groovy" must not be used to endorse or promote
020 products derived from this Software without prior written
021 permission of The Codehaus. For written permission,
022 please contact info@codehaus.org.
023
024 4. Products derived from this Software may not be called "groovy"
025 nor may "groovy" appear in their names without prior written
026 permission of The Codehaus. "groovy" is a registered
027 trademark of The Codehaus.
028
029 5. Due credit should be given to The Codehaus -
030 http://groovy.codehaus.org/
031
032 THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
033 ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
034 NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
035 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
036 THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
037 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
038 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
039 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
040 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
041 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
042 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
043 OF THE POSSIBILITY OF SUCH DAMAGE.
044
045 */
046 package groovy.model;
047
048 import org.codehaus.groovy.runtime.InvokerHelper;
049
050 /**
051 * Represents a property of a value as a model.
052 *
053 * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
054 * @version $Revision: 1.1 $
055 */
056 public class PropertyModel implements ValueModel, NestedValueModel {
057
058 private ValueModel sourceModel;
059 private String property;
060 private Class type;
061
062 public PropertyModel(ValueModel sourceModel, String property) {
063 this(sourceModel, property, Object.class);
064 }
065
066 public PropertyModel(ValueModel sourceModel, String property, Class type) {
067 this.sourceModel = sourceModel;
068 this.property = property;
069 this.type = type;
070 }
071
072 public String getProperty() {
073 return property;
074 }
075
076 public ValueModel getSourceModel() {
077 return sourceModel;
078 }
079
080 public Object getValue() {
081 Object source = sourceModel.getValue();
082 if (source != null) {
083 return InvokerHelper.getProperty(source, property);
084 }
085 return null;
086 }
087
088 public void setValue(Object value) {
089 Object source = sourceModel.getValue();
090 if (source != null) {
091 InvokerHelper.setProperty(source, property, value);
092 }
093 }
094
095 public Class getType() {
096 return type;
097 }
098
099 public boolean isEditable() {
100 /** @todo implement this! */
101 return true;
102 }
103
104 }