001: /*
002: $Id: PropertyModel.java 209 2003-10-24 12:47:18Z jstrachan $
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: 209 $
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,
067: Class type) {
068: this .sourceModel = sourceModel;
069: this .property = property;
070: this .type = type;
071: }
072:
073: public String getProperty() {
074: return property;
075: }
076:
077: public ValueModel getSourceModel() {
078: return sourceModel;
079: }
080:
081: public Object getValue() {
082: Object source = sourceModel.getValue();
083: if (source != null) {
084: return InvokerHelper.getProperty(source, property);
085: }
086: return null;
087: }
088:
089: public void setValue(Object value) {
090: Object source = sourceModel.getValue();
091: if (source != null) {
092: InvokerHelper.setProperty(source, property, value);
093: }
094: }
095:
096: public Class getType() {
097: return type;
098: }
099:
100: public boolean isEditable() {
101: /** @todo implement this! */
102: return true;
103: }
104:
105: }
|