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Groovy example source code file (

This example Groovy source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

class, class, nestedvaluemodel, object, object, propertymodel, propertymodel, string, string, valuemodel

The Groovy source code

 * Copyright 2003-2007 the original author or authors.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package groovy.model;

import org.codehaus.groovy.runtime.InvokerHelper;

 * Represents a property of a value as a model.
 * @author <a href="">James Strachan
 * @version $Revision: 7054 $
public class PropertyModel implements ValueModel, NestedValueModel {

    private ValueModel sourceModel;
    private String property;
    private Class type;
    boolean editable;

    public PropertyModel(ValueModel sourceModel, String property) {
        this(sourceModel, property, Object.class, true);

    public PropertyModel(ValueModel sourceModel, String property, Class type) {
        this(sourceModel, property, type, true);

    public PropertyModel(ValueModel sourceModel, String property, Class type, boolean editable) {
        this.sourceModel = sourceModel; = property;
        this.type = type;
        //TODO After 1.1 we should introspect the meta property and set editable to false if the property is read only
        this.editable = editable;

    public String getProperty() {
        return property;

    public ValueModel getSourceModel() {
        return sourceModel;

    public Object getValue() {
        Object source = sourceModel.getValue();
        if (source != null) {
            return InvokerHelper.getProperty(source, property);
        return null;

    public void setValue(Object value) {
        Object source = sourceModel.getValue();
        if (source != null) {
            InvokerHelper.setProperty(source, property, value);
    public Class getType() {
        return type;

    public boolean isEditable() {
        return editable;


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