/*
* Copyright 2008-2011 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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jdal.swing.action;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Collection;
import java.util.Vector;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JComboBox;
import org.springframework.beans.BeanWrapper;
import org.springframework.beans.PropertyAccessorFactory;
/**
* Links two combos by a property name
*
* @author Jose Luis Martin - (jlm@joseluismartin.info)
*/
@SuppressWarnings("rawtypes")
public class ComboLinker implements ActionListener {
private JComboBox primary;
private JComboBox dependent;
private String propertyName;
public ComboLinker(JComboBox<?> primary, JComboBox<?> dependent, String propertyName) {
this.primary = primary;
this.dependent = dependent;
this.propertyName = propertyName;
primary.addActionListener(this);
}
/**
* {@inheritDoc}
* @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)
*/
@SuppressWarnings("unchecked")
public void actionPerformed(ActionEvent e) {
Object selected = primary.getSelectedItem();
if (selected != null) {
BeanWrapper wrapper = PropertyAccessorFactory.forBeanPropertyAccess(selected);
Collection<Object> collection = (Collection<Object>) wrapper.getPropertyValue(propertyName);
DefaultComboBoxModel model = new DefaultComboBoxModel(new Vector<Object>(collection));
dependent.setModel(model);
}
}
}