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   *   Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you 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
   *
   *    https://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
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   ****************************************************************/
  
  package org.apache.cayenne.swing;
  
  import java.awt.Component;
  import java.beans.PropertyChangeEvent;
  import java.beans.PropertyChangeListener;
  
  /**
   * A binding for connecting to children that implement BoundComponent.
   * 
   * @since 1.2
   */
  public class PropertyBinding extends BindingBase {
  
      protected BoundComponent boundComponent;
      protected String boundExpression;
  
      public PropertyBinding(BoundComponent boundComponent, String propertyExpression,
              String boundExpression) {
          super(propertyExpression);
  
          this.boundExpression = boundExpression;
          this.boundComponent = boundComponent;
          this.boundComponent.addPropertyChangeListener(boundExpression,
                  new PropertyChangeListener() {
  
                      public void propertyChange(PropertyChangeEvent event) {
                          setValue(event.getNewValue());
                      }
  
                  });
      }
  
      public Component getView() {
          return boundComponent.getView();
      }
  
      public void updateView() {
          boundComponent.bindingUpdated(boundExpression, getValue());
      }
  }
  