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  package org.apache.cayenne.swing;
  
  import java.awt.Component;
  import java.beans.PropertyChangeListener;
  
  /**
   * An API for a binding child that allows to establish bindings to custom Swing
   * components.
   * 
   * @since 1.2
   */
  public interface BoundComponent {
  
      /**
       * Processes value pushed from parent.
       */
      void bindingUpdated(String expression, Object newValue);
  
      /**
       * Adds a property change listener to be notified of property updates.
       */
      // TODO: andrus, 04/8/2006 - declaring this method in the interface is redundant...
      // property "add*" methods can be discoverd via Bean introspection. See
      // BeanActionBinding for details.
      void addPropertyChangeListener(String expression, PropertyChangeListener listener);
  
      /**
       * Returns bound view component.
       */
      Component getView();
  }
  