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Cayenne Object Persistence Framework

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package org.apache.cayenne.dataview;

import java.util.EventListener;
import java.util.EventObject;

public abstract class DispatchableEvent extends EventObject {

  public DispatchableEvent(Object source) {
    super(source);
  }

  public abstract void dispatch(EventListener listener);

  public String toString() {
    String cn = getClass().getName();
    return cn.substring(cn.lastIndexOf('.')+1) +  "[" + paramString() + "]";
  }

  protected String paramString() {
    return "";
  }

}