package org.catacomb.be;
   
   
   public class ChangeEvent {
   
       String type;
       Object src;
   
       int count;
  
      private static int counter = 0;
  
  
      // REFAC - clearer
  
      private ChangeEvent() {
          count = counter;
      }
  
      public ChangeEvent(String s, Object obj) {
          type = s;
          src = obj;
          count = counter;
          counter += 1;
      }
  
  
      public Object getSource() {
          return src;
      }
  
      private ChangeEvent(ChangeEvent ce) {
          count = ce.count;
          src = ce.src;
          type = ce.type;
      }
  
      public ChangeEvent makeCopy() {
          return new ChangeEvent(this);
      }
  
  
      public boolean laterThan(ChangeEvent ce) {
          return (ce == null || count > ce.count);
      }
  
  
  }