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Cayenne Object Persistence Framework

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 *  or more contributor license agreements.  See the NOTICE file
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 *  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
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package org.apache.cayenne.dataview;

import java.util.EventListener;

public class DataObjectChangeEvent extends DispatchableEvent {
  public static final int DATAOBJECT_ADDED         = 1;
  public static final int DATAOBJECT_REMOVED       = 2;
  public static final int DATAOBJECT_CHANGED       = 3;
  public static final int DATAOBJECTS_CHANGED      = 4;

  private int id;
  private int affectedDataObjectIndex;

  public DataObjectChangeEvent(Object source, int id) {
    this(source, id, -1);
  }

  public DataObjectChangeEvent(Object source, int id, int affectedDataObjectIndex) {
    super(source);
    this.id = id;
    this.affectedDataObjectIndex = affectedDataObjectIndex;
  }

  public void dispatch(EventListener listener) {
    ((DataObjectChangeListener)listener).dataChanged(this);
  }


  public boolean isMultiObjectChange() {
    return affectedDataObjectIndex == -1;
  }

  public int getAffectedDataObjectIndex() {
    return affectedDataObjectIndex;
  }

  public final int    getId() {
    return id;
  }

  public String toString() {
    return super.toString()+" "+id;
  }
}