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/*
 * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */
package org.mule.module.launcher.util;

import java.beans.PropertyChangeEvent;

/**
*
*/
public abstract class ElementEvent extends PropertyChangeEvent
{
    public static final int ADDED = 0;
    public static final int UPDATED = 1;
    public static final int REMOVED = 2;
    public static final int CLEARED = 3;
    public static final int MULTI_ADD = 4;
    public static final int MULTI_REMOVE = 5;

    private static final String PROPERTY_NAME = "ObservableList__element";
    protected static final Object OLDVALUE = new Object();
    protected static final Object NEWVALUE = new Object();

    private int type;
    private int index;

    public ElementEvent(Object source, Object oldValue, Object newValue, int index, int type)
    {
        super(source, PROPERTY_NAME, oldValue, newValue);
        switch (type)
        {
            case ADDED :
            case UPDATED :
            case REMOVED :
            case CLEARED :
            case MULTI_ADD :
            case MULTI_REMOVE :
                this.type = type;
                break;
            default :
                this.type = UPDATED;
                break;
        }
        this.index = index;
    }

    public int getIndex()
    {
        return index;
    }

    public int getType()
    {
        return type;
    }

    public String getTypeAsString()
    {
        switch (type)
        {
            case ADDED :
                return "ADDED";
            case UPDATED :
                return "UPDATED";
            case REMOVED :
                return "REMOVED";
            case CLEARED :
                return "CLEARED";
            case MULTI_ADD :
                return "MULTI_ADD";
            case MULTI_REMOVE :
                return "MULTI_REMOVE";
            default :
                return "UPDATED";
        }
    }
}