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package javax.swing.event;

import java.util.EventObject;



Defines an event that encapsulates changes to a list.


Warning:
Serialized objects of this class will not be compatible with
future Swing releases. The current serialization support is
appropriate for short term storage or RMI between applications running
the same version of Swing.  As of 1.4, support for long term storage
of all JavaBeans™
has been added to the java.beans package. Please see XMLEncoder. 
Author:Hans Muller
/**
 * Defines an event that encapsulates changes to a list.
 * <p>
 * <strong>Warning:</strong>
 * Serialized objects of this class will not be compatible with
 * future Swing releases. The current serialization support is
 * appropriate for short term storage or RMI between applications running
 * the same version of Swing.  As of 1.4, support for long term storage
 * of all JavaBeans&trade;
 * has been added to the <code>java.beans</code> package.
 * Please see {@link java.beans.XMLEncoder}.
 *
 * @author Hans Muller
 */
@SuppressWarnings("serial")
public class ListDataEvent extends EventObject
{
    
Identifies one or more changes in the lists contents. 
/** Identifies one or more changes in the lists contents. */
    public static final int CONTENTS_CHANGED = 0;
    
Identifies the addition of one or more contiguous items to the list 
/** Identifies the addition of one or more contiguous items to the list */
    public static final int INTERVAL_ADDED = 1;
    
Identifies the removal of one or more contiguous items from the list 
/** Identifies the removal of one or more contiguous items from the list */
    public static final int INTERVAL_REMOVED = 2;

    private int type;
    private int index0;
    private int index1;

    
Returns the event type. The possible values are:


Returns:an int representing the type value
/**
     * Returns the event type. The possible values are:
     * <ul>
     * <li> {@link #CONTENTS_CHANGED}
     * <li> {@link #INTERVAL_ADDED}
     * <li> {@link #INTERVAL_REMOVED}
     * </ul>
     *
     * @return an int representing the type value
     */
    public int getType() { return type; }

    
Returns the lower index of the range. For a single element, this value is the same as that returned by getIndex1. 
Returns:an int representing the lower index value
/**
     * Returns the lower index of the range. For a single
     * element, this value is the same as that returned by {@link #getIndex1}.

     *
     * @return an int representing the lower index value
     */
    public int getIndex0() { return index0; }
    
Returns the upper index of the range. For a single element, this value is the same as that returned by getIndex0. 
Returns:an int representing the upper index value
/**
     * Returns the upper index of the range. For a single
     * element, this value is the same as that returned by {@link #getIndex0}.
     *
     * @return an int representing the upper index value
     */
    public int getIndex1() { return index1; }

    
Constructs a ListDataEvent object. If index0 is >
index1, index0 and index1 will be swapped such that
index0 will always be <= index1.

Params:
/**
     * Constructs a ListDataEvent object. If index0 is &gt;
     * index1, index0 and index1 will be swapped such that
     * index0 will always be &lt;= index1.
     *
     * @param source  the source Object (typically <code>this</code>)
     * @param type    an int specifying {@link #CONTENTS_CHANGED},
     *                {@link #INTERVAL_ADDED}, or {@link #INTERVAL_REMOVED}
     * @param index0  one end of the new interval
     * @param index1  the other end of the new interval
     */
    public ListDataEvent(Object source, int type, int index0, int index1) {
        super(source);
        this.type = type;
        this.index0 = Math.min(index0, index1);
        this.index1 = Math.max(index0, index1);
    }

    
Returns a string representation of this ListDataEvent. This method
is intended to be used only for debugging purposes, and the
content and format of the returned string may vary between
implementations. The returned string may be empty but may not
be null.

Since:1.4
Returns: a string representation of this ListDataEvent.
/**
     * Returns a string representation of this ListDataEvent. This method
     * is intended to be used only for debugging purposes, and the
     * content and format of the returned string may vary between
     * implementations. The returned string may be empty but may not
     * be <code>null</code>.
     *
     * @since 1.4
     * @return  a string representation of this ListDataEvent.
     */
    public String toString() {
        return getClass().getName() +
        "[type=" + type +
        ",index0=" + index0 +
        ",index1=" + index1 + "]";
    }
}