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package javax.swing.event;

import java.util.EventObject;
import javax.swing.table.*;

TableColumnModelEvent is used to notify listeners that a table
column model has changed, such as a column was added, removed, or
moved.

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:
Alan Chung
See Also:
TableColumnModelListener/**
 * <B>TableColumnModelEvent</B> is used to notify listeners that a table
 * column model has changed, such as a column was added, removed, or
 * moved.
 * <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 Alan Chung
 * @see TableColumnModelListener
 */
@SuppressWarnings("serial") // Same-version serialization only
public class TableColumnModelEvent extends java.util.EventObject
{
//
//  Instance Variables
//

    
The index of the column from where it was moved or removed /** The index of the column from where it was moved or removed */
    protected int       fromIndex;

    
The index of the column to where it was moved or added /** The index of the column to where it was moved or added */
    protected int       toIndex;

//
// Constructors
//

    
Constructs a TableColumnModelEvent object. 
Params:
source –  the TableColumnModel that originated the event
from –    an int specifying the index from where the column was
               moved or removed
to –      an int specifying the index to where the column was
               moved or added
See Also:
getFromIndex
getToIndex/**
     * Constructs a {@code TableColumnModelEvent} object.
     *
     * @param source  the {@code TableColumnModel} that originated the event
     * @param from    an int specifying the index from where the column was
     *                moved or removed
     * @param to      an int specifying the index to where the column was
     *                moved or added
     * @see #getFromIndex
     * @see #getToIndex
     */
    public TableColumnModelEvent(TableColumnModel source, int from, int to) {
        super(source);
        fromIndex = from;
        toIndex = to;
    }

//
// Querying Methods
//

    
Returns the fromIndex.  Valid for removed or moved events
Returns:
int value for index from which the column was moved or removed/**
     * Returns the fromIndex.  Valid for removed or moved events
     *
     * @return int value for index from which the column was moved or removed
     */
    public int getFromIndex() { return fromIndex; };

    
Returns the toIndex.  Valid for add and moved events
Returns:
int value of column's new index/**
     * Returns the toIndex.  Valid for add and moved events
     *
     * @return int value of column's new index
     */
    public int getToIndex() { return toIndex; };
}