/*
 * Copyright (c) 1999, 2006, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */

package javax.accessibility;

/**
 * The AccessibleTableModelChange interface describes a change to
 * the table model.  The attributes of the model change can be
 * obtained by the following methods:
 * <ul>
 * <li> public int getType()
 * <li> public int getFirstRow();
 * <li> public int getLastRow();
 * <li> public int getFirstColumn();
 * <li> public int getLastColumn();
 * </ul>
 * The model change type returned by getType() will be one of:
 * <ul>
 * <li> INSERT - one or more rows and/or columns have been inserted
 * <li> UPDATE - some of the table data has changed
 * <li> DELETE - one or more rows and/or columns have been deleted
 * </ul>
 * The affected area of the table can be determined by the other
 * four methods which specify ranges of rows and columns
 *
 * @see Accessible
 * @see Accessible#getAccessibleContext
 * @see AccessibleContext
 * @see AccessibleContext#getAccessibleTable
 *
 * @author	Lynn Monsanto
 * @since 1.3
 */
public interface AccessibleTableModelChange {

    /** 
     * Identifies the insertion of new rows and/or columns. 
     */
    public static final int INSERT =  1;

    /** 
     * Identifies a change to existing data. 
     */
    public static final int UPDATE =  0;

    /** 
     * Identifies the deletion of rows and/or columns. 
     */
    public static final int DELETE = -1;
    
    /**
     *  Returns the type of event
     *
     *  @see #INSERT
     *  @see #UPDATE
     *  @see #DELETE
     */
    public int getType();

    /** 
     * Returns the first row that changed.
     */
    public int getFirstRow();
    
    /** 
     * Returns the last row that changed. 
     */
    public int getLastRow();
    
    /** 
     * Returns the first column that changed.
     */
    public int getFirstColumn();
    
    /** 
     * Returns the last column that changed. 
     */
    public int getLastColumn();
}