/* AccessibleTableModelChange.java -- describes change to an accessible table
   Copyright (C) 2002 Free Software Foundation, Inc.

This file is part of GNU Classpath.

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As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
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package javax.accessibility;

/**
 * Describes a change to an accessible table. Accessibility software can use
 * the implementations of this interface to update their state after a
 * change to a table.
 *
 * @author Eric Blake <ebb9@email.byu.edu>
 * @see Accessible
 * @see AccessibleContext
 * @see AccessibleContext#getAccessibleTable()
 * @see AccessibleTable
 * @since 1.2
 * @status updated to 1.4
 */
public interface AccessibleTableModelChange
{
  /** Identifies insertion of rows or columns. */
  int INSERT = 1;

  /** Identifies change to existing data. */
  int UPDATE = 0;

  /** Identifies deletion of rows or columns. */
  int DELETE = -1;

  /**
   * Returns the change type.
   *
   * @return the type
   * @see #INSERT
   * @see #UPDATE
   * @see #DELETE
   */
  int getType();

  /**
   * Returns the first row that changed.
   *
   * @return the 0-based index of the first row to change
   */
  int getFirstRow();

  /**
   * Returns the last row that changed.
   *
   * @return the 0-based index of the last row to change
   */
  int getLastRow();

  /**
   * Returns the first column that changed.
   *
   * @return the 0-based index of the first column to change
   */
  int getFirstColumn();

  /**
   * Returns the last column that changed.
   *
   * @return the 0-based index of the last column to change
   */
  int getLastColumn();
} // interface AccessibleTableModelChange
