/*
JValueObject.java
Base class for a new hierarchy of classes used to pass
callback data in the arlut.csd.JDataComponent package.
Formerly, this class was an all-in-one class that tried to encode a
bunch of different operations, with a mess of different
constructors and interpretations of parameters.
Now this class will serve as a base class, and all of the actual
data transport will be done by operation-specific subclasses.
Created: 28 Feb 1997
Module By: Navin Manohar
-----------------------------------------------------------------------
Ganymede Directory Management System
Copyright (C) 1996-2013
The University of Texas at Austin.
Ganymede is a registered trademark of The University of Texas at Austin
Contact information
Web site: http://www.arlut.utexas.edu/gash2
Author Email: ganymede_author@arlut.utexas.edu
Email mailing list: ganymede@arlut.utexas.edu
US Mail:
Computer Science Division
Applied Research Laboratories
The University of Texas at Austin
PO Box 8029, Austin TX 78713-8029
Telephone: (512) 835-3200
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package arlut.csd.JDataComponent;
import java.awt.*;
/*------------------------------------------------------------------------------
class
JValueObject
------------------------------------------------------------------------------*/
/**
* <p>A client-side message object used to pass status updates from
* GUI components in the arlut.csd.JDataComponent package to their
* containers. JValueObject supports passing information about scalar
* and vector value change operations, as well as pop-up menus and
* error messages.</p>
*
* <p>Base class for a new hierarchy of classes used to pass callback
* data in the arlut.csd.JDataComponent package.</p>
*
* <p>Formerly, this class was an all-in-one class that tried to
* encode a bunch of different operations, with a mess of different
* constructors and interpretations of parameters.</p>
*
* <p>Now this class will serve as a base class, and all of the actual
* data transport will be done by operation-specific subclasses.</p>
*
* <p>Note that we came up with this message type before Sun introduced
* the 1.1 AWT event model. Great minds... ;-)</p>
*
* @author Navin Manohar
*/
public abstract class JValueObject {
/**
* Returns the arlut.csd.JDataComponent GUI component that originated this message.
*/
public abstract Component getSource();
/**
* Returns an auxiliary value. Used for passing information about pop-up menu items, but may
* be used for different purposes if needed.
*/
public abstract Object getParameter();
/**
* Returns the index of an item operated on in a vector component.
*/
public abstract int getIndex();
/**
* Returns the index of an item operated on in a vector component.
*/
public abstract int getIndex2();
/**
* Returns the value of the object being affected by this message.
*/
public abstract Object getValue();
}