MessageHandler

java.lang.Object
- ptolemy.util.MessageHandler
- - ptolemy.gui.MessageHandler

All Implemented Interfaces:

java.lang.Thread.UncaughtExceptionHandler
```
@Deprecated
public class MessageHandler
extends MessageHandler
```
Deprecated.
Use ptolemy.util.MessageHandler.

This is a class that is used to report errors. It provides a set of static methods that are called to report errors. However, the actual reporting of the errors is deferred to an instance of this class that is set using the setMessageHandler() method. Normally there is only one instance, set up by the application, so the class is a singleton. But this is not enforced.
This base class simply writes the errors to System.err. When an applet or application starts up, it may wish to set a subclass of this class as the message handler, to allow a nicer way of reporting errors. For example, a swing application will probably want to report errors in a dialog box, using for example the derived class GraphicalMessageHandler.

Since:

Ptolemy II 1.0

Version:

$Id$

Author:

Edward A. Lee, Steve Neuendorffer

See Also:

GraphicalMessageHandler

Pt.AcceptedRating:

Yellow (janneck)

Pt.ProposedRating:

Yellow (eal)

- Constructor Summary
  
  Constructors
  Constructor Description
  
  MessageHandler()
  Deprecated.
- Method Summary
  - Methods inherited from class ptolemy.util.MessageHandler
    _error, _error, _message, _warning, _warning, _yesNoCancelQuestion, _yesNoQuestion, error, error, getMessageHandler, isNonInteractive, message, setMessageHandler, setStatusHandler, shortDescription, status, uncaughtException, warning, warning, yesNoCancelQuestion, yesNoCancelQuestion, yesNoQuestion
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - MessageHandler
```
public MessageHandler()
```
    Deprecated.