ptolemy.util
Class CancelException

java.lang.Object
  java.lang.Throwable
      java.lang.Exception
          ptolemy.util.CancelException

All Implemented Interfaces:

java.io.Serializable

public class CancelException
extends java.lang.Exception

An exception that is not reported to the user. This exception can be used to cancel an ongoing operation. It works together with MessageHandler, where it might be thrown when the user clicks "cancel" in a dialog box. Throwing an exception allows the execution environment to unwind the stack, cancelling operations that may only lead to an endless stream of warnings or errors. This class is really just a marker, and is intended to not be reported to the user.

Since:

Ptolemy II 4.0

Version:

$Id: CancelException.java 38916 2005-07-14 20:45:06Z cxh $

Author:

Edward A. Lee

See Also:

MessageHandler, Serialized Form

Accepted Rating:

Green (janneck)

Proposed Rating:

Green (eal)

Constructor Summary

CancelException()
Construct an exception with a default message.

CancelException(java.lang.String message)
Construct an exception with the specified message.

Method Summary

Methods inherited from class java.lang.Throwable

fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

CancelException

public CancelException()

Construct an exception with a default message.

CancelException

public CancelException(java.lang.String message)

Construct an exception with the specified message.

Parameters:

message - The message.