scale.common
Class Exception

java.lang.Object
  java.lang.Throwable
      java.lang.Exception
          scale.common.Exception

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

InvalidException

public class Exception
extends java.lang.Exception

The base class for exceptions thrown by the Scale system.

$Id: Exception.java,v 1.14 2005-02-07 21:28:21 burrill Exp $

Copyright 2008 by the Scale Compiler Group,
Department of Computer Science
University of Massachusetts,
Amherst MA. 01003, USA
All Rights Reserved.

Using this base class aids Scale in standardizing the appearance of all its exception messages.

Exceptions are checked and must appear in the signature of the method that throws them.

To define a new exception, a developer should define a new class that inherits either from this class or one of its descendents and write a constructor which can be used in a throw statement.

See Also:

Serialized Form

Constructor Summary

Exception(java.lang.String info)

Method Summary

void	handler() Displays the exception and the java execution stack.

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

Exception

public Exception(java.lang.String info)

Parameters:

info - - information about the exception

Method Detail

handler

public void handler()

Displays the exception and the java execution stack.