User's Guide for MulTEx - The Multi Tier Exception Handling Framework

Software version 8.4

Christoph Knabe

BHT Berlin
 Berlin University of Applied Sciences and Technology

2022-01-07

Table of Contents

Introduce Central Exception Reporting
Reporting in Command Line Applications
Reporting in Swing Applications
Reporting in JSP Applications
Reporting in background threads
How to introduce/use MulTEx in the API layers
What is a MulTEx exception?
How to declare a MulTEx exception with an internationalizable message text pattern
How to imlement negative business rules by throwing Exc-objects
How to implement exception chaining by throwing a Failure object
How to cope with many Failure causes (list exceptions, exception treeing)

The main goal of this user's guide is to tell, how to quickly introduce robust and diagnostic exception handling and reporting into a Java software system.

These hints are easier to follow, if you are writing a software system from scratch, but can be applied onto existing software, as well.

You should introduce it according to these priorities:

  1. introduce central exception reporting,

  2. assure exception propagation to the highest possible level,

  3. provide all exceptions with diagnostic parameters,

  4. provide natural message texts for all execptions.

     Next