Description of the Adaptations of JORA for MulTEx
Author: Christoph Knabe, www.tfh-berlin.de/~knabe/
Date: 2001-05-10
The strategy of MulTEx,
the Multi-Tier Exception Handling Framework
is, to capture low level diagnostic information into exceptions,
that can be reported in upper tiers of a software system.
The following modifications were made to JORA:
- Any exception catching with immediate reporting in lower tiers
was transformed into adding
- diagnostic parameters and
- the causing exception
to a new Failure-exception.
- The Failure exceptions are named mostly by the operations which fail,
e.g. InsertFailure, if a SQL insert-statement fails.
- In class Session had to be introduced a new method closePreparedStatements(),
as without this with "Access 97" the tables could not be dropped.
- A new test program OidTest_Integer.java was created, which has a common base
class for all database objects, giving them a system-wide unique
OID (object identification number).
Here is the original documentation of Jora.