BOR Types and ABAP Classes

[Kjetil Kilhavn]

The CREATE PRIVATE property means there must be a method you can call to
create an object of the superclass.
Only protected attributes are available in subclasses.
-- 
Kjetil Kilhavn, Statoil KTJ IT BKS
 

________________________________

From: sap-wug-bounces at mit.edu [mailto:sap-wug-bounces at mit.edu] On Behalf
Of Bibby, David
Sent: 10. juni 2005 17:36
To: SAP Workflow Users' Group
Subject: BOR Types and ABAP Classes



Hello All, 
I've never used workflows with ABAP classes before but I am currently
implementing a SAP standard workflow that uses just such a thing.

However I need to make changes to this class. 
I have created a subclass and defined it's superclass as the one the
workflow uses. 
However, as the attributes of the superclass are Private they seem to be
unavailable to my subclass. 

Also when I try to activate my subclass I get the error 
"The superclass has the property 'CREATE PRIVATE'. You cannot create an 
instance of the subclass. This can only be changed if the subclass is a

friend of the superclass.       "       

Making the subclass a friend of the superclass would be making a SAP
modification. 

As there appears to be no delegation like there are with BOR Types, how
are we supposed to use/extend standard SAP ABAP Classes ?

Many Thanks 
David 

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