ABAP OO and Workflow (Events, Get a handle etc)
Dart, Jocelyn
jocelyn.dart at sap.com
Wed May 10 20:10:27 EDT 2006
Markus,
Your wrapper function should do a CREATE OBJECT statement..... this does
work.
Leave the LPOR methods to internal workflow.
Regards,
Jocelyn Dart
Senior Consultant
SAP Australia Pty Ltd.
Level 1/168 Walker St.
North Sydney
NSW, 2060
Australia
T +61 412 390 267
M + 61 412 390 267
E jocelyn.dart at sap.com
http://www.sap.com <http://www.sap.com/>
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From: sap-wug-bounces at mit.edu [mailto:sap-wug-bounces at mit.edu] On Behalf
Of Markus Klein
Sent: Wednesday, 10 May 2006 6:00 PM
To: SAP Workflow Users' Group
Subject: RE: ABAP OO and Workflow (Events, Get a handle etc)
Hello,
1.) This is exactly what i have done. I developed a wrapper method
(static) which calls the find~by~lpor method. This wrapper method is
implemented in a task in my workflow and returns an instance.
Unfortunatelly the returned instance is always initial in my workflow
even tho the key which gets passted to the task is a valid key. As the
task is exectuted by the background user wf-batch i cant debug it. So
its hard to figure what is running wrong :( ....
regards,
Markus
______________________________________
ABS Team GmbH
SAP-Consulting, Human Capital Management
Muehlenweg 65
37120 Bovenden
Markus Klein
SAP Consultant
eMail: klein at abs-team.de
Tel.: +49 551 820 33 0
Mobil: +49 151 126 23 047
Fax: +49 551 820 33 99
www.abs-team.com <http://www.abs-team.com/>
________________________________
From: sap-wug-bounces at mit.edu [mailto:sap-wug-bounces at mit.edu] On Behalf
Of Dart, Jocelyn
Sent: Wednesday, May 10, 2006 9:27 AM
To: SAP Workflow Users' Group
Subject: RE: ABAP OO and Workflow (Events, Get a handle etc)
Restrictions in 6.20 are:
* No functional methods (which is sad but you'll live)
* Some small changes in persistent object handling (again sad but
liveable).
1. Always add a CREATEINSTANCE static method to your ABAP OO object.
This method should accept in your object key, do a create object step,
and catch any exceptions (e.g. object does not exist) and return the
object in a returning parameter. You can then call the CREATEINSTANCE
step in a task. Double check your binding - I often find it easier to
bind directly to the returning parameter rather than use the _WI_Object
element.
Note: You are not permitted to call the Constructor method directly in a
task, and likewise leave all the LPOR stuff alone -that's for internal
use by the workflow engine only. In NW04s you don't even get to choose
those methods when you create a task so best not to touch them at all.
2. Absolutely use ABAP OO Events. You should only use BOR events if you
have an SAP provided BOR object and no way of raising an OO event due to
the way that applications config works.
Change documents let you raise ABAP OO events without any problems at
all... and of course you can always raise ABAP OO events from user
exits, BADIs, custom programs, etc.
Regards,
Jocelyn Dart
Senior Consultant
SAP Australia Pty Ltd.
Level 1/168 Walker St.
North Sydney
NSW, 2060
Australia
T +61 412 390 267
M + 61 412 390 267
E jocelyn.dart at sap.com
http://www.sap.com <http://www.sap.com/>
The information contained in or attached to this electronic transmission
is confidential and may be legally privileged. It is intended only for
the person or entity to which it is addressed. If you are not the
intended recipient, you are hereby notified that any distribution,
copying, review, retransmission, dissemination or other use of this
electronic transmission or the information contained in it is strictly
prohibited. If you have received this electronic transmission in error,
please immediately contact the sender to arrange for the return of the
original documents.
Electronic transmission cannot be guaranteed to be secure and
accordingly, the sender does not accept liability for any such data
corruption, interception, unauthorized amendment, viruses, delays or the
consequences thereof.
Any views expressed in this electronic transmission are those of the
individual sender, except where the message states otherwise and the
sender is authorized to state them to be the views of SAP AG or any of
its subsidiaries. SAP AG, its subsidiaries, and their directors,
officers and employees make no representation nor accept any liability
for the accuracy or completeness of the views or information contained
herein. Please be aware that the furnishing of any pricing information/
business proposal herein is indicative only, is subject to change and
shall not be construed as an offer or as constituting a binding
agreement on the part of SAP AG or any of its subsidiaries to enter into
any relationship, unless otherwise expressly stated.
________________________________
From: sap-wug-bounces at mit.edu [mailto:sap-wug-bounces at mit.edu] On Behalf
Of Markus Klein
Sent: Wednesday, 10 May 2006 4:51 PM
To: SAP Workflow Users' Group
Subject: ABAP OO and Workflow (Events, Get a handle etc)
Hello all,
i am currently implementing Workflows baseing on ABAP OO in a 6.20
System (yes i know there are some restrictions, just dont know much
about these restrictions, as i havent yet found any valuable infos).
I do facing some problems and need some ideas:
1. How do i get a handle of a ABAP OO class (included the IF_WORKFLOW as
well as implementation of the respective Methods (find~by~lpor etc)) in
my workflow container at runtime?. I do start the workflow with the
WAPI-FB to start a workflow. So far i have tried to wrapp the
find~by~lpor method in another static method which is called from my
workflow. I do pass a key to the task which implements the wrapper
method. The task passes the key to the method and the method should
return a handle which will then passed back to the workflow. Everthing
on the data-level is fine, meaning the key is a valid key (did run the
class in testmode and called the wrapper method with that key and i do
get a valied handle back) . Unfortuantelly the container element of the
workflow which should hold the returned handle is always empty.
2. Is it recommend to use EVENTS as part of ABAP OO to control workflows
or should i better go with a BOR implementation for that matter?
thanks :)
regards,
Markus
______________________________________
ABS Team GmbH
SAP-Consulting, Human Capital Management
Muehlenweg 65
37120 Bovenden
Markus Klein
SAP Consultant
eMail: klein at abs-team.de
Tel.: +49 551 820 33 0
Mobil: +49 151 126 23 047
Fax: +49 551 820 33 99
www.abs-team.com <http://www.abs-team.com/>
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