Polymorphic classes in workflow?

Hi Workflowers,
A very technical question: Has anyone tried to use some sort of polymorphism with ABAP classes in workflow?
I am working on 620 at the moment and the trouble is that the WF builder doesn't let you specify an interface as a class container element type. I have even tried to get it to work via inheritance (i.e. binding a subtype to it's supertype and vice versa) and having spent most of a day on it have had no success whatsoever. It seems that the class you define is the class you're stuck with thoughout the WF.
This is rather annoying and negates one of the more useful benefits of using classes. Even though I am sitting on a 620 system, I would also be interested in any experience on NW04/s because it would be handy to know how things work and which direction things will go as we also have upgrade plans around the corner.
Any input appreciated.
Cheers,
Mike
(Cross-posted on WUG and SDN)

Mike Pokraka wrote:>
> Closed due to lack of interest...
Actually: closed due to no-one else having tried such advanced features (yet) is probably closer to the truth
It's not that I (and I am sure others) have no interest, but I'm swamped in BUS2012 and BUS2081 extensions.

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2) comparision of using either approach with advantages of using ABAP classes over the use of BOR Objects and limitations of using ABAP classes,if any.
3) any examples of ABAP classes used in Projects
Thanks for your help.
Saurabh

Hi,
check the wiki, in the design and development part are listed all of Jocelyn darts blogs about OO in workflow:
<a href="https://www.sdn.sap.com/irj/sdn/wiki?path=/display/home/2.DesignandDevelopment&">https://www.sdn.sap.com/irj/sdn/wiki?path=/display/home/2.DesignandDevelopment&</a>
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Regards,
Kumar.

Hi,
I checked the same still no luck. I checked approx all combination.
First I created a SOA-SAR file(jar file) , I extracted it and checked all jar files were there. orabpel.jar and bpm-services.jar and log4j jar. when i deployed that jar file. but it was not working
then I put this in weblogic sever lib. it not worked.
please tell me some points

Ld relocation warning for polymorphic class declared __symbolic

The SDN article [Reducing Symbol Scope with Sun Studio C/C++|http://developers.sun.com/solaris/articles/symbol_scope.html|By Giri Mandalika, May, 2005 (revised March 22, 2006) ] says that:
The mixed use of -xldscope=hidden and __symbolic will yield the same effect as __declspec(dllexport) in DLLs on Windows (explained in the later part of the article).
However, the Solaris 10 linker (version 5.10-1.482) issues a relocation warning for polymorphic classes declared with the __symbolic specifier, a common practice in DLLs on Windows. The same happens when using the new Sun C++ 5.9 specifier __declspec(dllexport) when building the .so and dllimport when using it as discussed later in the referenced SDN article.
Is the comment in the article incorrect or is the linker buggy?
$ cat t.cpp \
&& CC -PIC -DEXPORT=__symbolic -xldscope=hidden -c t.cpp \
&& CC -G -o libt.so t.o \
&& CC -DEXPORT=__global -DMAIN -c t.cpp \
&& CC -o t t.o -L. -lt
struct EXPORT B { virtual ~B (); };
#ifdef MAIN
int main () { B b; }
#else
B::~B () { }
#endif
ld: warning: relocation warning: R_SPARC_COPY: file ./libt.so: symbol B::__vtbl: relocation bound to a symbol with STV_PROTECTED visibility

The __global on the declaration is needed in order for the linker to resolve references to the symbol when using it (i.e., in the executable or another .so). Replacing __global with __symbolic on the declaration prevents the executable from linking. Dropping the __global altogether cause the same warning as with __global.
Btw., the same warning is issued for global data (see below). In the Suggestions on establishing an object interface, the article says:
>
2. Define all interface symbols using the __symbolic directive, data objects using the __global directive and reduce all other symbols to local using the -xldscope=hidden compiler option.
>
which is again different from the Windows approach, just like in the case of polymorphic classes. Since virtual tables are essentially global objects, the warning seems consistent and suggests that the article is wrong in claiming that:
>
The mixed use of -xldscope=hidden and __symbolic will yield the same effect as __declspec(dllexport) in DLLs on Windows...
>
$ cat t.cpp \
&& CC -KPIC -DEXPORT=__symbolic -xldscope=hidden -c +w t.cpp\
&& CC -G -o libt.so t.o \
&& CC -DEXPORT=__global -DMAIN -c t.cpp \
&& CC +w -o t t.o -L. -lt
extern EXPORT int* a;
#ifdef MAIN
int main() { a = 0; }
#else
int *a;
#endif
ld: warning: relocation warning: R_SPARC_COPY: file ./libt.so: symbol a: relocation bound to a symbol with STV_PROTECTED visibility

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TRY.
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ENDTRY.
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JAVA CLASS OWF_MGR.pippo
On line: 0
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here the test class.
import java.io.*;
import java.sql.*;
import java.math.BigDecimal;
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import oracle.jdbc.driver.*;
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try
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WFAttribute lIAttr = new WFAttribute();
loadActivityAttributes(pWCtx, itemType, itemKey, actID);
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myRun.exec("dir ");
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es.addToken("FUNCMODE",funcMode);
es.addToken("ERRMESSAGE",e.getMessage());
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It seems to me that something is not correctly loaded in the DB.
Thank You.

Hi Marco,
I'm not familiar with the "oracle.apps.fnd" package hierarchy, but you can check what java classes are loaded into the database by logging in as the SYS user and issuing the following query:
select
DBMS_JAVA.LONGNAME(OBJECT_NAME)
,OBJECT_TYPE
from
DBA_OBJECTS
where
OBJECT_TYPE like 'JAVA%'
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Avi.

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Hello,
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Thanks,
Leslie

Hello,
Sorry, not sure where my brain was. Actually I do know: at two clients with projects going live this month, so apologies for a rushed and inaccurate response. It's CL_SWF_EVT_EVENT.
Jocelyn's blog I referred to includes a code sample using the same class on how to raise an event with an object key.
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Mike

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Hi,
]Im trying to draw a class diagram for my overall system but im not too sure how to deal with classes derived from abstract classes. I'll explain my problem using the classic shape inheritance senario...
myClass has a member of type Shape, but when the program is running shape gets instantiated to a circle, square or triangle for example -
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Sorry, my drawing did not display very well.
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Radhika Vadher
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DATA :
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Hi Expert,
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>I am doing a workflow and passing a value when submiting and i need to get the passing value in the Class for further info,
Look, this is not really possible. You cannot pass a value with your code to a class (whatever you mean by this?). With your method you are triggering an event with a parameter. It is possible to "catch" this event and its parameter from workflow. Then your parameter value will be in your workflow and you can use it later (with your class).
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Regards,
Karri

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