BOR event vs ABAP OO event

Hi,
I would like create new PO workflow (BUS2012) using ABAP OO workflow. Is it possible to use the existing BOR event, such as RELEASESTEPCREATED instead of creating new one for the ABAP OO workflow class? And if we can re-use the event, how do we bind the BOR to the class object?
Thanks

Hello Jani,
I just spotted this almost by accident. It is custom on this forum to ask new questions in a new thread. Why? Because your question is unrelated to the title of this thread, so it already has less chance to come to the attention of someone who knows the answer. Of course you can always place a link to an older thread into a new question as well.
Anyhow, to your question, you should use a RETURNING parameter, which enables you to perform the instantiation in a container operation step - far better performance-wise. This is described in detail in the WF book (all authors' proceeds donated to charity). But you're of course always still welcome to ask further questions on here if you get stuck.
Regards,
Mike

Similar Messages

Link BOR Event with ABAP code (program or function)!

Hello experts,
I am trying to link program or function to bor event. Change of data in HR IT0002 trigger event CHANGE of PERSDATA Object. I need to execute some ABAP code (program or function) on CHANGE event, so I have to link event and ABAP code.
Question: is it possible and how?

Hi,
It is very much possible....
You can use the Workflow & use BO as PERSDATA & this workflow can be triggered on event change.
& You can write your code ...
Regards,
Rahul

How to Handle Business Object event in ABAP class

Hello Everybody,
I wanted to know if it was possible to reference BOR objects in ABAP class and handle BOR events in ABAP Objects.
Thanks in advance.

Hi,
Catch the et_VALIDATE event, when InnerEvent = False and ItemChanged = True.
            If pVal.EventType = BoEventTypes.et_VALIDATE Then
                If pVal.InnerEvent = False And pVal.ItemChanged Then
                    'TODO Your code here...
                End If
            End If
Regards,
Vítor Vieira

CLBUS1007.created event triggered by an ABAP OO event?

Hello gurus,
I have noticed, that when the customer master is created in ECC 5.0, the CLBUS1007.created event is triggered (SWEL). However; CLBUS1007 object does not exist in the BOR directory. It must be ABAP OO event than, right? If so, how can I find out the corresponding class? I wonder how I can make a binding, check object attributes etc.
By the way, BUS1007 is obsolete in BOR. Do you know if I should use some other BOR object for a Customer or create a sub-class of this ABAP class that I don't know yet?
Regards,
Michal
PS. I know there is very good blog by Jocelyn Dart about this topic (/people/jocelyn.dart/blog/2006/07/27/raising-abap-oo-events-for-workflow), but it does not solve my problem of relation between SWEL object type and ABAP class.

Hi Michael,
If you look at the header of BOR object BUS1007 you'll notice the last time this was changed was back in 1999 - i.e. 4.6a. So that object has been dead for quite some time.
It's almost certainly just an obsolete piece of code that hasn't been cleaned up properly. I suspect what is happening is that it is mix and matching the object category CL with the business object BUS1007 (which of course is category BO).
Either that or its an obsolete configuration entry that's getting picked up.
If it's annoying you, you could try putting a session breakpoint on function module SWE_EVENT_CREATE to see if you can track the call that causing the problem, and then of course report it in (Low priority) to get it cleaned up.
If you are just looking for the correct object to use, suggest you report it in anyway as a query... I notice they haven't bothered to specify the new object type in the documentation but if you look at SAP note 719936 it mentions that the new object type is KNA1 - which definitely is in the BOR directory.
I haven't seen an ABAP OO version of KNA1 yet in any of the systems... HR seems to be doing a fair bit in ABAP OO though.
Hope that helps.
Regards,
Jocelyn

Abap-Class-Event in Wait Step

Hi guys,
in my workflow i have an activity with an abap method. This method works like a dialog. This means, i get a workitem in the business-workplace which shows a webdynpro where a pdf is displayed and where i can choose whether i click on button1 or button2.
When i click on one button, an abap-class event will be created. This event has a container. My target is, to bring the user desicion back to the workflow via event.
When i start a new workflow with this event then it works fine. But i dont want 2 workflows. I need a solution with one workflow. So i use a fork in my workflow. In branch 1 i have the activity which displays the pdf and create the event. In the other branch i have a waiting step, which waits for the event and bring the user-desision from the event-container to my workflow-container.
That was my plan, but it dont works this way. I checked the event-trace and theres no receaiver entered for my event. So my workflow stoped at the wait-step (wait step is ready).
I read, the the workflow system is automatikly doing the type-linkage and the instance-linkage, but i found only the instance-linkage filled. Can it be, that the wait step is only working with BOR-Events?
Any ideas?

Hi swangir,
i tryed this FW SAP_WAPI_WRITE_CONTAINER some days ago. I can use SAP_WAPI_READ_CONTAINER easylie but when i try to modify the container then i get an enqeue exception in the SAP_WAPI_WRITE_CONTAINER FM. I guess this came up, because i call the webdynpro from an activie-step in the workflow and not a dialog-step. So i guess the container is locked and i cant write. I also tried to unlock it with dequee_e_ .. FM i forgot the name. But it also didnt work.
Thats why i tryed to bring the user desision via event back to the workflow. And it works, as long i use 2 workflows, like i explained in my first post.
What do u mean with...
"Alternatively, you can bind back the class event container to workflow container by binding back from the dialogue step."
Andre

INTERFACE AND EVENTS IN ABAP OO

Can some one explain me the real time need with example for use of interfaces and events in abap objects
(asking interface and events along doesnt mean that i am relating them).
<removed_by_moderator>
Pankaj Giri
Edited by: Julius Bussche on Jul 14, 2008 1:36 PM

Events :
Technically speaking :
" Events are notifications an object receives from, or transmits to, other objects or applications. Events allow objects to perform actions whenever a specific occurrence takes place. Microsoft Windows is an event-driven operating system, events can come from other objects, applications, or user input such as mouse clicks or key presses. "
Lets say you have an ALV - An editable one ...
Lats say - Once you press some button you want some kind of validation to be done.
How to do this ?
Raise an Event - Which is handled by a method and write the validation code.
Now you might argue, that I can do it in this way : Capture the function code - and call the validate method.
Yes, in this case it can be done.. But lets say .. you change a field in the ALV and you want the validation to be done as soon as he is done with typing.
Where is the function code here ? No function code... But there is an event here - The data changed event.
So you can raise a data changed event that can be handled and will do the validation.
It is not user friendly that you ask the user to press a button (to get the function code) for validation each time he enters a data.
The events can be raised by a system, or by a program also. So in this case the data changed event is raised by a system that you can handle.
Also, Lets say on a particular action you want some code to trigger. (You can take the same example of validation code). In this case the code to trigger is in a separate class. The object of which is not available here at this moment. (This case happens very frequently).
Advantage with events : Event handlers can be in a separate class also.
e.g : In the middle of some business logic .. you encounter a error. You want to send this information to the UI (to user - in form of a pop up) and then continue with some processing.
In many cases - A direct method call to trigger the pop up is not done. Because (in ideal cases) the engine must not interact with UI directly - Because the UI could be some other application - like a windows UI but the error comes from some SAP program.
So - A event is raised from the engine that is handled in the UI and a pop up is triggered.
Here -- I would have different classes (lets say for different Operating Systems). And all these classes must register to the event ERROR raised in application.
And these different classes for different Operation systems will have different code to raise a pop-up.
Now you can imagine : If you coded a pop-up for Windows (in your application logic) .. it will not work for Mac or Linux. But of you raise a event.. that is handled separately by a different UI classes for Win, Linux or Mac they will catch this event and process accordingly.
May be I complicated this explanation .... but I couldn't think of a simpler and concrete example.
Cheers.
Varun.

Calling Portal event from ABAP class

Hi Experts,
I need a following clarificatrion, Please help,
1. Is it possible to call a webdynpro method from a normal ABAP class?
2. If no, we need a functionality of a class 'CL_WDR_HTTP_EXT_MIME_HANDLER' having method 'DO_DOMAIN_RELAX_HTML'.
Is there any alternative method which can be used in ABAP having the same functionality.
3. Is there any ways with which we can call portal event from ABAP class?
Thanks,
Shabir

>1. Is it possible to call a webdynpro method from a normal ABAP class?
I wouldn't necessarily recommend this approach. You shouldn't try to trigger events or any of the standard WDDO* methods from outside the WD Component itself. That said, you can pass the object reference (like the WD_COMP_CONTROLLER object reference or the View Object Reference) into methods of normal classes. Be careful if you are finding yourself calling a lot of your added methods from outside WD. This is probably a sign that these methods should be in the Assistance Class or some other Class functioning as a Model Object.
>2. If no, we need a functionality of a class 'CL_WDR_HTTP_EXT_MIME_HANDLER' having method 'DO_DOMAIN_RELAX_HTML'.
Is there any alternative method which can be used in ABAP having the same functionality.
What exactly do you want to do here? Do you just want to get the relaxation script? For what purpose? You should never need to inject the relaxation script into WDA.
>3. Is there any ways with which we can call portal event from ABAP class?
To what purpose. Do you just want to delegate the triggering of the event that is inside WD Component to be called from a class? If so you can pass the portal API object reference into a class from the WD Component. However this only works while running within WD.
How is this class used? Are you running in WD? Are you trying to generate some HTML code that runs in the portal independent of WD?

Why and how to use events in abap objects

Dear all,
Please explain me why and how to use events in abap objects with real time example
regards
pankaj giri

Hi Pankaj,
I will try to explain why to use events... How to use is a different topic.. which others have already answered...
This is same from your prev. post...
Events :
Technically speaking :
" Events are notifications an object receives from, or transmits to, other objects or applications. Events allow objects to perform actions whenever a specific occurrence takes place. Microsoft Windows is an event-driven operating system, events can come from other objects, applications, or user input such as mouse clicks or key presses. "
Lets say you have an ALV - An editable one ...
Lats say - Once you press some button you want some kind of validation to be done.
How to do this ?
Raise an Event - Which is handled by a method and write the validation code.
Now you might argue, that I can do it in this way : Capture the function code - and call the validate method.
Yes, in this case it can be done.. But lets say .. you change a field in the ALV and you want the validation to be done as soon as he is done with typing.
Where is the function code here ? No function code... But there is an event here - The data changed event.
So you can raise a data changed event that can be handled and will do the validation.
It is not user friendly that you ask the user to press a button (to get the function code) for validation each time he enters a data.
The events can be raised by a system, or by a program also. So in this case the data changed event is raised by a system that you can handle.
Also, Lets say on a particular action you want some code to trigger. (You can take the same example of validation code). In this case the code to trigger is in a separate class. The object of which is not available here at this moment. (This case happens very frequently).
Advantage with events : Event handlers can be in a separate class also.
e.g : In the middle of some business logic .. you encounter a error. You want to send this information to the UI (to user - in form of a pop up) and then continue with some processing.
In many cases - A direct method call to trigger the pop up is not done. Because (in ideal cases) the engine must not interact with UI directly - Because the UI could be some other application - like a windows UI but the error comes from some SAP program.
So - A event is raised from the engine that is handled in the UI and a pop up is triggered.
Here -- I would have different classes (lets say for different Operating Systems). And all these classes must register to the event ERROR raised in application.
And these different classes for different Operation systems will have different code to raise a pop-up.
Now you can imagine : If you coded a pop-up for Windows (in your application logic) .. it will not work for Mac or Linux. But of you raise a event.. that is handled separately by a different UI classes for Win, Linux or Mac they will catch this event and process accordingly.
May be I complicated this explanation .... but I couldn't think of a simpler and concrete example.
Cheers.
Varun.

Order of events in abap

Hi,
this is kiran,can any one send the order for events in abap.
regards,
kiran

Hi Kiran,
Below is the list of events:
Initialization : triggered when the report is loaded in memory.
At selection-screen output : triggered when the selection screen is loaded in memory before being displayed.
At selection-screen / <field> : before leaving the selection screen.
start-of-selection : the first event for displaying the report.
end-of-selection : after the start-of-selection is completed.
classiscal report events.
top-of-page : every time a new page is started in the list.
end-of-page : every time the list data reaches the footer region of the page.
interactive report events.
top of page during line selection : top of page event for secondary list.
at line-selection : evey time user dbl-clicks(F2) on the list data.
at pF<key> : function key from F5 to F12 to perform interactive action on the list.
Hope this serves your need.
Regards:
Sapna

Events in ABAP Programming

Hi,
Can anybody please list out the exact differences between the events 'LOAD-OF-PROGRAM', 'INITIALIZATION' and 'AT SELECTION-SCREEN OUTPUT'.
Thanks in advance,
Sujit.

Hi,
<u><b>LOAD-OF-PROGRAM:</b></u> When an ABAP program is loaded in an internal session, the runtime environment triggers the LOAD-OF-PROGRAM event, and the corresponding event block is executed.
The processing block LOAD-OF-PROGRAM has approximately the same function in an ABAP program with type 1, M, F, or S as the constructor method of a class in ABAP Objects.
Programs wiht type 1, M, F, or S can be loaded into an internal session in two ways:
Program calls
Whenever you call a program using SUBMIT or a transaction code, a new internal session is opened. The LOAD-OF-PROGRAM event is therefore called in each program call.
External procedure calls
The first time you call an external procedure (subroutine or function module), the main program of the procedure that you called is loaded into the internal session of the calling program. The eventLOAD-OF-PROGRAM is triggered and the corresponding processing block is executed before the procedure that you called. However, subsequent calls from the same calling program to a procedure in the same subroutine pool or function group do not trigger the LOAD-OF-PROGRAM event.
so it's before the program is loaded in the memory for execution.
<u><b>INITIALIZATION:</b></u>
This event occurs before the standard selection screen is called. You can use it, for example, to initialize the input fields of the standard selection screen. This is the only possible way to change the default values of parameters or selection criteria defined in logical databases. To change a selection criterion, you must fill at least the components <seltab>-SIGN, <seltab>-OPTION, and <seltab>-LOW of the selection table <seltab>, otherwise it remains undefined.
If you want to initialize input fields of the logical database, you need to find out the names of the fields. To do this for the logical database SAPDB<ldb>, use Transaction SLDB or choose Tools
ABAP Workbench, followed by Development Programming environ. Logical databases. You
can also display the technical information for the required field on the selection screen. To do
this, call the F1 help for the required field and then choose Technical info. In the field Scrn Field
of the following dialog box, you then see the name of the field used in the program.
<u><b>AT SELECTION-SCREEN OUTPUT</b></u>
event is triggered. This event block allows you to modify the selection screen directly before it is displayed.

Events in ABAP runtime.

Can Any one explain me the events in ABAP runtime with proper example please.

Hi Srnivas,
Here are the events in order
Classical Report Events:
Initialization
At selection-screen
at selection-screen output
start-of-selection
end-of-selection
top-of-page
end-of-page
Interactive Report Events:
Above events and also,
at line-selection,
at user-command,
at pfn
The following events occur at runtime of a typical report program which uses logical databases:
Event keyword Event
INITIALIZATION Point before the selection screen
is displayed
When you start a program in which a selection screen is defined (either in the program itself or in the linked logical database program), the system normally processes this selection screen first. If you want to execute a processing block before the selection screen is processed, you can assign it to the event keyword INITIALIZATION.
AT SELECTION-SCREEN Point after processing user
input on the selection screen while the selection screen is still active
The event keyword AT SELECTION-SCREEN provides you with several possibilities to carry out processing blocks while the system is processing the selection screen.
START-OF-SELECTION Point after processing the selection screen
The event START-OF-SELECTION gives you the possibility of creating a processing block after processing the selection screen and before accessing database tables using a logical database. You can use this processing block, for example, to set the values of internal fields or to write informational statements onto the output screen.
At the START-OF-SELECTION event, also all statements are processed that are not attached to an event keyword except those that are written behind a FORM-ENDFORM block
GET <table> Point at which the logical database
offers a line of the database table <table>.
The most important event for report programs with an attached logical database is the moment at which the logical database program has read a line from a database table (see Accessing Data Using Logical Databases ). To start a processing block at this event, use the GET statement as follows:
Syntax
GET <table> FIELDS <list>.
After this statement, you can work with the current line of the database table <table>. The data is provided in the table work area <table>.
GET <table> LATE Point after processing all tables which
are hierarchically subordinate to the database table <table> in the structure of the logical database.
To start a processing block at the moment after the system has processed all database tables of a logical database that are hierarchically inferior to a specific database table, use the event keyword GET as follows:
Syntax
GET <table> LATE FIELDS <list>.
In analogy to report programs that use only SELECT statements (see table in Comparison of Access Methods ), the processing block of a GET <table> LATE statement would appear directly before the ENDSELECT statement in the SELECT loop for the database table <table>.
END-OF-SELECTION Point after processing all lines offered
by the logical database.
To define a processing block after the system has read and processed all database tables of a logical database, use the keyword END-OF-SELECTION.
The following events occur during the processing of the output list of a report program:
Event keyword Event
TOP-OF-PAGE Point during list processing when
a new page is started
END-OF-PAGE Point during list processing when a page
is ended
The following events occur during the display of the output list of a report program:
Event keyword Event
AT LINE-SELECTION Point at which the user selects a line
AT USER-COMMAND Point at which the user presses a function key or enters a command in the command field.
AT PF<nn> Point at which the user presses the
function key with the function code PF<n>
With the selection screen, ABAP/4 offers an interactive element also for report programs. You can define a selection screen without having to bother about all the details required in dialog programming.
The selection screen is always processed directly after a report program is started. The user can enter field values and selection criteria on this screen.
Reward points if useful.
Cheers,
Swamy Kunche

What is the equivalent for 'On Change of' Event in ABAP OBJECTS?

What is the equivalent for 'On Change of' Event in ABAP OBJECTS? and how to use it in LOOP control?

hi,
There is no such Equivalent in OO ABAP.
You have to Raise your own Event within tha class checking the value of the field whose value is changing.
Regards
Sumit Agarwal

ABAP OO Event Problem

Hi,
I read the blog posted by Jocelyn Dart-<b><i>Raising ABAP OO Events for Workflow</i></b>...
<b>/people/jocelyn.dart/blog/2006/07/27/raising-abap-oo-events-for-workflow
When I tried the same using my own Class, I am getting some problem.
Well, I created my Class with two Attributes
1) <i>M_POR</i>(Persistent Object Reference Attribute)
2) <i>PERNR</i>(Employee Number)
And I created a Constructor with one parameter.
And I also coded the remaining standard methods as per that blog - <b><i>USING ABAP OO Methods in Workflow Tasks</i></b>.
Finally I activated my CLASS and each individual method.
I created one small report that raises ABAP OO Event as mentioned in the blog with the below mentioned code.
<i>report yworkflowtrigger_ooabap.
data : ls_ywftest1_key type p_pernr,
       lv_objtype type sibftypeid,
       lv_event   type sibfevent,
       lv_objkey type sibfinstid,
       lr_event_parameters type ref to if_swf_ifs_parameter_container,
       lv_param_name       type swfdname,
       lv_visit_date       type datum.
lv_objtype = 'YWFTEST1'.
lv_event = 'STARTEVENT'.
Set up the LPOR Instance id
ls_ywftest1_key = '00000024'.
move ls_ywftest1_key to lv_objkey.
try.
    call method cl_swf_evt_event=>raise
      exporting
        im_objcateg        = cl_swf_evt_event=>mc_objcateg_cl
        im_objtype         = lv_objtype
        im_event           = lv_event
        im_objkey          = lv_objkey
       IM_EVENT_CONTAINER =
     catch cx_swf_evt_invalid_objtype .
     catch cx_swf_evt_invalid_event .
endtry.</i>
I switched on my event trace and tried raising the Event. But event is not raised even after execution of this code. I checked the SY-SUBRC value at the ENDTRY, But this seems perfect(SY-SUBRC = 0).
Why is my event not getting triggered even after the execution of above code?
Is there anything which I have missed.
We are on <b>ECC 5.0</b>
Regards,
<i><b>Raja Sekhar</b></i>

I missed this tip in that blog.
"<i><b>Tip! Just as for Business Object events, the COMMIT WORK statement is crucial when raising a Workflow event - without this the event will not be raised.</b></i>"
Regards,
<i><b>Raja Sekhar</b></i>

ABAP OO Events

Dear all:
In ABAP OO programming, Events can be raised to announce a change of state (or action etc) and the associated Event Handlers can react to that.
SAP says that after the Event is raised:
- caller program halts processing
- all subscribed Event Handlers get executed
- once the Event Handlers finish execution, the control is sent back to the calling program
- the program resumes processing
If that is the case then what is the advantage of using Events+EventHandlers verses calling those Event Handler methods explicitely through the program? One advantage is that if there are multiple actions that should be taken based on event, you could specify all handlers at one place and all gets initiated when the event is raised. Do you envision any other advantage?
My main question is that if the event raiser program after triggering the event has to wait for the event handlers to finish processing - what benefit do we get by using Events+Event Handler combination verses calling the Event Hanlder methods explicitely? Is it only the convenience in coding or any other advantage too?
Thanks!

Hi Chetan,
Calling event handlers directly might be a bad thing. Event handlers should not be treated as merely subroutines. In some cases however, there is no difference in using a subroutine (form, function module, bapi or method) and the event handler.
But consider this.
When a button is available on a screen and when pressed an event is triggered, this will then run the event handler. The question you should ask yourself is: Can you predict when a user presses the button?
Answer: No, you cannot. So tell me, where in your code do you place the call to the event handler?
Once an event handler has been defined and it listens to a specific triggered event, this object can be used anywhere in ABAP OO by simply inherit the object. The only thing you need to do is to trigger the event (and ABAP OO takes care of the rest). Perfect reuseabillity.
So now to your question.
Designing OO programs is based on several techniques, where events have a crucial role. They signal to the system that something has happened. The (event) handler behind it acts on the signal. You can modify your event. You can modify the inhereted handler. Because if this capabillity you should use events with event handlers and not directly calling the handler. Furthermore it is not required to redefine an eventhandler once you declare an inherted object, but you are capable of doing so, thus changing its behaviour.
So this gives you as a devloper very good control over your program. And what more do we want.
Regards,
Rob.

Terminating event and abap oo class

Hi, gurus,
I 'd like to know how the terminating event works.
for example, i define a custom abap oo class (which has been implemented the interface of IF_WORKFLOW), and i want to use it as the terminating event of a standard task.
could you please tell me how does it works?
1. there must be an instance defined in the container of the task?
which must be instanciated in the run time?
2. then in another abap report, i simply raise the event defined as the terminating event, using the same key, then the pending task will be terminated?
could you pls provide more information on this ?
thanks and best regards.
Jun

Hi Jun Zhang,
An event that is used to stop a workflow or task, or change the behavior of an already started workflow is called Terminating Event.
If the event linkage is active and the linkage rules are satisfied, the status of the work item is set to COMPLETED.
Defining Event Linkage Terminating event linkage consists of 2 parts.
Type linkage which specifies business object type, event name, generic name for event receiver (WORKITEM for terminating events of tasks or EVENTITEM for wait for event steps)
Instance linkage which identifies the particular receivers (I.e. work item Ids) per object instance.
Terminating event linkages can be seen in SWE3.
For terminating events, along with Business object and Event a Container Element should be specified that holds the Object Instance.
Terminating Event for Workflow is available from Release 6.10 only. This is defined in Basic Data of Workflow Builder.
Binding Definition is optional for Terminating Events. Binding can be defined b/n event container and workflow container to pass event information to the workflow if required. That is the only way of passing information from an asynchronous method to the task that started it.
Thanks and Regards,
Prabhakar Dharmala

BOR event vs ABAP OO event

Similar Messages

Maybe you are looking for