Use of Events in a program

What is the usage of events like initialization ,start-of-slectio,end-of-selection in a program,
what if we write a program with out those events
can we use initialization twice in a program
like
initialization
start-of-selection
initialization
end-of-selection
Thanks in advance

CLASSICAL REPORT EVENTS :
INITIALIZATION : TO INITIALISE THE SELECTION SCREEN ELEMENTS
START- OF-SELECTION: NORMALLY WE WRITE THE REPORT LOGIC HERE
AT SELECTION-SCREEN : SELECTION SCREEN VALIDATIONS
WHETHER U ENTERED IS CORRECT OR NOT AT SELECTION SCREEN LEVEL
AT SELECTION-SCREEN ON FIELD : TO PROVIDE INPUT HELP[S FOR THE FILDS AT SELECTION SCREEN
FOR EX : MATNR IF U PREESS F4 AT SELECTION SCREEN.
TOP-OF-PAGE : TO PROVIDE LIST HEADING ( OUTPUT HEADINGS)
END-OF-PAGE : TO PROVIDE FOOTER I.E., PAGE NUMBERS
END-OF-SELECTION : TO FREE THE MEMORY , NO NEED OF USING THIS SPECIALLY
INTERACTIVE EVENTS :
AT LINE-SELECTION : IT IS USED TO HENDLE SECONDARY LISTS
AT USER-COMMAND : TO PROVIDE OUR OWN GUI ( PUSH BUTTONS ETC) AT OUTPUT
AT PF-STATUS : TO PROVIDE FUNCTIONS FOR OUR OWN PROVIDED GUI BUTTONS AT OUTPUT
LOAD-OF-PROGRAM.
Triggers the associated event in an internal session after loading a program of type 1, M, F, or S. Also runs the associated processing block once and once only for each program and internal session.
INITIALIZATION.
the associated event is executed before the selection screen is displayed.
START-OF-SELECTION.
In an executable program, the corresponding event is processed after the selection screen has been displayed and before data is read using a logical database
GET
Triggers the associated events when data is read in an executable (type 1) program using a logical database.
END-OF-SELECTION.
The END-OF-SELECTION event is triggered in type 1 programs once the logical database has finished reading all data and before the list processor is started.
END of page and top page
while displaying the list as the name suggest fired at the top and end of page
The event are triggered depended on the way the output is generated .
for eg:
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.
There are 4 events in Dialog programming.(main events)
PBO - Process Before Output
PAI -Process After Input
POV-Process on Value Request
POH-Process on Help Request
As the name suggest PBO is process before OUTPUT, ie the the processing before screen is displayed
and PAI processing after screen is diplayed
now actually i dont know what your code does
but still i can figure out that
During the PBO loop, a loop is executed at it_vbak, where the row index corresponds to the current row of the table control.
During the PAI loop, the rows of the internal table, whose row index corresponds to the current row of the table control, are overwritten with the contents of the work area(not present here)
After the PAI loop, user input is processed in the module USER_COMMAND.
AT SELECTION-SCREEN
This event is processed before leaving the Selection Screen i.e. when the selection screen has been processed (at the end of PAI once the ABAP runtime environment has passed all the input data from selection screen to the ABAP program).
This event is used to validate the input provided through selection screen. If an error message occurs in this processing block, the selection screen is redisplayed with all of its fields ready for input. This allows you to check input values for consistency.
AT SELECTION-SCREEN OUTPUT
This event gets triggered for the first time when the screen is building up and the screen is about to appear. It gets triggered again and again for every dialog step/the selection screen is refreshed/ enter key is pressed.
This event is to control the display of the screen at runtime. lilke hiding the fields, making the fields Active/Inactive, to modify the field attributes. It is a PBO Event.

Similar Messages

Can we use Initilization event in module pool program?

Hi All,
Can we use Initialization event in module pool program? If not why?
Thanks In Advance!!!!!!!!!

The runtime environment creates the INITIALIZATION event and calls the corresponding event block (if it has been defined in the ABAP program).
http://help.sap.com/saphelp_nw70/helpdata/EN/fc/eb2d67358411d1829f0000e829fbfe/content.htm
SEE THE ABOVE LINK...THINK IT WILL SOLVE ALL YOUR DOUBTS
REGARDS
RACHEL

How to schedule a background job using the Event concept..?

Hi Folks,
I have a requirement that, I need a schedule a background job.
Once after the previous job successful only, new job should get triggered. How to go ahead with this..?
For Eg, I am scheduling a job called ZTEST periodically for 1 minute. If the job is not get completing with in 1 minute, I dont want to start my new job. Only after the success of my old job, I want my new job to run.
Waiting for ur replies.
Regards,
Savi.

Hi,
You can use events that have already been defined, or you can create new events for scheduling background jobs.
If you wish to use new events, do the following to implement the event scheduling:
Define and transport the event as a user event with transaction SM62.
You must define only event IDs; event arguments are not defined in the R/3 System. Instead, you specify event arguments when you schedule a job to wait for an event and when you trigger the event.
If you define a new event, you must also transport it to your production systems. The event transaction does not have a connection to the transport system. Instead, you must create a transport request for the event yourself.
Do this to transport an event:
Create a transport request.
Start the editor in the transport request and enter the following:
R3TR TABU <table name> where table name is BTCSEV for a system event ID, BTCUEV for a user event ID.
Press F2 with the cursor on the table name to call up the screen for specifying the table entries to transport. In this screen, enter the event IDs that you have created.
Save and release the transport request. Ensure that it is imported into your production system(s).
To trigger an event, add:
the function module BP_EVENT_RAISE to your ABAP program, or
the program SAPEVT to your external script, batch file, or program.
When your programs execute these keywords, an event will be triggered in the R/3 background processing system. The event-based scheduler is started immediately. It in turn starts all jobs that were waiting upon the event, subject to normal background processing restrictions, such as the requirement that the job has been released to start.
Schedule the jobs that are to run when your events are triggered.
You can schedule jobs for one-time start or to be started whenever an event is triggered.
Regards,
Raj.

ABAP Error:Illegal interruption of the event LOAD-OF-PROGRAM (in MIGO-Goods issue to Production)

Hi Experts,
while i am doing MIGO(Goods Issue to Production Order, I am getting the below ABAP Error:
Please give solution, It is urgent requirement.
THE ERROR IS:
Short text
     Illegal interruption of the event LOAD-OF-PROGRAM.
What happened?
     Error in the ABAP Application Program
     The current ABAP program "/MRSS/SAPLRAP_INT_OB" had to be terminated because it
      has come across a statement that unfortunately cannot be executed.
Error analysis
     During the flow of the event LOAD-OF-PROGRAM (event for the
     initialization of an ABAP program), a condition occurred under which
     the event was to be left early. This is not permitted as it would
     result in an inconsistent status in the ABAP program.
Trigger Location of Runtime Error
    Program /MRSS/SAPLRAP_INT_OB
    Include /MRSS/LRAP_INT_OBF00
    Row                                     34
    Module type                             (FORM)
    Module Name                             GLOBAL_INIT
Source Code Extract
Line SourceCde
    4
    5 *&---------------------------------------------------------------------*
    6 *&      Form global_init
    7 *&---------------------------------------------------------------------*
    8 *       text
    9 *----------------------------------------------------------------------*
   10 FORM global_init.
   11
   12 * local data
   13   DATA lv_badi_impl_exists TYPE flag.
   14
   15
   16 * get ref to BAdIs
   17   CALL METHOD cl_exithandler=>get_instance "#EC CI_BADI_GETINST
   18     CHANGING
   19       instance = gv_ref_badi_inter_company.
   20 * CALL METHOD cl_exithandler=>get_instance
   21 * CHANGING
   22 *      instance = gv_ref_badi_rap_back.
   23 * CALL METHOD cl_exithandler=>get_instance
   24 *    CHANGING
   25 *      instance = gv_ref_badi_ps_int.
   26   CALL METHOD cl_exithandler=>get_instance "#EC CI_BADI_GETINST

Hi Rob thanks for your response. I thought about doing an OSS note however; I would think I would need to get the problem in config corrected first as it contradicts each other. The problem I am talking about is how they are to return material to vendor....I have never even seen this as a process in my 10 years....
Process.....when the PO is a return to vendor PO they go to migo and choose the goods receipt and mvmt type 101 and the system will default the 161 in the item level....the two are inconsistent. If I try to change the top level to a 161 mvmt (as this is what I am used to seeing) it gives the error that the PO is not a stock transport order... Would you agree that I should correct that problem first before creating an OSS note?

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,
LOAD-OF-PROGRAM: 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.
INITIALIZATION:
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.
AT SELECTION-SCREEN OUTPUT
event is triggered. This event block allows you to modify the selection screen directly before it is displayed.

How to raise an event from a program

Hi,
I am creating a workflow for HR, the person will request a basic pay change than, this will start the workflow. For this i am making a screen from where i need to triger the event for the workflow.
Does anybody has any idea? of how to raise an event from a program. or has anybody worked on a scenario like this
Khusro Habib

You can also use the FM SAP_WAPI_CREATE_EVENT which is a little newer I think. (I don't have access to a system today so that may not be the exact name of the FM but if you search SE37 under SAPWAPIEVENT* you should find it.
the parameters will be the event name, and the object key. The object key will be the key field of the workflow object you are using.
For example if you were using the saled document object then the object key would be the sales document number. Carefull how you enter the object key, it can be a little tricky on whether or not you need the leading zeros in the input parameter.
Hope this helps.
Brent

Which is the mandatory event in report program?

which is the mandatory event in report program?
Plz its urgent

Hi,
Its true, there is no mandatory event in a report program as such. You use events to organize your statements and control the flow of your program.
For eg, following are some of the events used with their purpose :
First event -
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 : 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.
at user-command
And If the program contains no explicitly defined event blocks, all the statements in the program form the entire event block START-OF-SELECTION, which need not be defined explicitly but is taken by default.
Hope it helps.

Use of Events in OOPS ABAP

Hi all,
Can anybody please say me what is the exact use of EVENTS in OOPs ABAP. Can anybody please explain me with an example.
Thanks in advance.

hi,
By triggering an event, an object or a class announces a change of state, or that a certain state has been
achieved.
Events link objects or classes more loosely than direct method calls do. Method calls establish precisely
when and in which statement sequence the method is called.
However, with events, the reaction of the
object to the event is determined by the triggering of the event itself.
Events are most often used in GUI implementations.
Other external object models, such as COM, ActiveX Controls etc, also provide events.
At the moment of implementation, a class defines its
instance events (using the statement EVENTS) and
static events (using the statement CLASS-EVENTS)
Classes or their instances that receive a message when an event is triggered at runtime and want to react
to this event define event handler methods.
Statement : (CLASS-)METHODS <handler_method> FOR EVENT <event> OF <classname>.
These classes or their instances register themselves at runtime to one or more events.
Statement : SET HANDLER <handler_method> FOR <reference>. (for instance events)
SET HANDLER <handler_method>. (for static events).
A class or an instance can trigger an event at runtime using the statement RAISE EVENT.
Both instance and static events can be triggered in instance methods.
Only static events can be triggered in static methods.
Events can only have EXPORTING parameters which must be passed by value.
Triggering an event using the statement RAISE EVENT has the following effect:
the program flow is interrupted at that point
the event handler methods registered to this event are called and processed once all event handler methods have been executed, the program flow starts again.
If an event handler method in turn triggers an event, then the program flow is again interrupted and all event handler methods are executed (nesting).
Events are registered using the command SET HANDLER. Registration is only active at program runtime.
Events cannot be persistent.
You want to register an object to an event belonging to another object. The SET HANDLER... statement
enters the registration in that objects list. All handlers for one event are entered in this list.
When the event is triggered, the list shows which event handler methods need to be called.
Event handler methods are triggered by events (RAISE EVENT), although they can also be called like
normal methods (CALL METHOD).
The interface of the event handler method consists solely of IMPORTING parameters. Only parameters
from the definition of the corresponding event (event interface) can be used.
An event interface only has EXPORTING parameters and is defined using the EVENTS statement in the declaration of the event. The
parameters are typed in the event definition and the typing is passed to the event handler method, that is,
the interface parameters of the event handler method cannot be typed in the definition of the event handler
method.
In addition to the explicitly defined event interface parameters, the implicit parameter SENDER can also be
listed as an IMPORTING parameter for instance events. This passes on a reference to the object that
triggered the event.
Events are also subject to the visibility concept and can therefore be either public, protected or private.
Visibility establishes authorization for event handling :
all users only users within that class or its subclasses
only users in that class.
Event handler methods also have visibility characteristics. Event handler methods, however, can only have
the same visibility or more restricted visibility than the events they refer to.
The visibility of event handler methods establishes authorization for SET-HANDLER statements: SET
HANDLER statements can be made anywhere in that class and its subclasses only in that class
<REMOVED BY MODERATOR>
Edited by: Alvaro Tejada Galindo on Feb 14, 2008 2:45 PM

If I do NOT use any event, except AT SELECTION SCREEN, Do I get any issues?

Hi Experts,
Pls. let me know that, If I do NOT use any event, except AT SELECTION SCREEN, Do I/prog. get any issues? (am also using AT SELECTION SCREEN OUTPUT for list box preperation).
For some reason(execution of the report prog. with ENTER button), am using ONLY these 2 events.
For full detials, pls. see my other thread with title,
Is it possible to execute a REPORT prog. with pressing of ENTER button?
thanq

Hi
srinivas see this program
i am executing this program with out any event it is not showing any error but not giving output
when i put start-of-selection then it is showing output
*& Report ZNNR_REPORT33
REPORT ZNNR_REPORT33 NO STANDARD PAGE HEADING MESSAGE-ID ZNNR LINE-SIZE 100 LINE-COUNT 65(4).
******DATA DECLARATIONS**********
DATA : BEGIN OF IT_PLANT OCCURS 0,
 MATNR LIKE MARA-MATNR,
 WERKS LIKE MARC-WERKS,
 PSTAT LIKE MARC-PSTAT,
 EKGRP LIKE MARC-EKGRP,
 END OF IT_PLANT.
DATA : BEGIN OF IT_PONO OCCURS 0,
 EBELN LIKE EKKO-EBELN,
 EBELP LIKE EKPO-EBELP,
 MATNR LIKE EKPO-MATNR,
 WERKS LIKE EKPO-WERKS,
 LGORT LIKE EKPO-LGORT,
 END OF IT_PONO.
TABLES EKKO.
********END OF DATA DECLARATIONS*********
********SELECTION SCREEN DESIGN ***********
SELECTION-SCREEN BEGIN OF BLOCK B1 WITH FRAME TITLE TEXT-001.
PARAMETER : P_WERKS LIKE MARC-WERKS MODIF ID S1.
SELECT-OPTIONS : S_EBELN FOR EKKO-EBELN NO INTERVALS MODIF ID S2.
SELECTION-SCREEN END OF BLOCK B1.
SELECTION-SCREEN BEGIN OF BLOCK B2 WITH FRAME TITLE TEXT-004.
SELECTION-SCREEN BEGIN OF LINE.
PARAMETERS : R1 RADIOBUTTON GROUP G1 DEFAULT 'X' user-command uc1.
SELECTION-SCREEN COMMENT 5(20) TEXT-002 FOR FIELD R1.
SELECTION-SCREEN END OF LINE.
SELECTION-SCREEN BEGIN OF LINE.
PARAMETERS : R2 RADIOBUTTON GROUP G1.
SELECTION-SCREEN COMMENT 5(20) TEXT-003 FOR FIELD R2.
SELECTION-SCREEN END OF LINE.
SELECTION-SCREEN END OF BLOCK B2.
******END OF SELECTION SCREEN DESIGN****************
***********SCREEN MODIFICATIONS*******************
AT SELECTION-SCREEN OUTPUT.
LOOP AT SCREEN.
 IF R1 EQ 'X' AND SCREEN-GROUP1 EQ 'S2'.
 SCREEN-INPUT = 0.
 MODIFY SCREEN.
 ENDIF.
 IF R2 EQ 'X' AND SCREEN-GROUP1 EQ 'S1'.
 SCREEN-INPUT = 0.
 MODIFY SCREEN.
 ENDIF.
ENDLOOP.
********END OF SCREEN MODIFICATIONS*****************
***************SCREEN VALIDATIONS *****************
at selection-screen.
SELECT SINGLE *
 FROM EKKO
 INTO EKKO
 WHERE EBELN IN S_EBELN.
IF SY-SUBRC <> 0.
 SET CURSOR FIELD 'S_EBELN-LOW'.
 MESSAGE E999 WITH TEXT-005.
 clear S_ebeln-low.
ENDIF.
********end of screen validation*****************
IF R1 EQ 'X'.
*ULINE AT /1(48).
 WRITE : SY-VLINE ,2 'MATERIAL NUMBER',
 21 SY-VLINE , 22 'PLANT',
 27 SY-VLINE , 28 'STATUS',
 43 SY-VLINE , 44 'GRUP', 48 SY-VLINE.
 ULINE AT /1(48).
ENDIF.
IF R2 EQ 'X'.
 WRITE : SY-VLINE , 2 'PO NUMBER',
 12 SY-VLINE, 13 'ITEM',
 18 SY-VLINE,19 'MATERIAL NUMBER',
 37 SY-VLINE, 38 'PLANT',
 44 SY-VLINE, 45 'GRUP',
 49 SY-VLINE.
 ULINE AT /1(50).
ENDIF.
start-of-selection.
*set pf-status '100'.
IF R1 EQ 'X'.
 SELECT MATNR
 WERKS
 PSTAT
 EKGRP
 FROM MARC
 INTO TABLE IT_PLANT
 WHERE WERKS = P_WERKS.
 LOOP AT IT_PLANT.
 WRITE : SY-VLINE , 2 IT_PLANT-MATNR COLOR COL_KEY,
 21 SY-VLINE , 22 IT_PLANT-WERKS COLOR COL_KEY,
 27 SY-VLINE ,28 IT_PLANT-PSTAT COLOR COL_NORMAL,
 43 SY-VLINE ,44 IT_PLANT-EKGRP COLOR COL_NORMAL.
 ENDLOOP.
ENDIF.
IF R2 EQ 'X'.
 SELECT EBELN EBELP MATNR WERKS LGORT
 FROM EKPO
 INTO TABLE IT_PONO
 WHERE EBELN IN S_EBELN.
 LOOP AT IT_PONO.
 WRITE : SY-VLINE , 2 IT_PONO-EBELN COLOR COL_KEY,
 12 SY-VLINE , 13 IT_PONO-EBELP COLOR COL_KEY,
 18 SY-VLINE , 19 IT_PONO-MATNR COLOR COL_NORMAL,
 37 SY-VLINE , 38 IT_PONO-WERKS COLOR COL_NORMAL,
 44 SY-VLINE , 45 IT_PONO-LGORT COLOR COL_NORMAL, 49 SY-VLINE..
 ENDLOOP.
ENDIF.
ULINE AT /1(50).
WRITE :/10 'PAGE NUMBER', SY-PAGNO, '/' ,SY-PAGNO.
ULINE AT /1(50).
WRITE :/10 'PAGE NUMBER', SY-PAGNO.

Trigger a job using an event through a process chain

Hi,
After the success of 5metachain, I am using AND condition
My requirement is as follows, it should trigger a job which needs to be after AND condition,
I have created an event using sm64. Basically the client wants to trigger the job using the event through the process chain. I have tried test scenariou2019s using ABAP program (Process type) in the process chain but it is failing. Is there any other way to trigger a job using an event through a process chain? If ABAP program is the only option, can you please specify what all needs to be filled in the variant?
Regards.
Jerry

Hi,
Create a program like below,
CALL FUNCTION 'BP_EVENT_RAISE'
EXPORTING
 EVENTID = 'EVENT WHICH YOU HAVE CREATED'
EXCEPTIONS
 BAD_EVENTID = 1
 EVENTID_DOES_NOT_EXIST = 2
 EVENTID_MISSING = 3
 RAISE_FAILED = 4
 OTHERS = 5
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
 WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
search and include the program name which you have created above in the "ABAP program" process type which you are going to include in the process chain.
Include the event which you have created in the start condition of the job.
Note: No need of give any variant, because here we are calling only one function in this program.
Regards,
Sridevi.

How to use the Events which are in BOR?

HI Experts
In SAP Business Object Repository, under each object, we can see some events. What are these events, can we use them in our programs. For instance the business object type BUS2010-Purchase order; I can see some events for it, If I want to use these events in my custom program, can I use them?
What is the use of it SAP R/3. If you feel my question is baseless also, please provide me the information about this once.
Thanks in advance
Praveen

Hi,
If you want to raise BOR event from your program you can use function module SWE_EVENT_CREATE.
If you want to register for the event and handle it you can go to transaction SWEC and register your function module there.

How to trigger an event in the program

Hi,
I have a program. The purpose of the program is to retrieve the data matching the selection criteria and downlod the same to a file.
In the selection screen, I have a parameter called 'EVENT'. Here, user enters some event name. Generally, they enter the 'Background job processing events'.
So, my requirement is... once the files are successfully downloaded, the program should trigger the 'EVENT' specified in the selection screen at run time.
Can someone help me in this regard. How to trigger an EVENT in the program. Is there any Function Module or Method available in SAP which triggers the EVENT at runtime.
And is there any table available in SAP which stores all the events available in SAP. Because, whenever the user enters an EVENT in the selection screen, we should check whether the event is valid or not. So, if there is any table available which has all the events then, it will be easy I guess. or is there any other way to validate the EVENT name.
Please help me. Thanks in advance,
Best Regards,
Paddu.

Hello Paddu,
have a look at tables
- btcsev, btcsed (system events)
- btcuev, btcued (user events)
and use function BP_EVENT_RAISE.
kind regards
Walter Habich

Focus problem using key event

Hi!
There is an application I've created uses key event that needs your help.
As you know, that setting 'Mnemonic' to a JButton object makes the button accessible by a key mentioned in the parameter as the following ->
               OkButton.setMnemonic(KeyEvent.VK_O);Now, pressing 'Alt' and 'O' keys together will do the same action as the 'OKButton' does.
But as of me, I think pressing two keys together is not a complete handy job.
So, is there any code that will do the same, by pressing only the 'O' key ?
Ok! I know that there is something to be taken care of; that is, if I want the button to react by pressing only the 'O' key the button must be in focus [value returned by the method [code]isFocusable() for the button must return true.]
Then how the 'Mnemonic' works ?!! When 'Mnemonic' do something, button does not have any focus.
Only, I press the Alt+O and the work done successfully! No need to take care wherever the focus is. So, is there any way to do alike, where I don't have to manage the focus subsystem?? I would only press the 'O' key and the task will be done.
Please send a sample code. Thanks!

I suggest you look into Key Bindings:
"How to Use Key Bindings"
http://java.sun.com/docs/books/tutorial/uiswing/misc/keybinding.html
Here is a short demo program that uses Key Bindings to do what you describe:
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import javax.swing.*;
public class PressOTest extends JFrame {
    public PressOTest() {
        super("Press O or C");
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        // Action that will be associated with the OK button and with
        // the 'O' key event
        Action okAction = new AbstractAction("Ok") {
            public void actionPerformed(ActionEvent e) {
                JOptionPane.showMessageDialog(PressOTest.this, "Ok!");
        // Action that will be associated with the Cancel button and with
        // the 'C' key event
        Action cancelAction = new AbstractAction("Cancel") {
            public void actionPerformed(ActionEvent e) {
                JOptionPane.showMessageDialog(PressOTest.this, "Cancel!");
        // Register Key Bindings for the 'O' and 'C' keys:
        InputMap im = getRootPane().getInputMap(
                JComponent.WHEN_IN_FOCUSED_WINDOW);
        ActionMap am = getRootPane().getActionMap();
        im.put(KeyStroke.getKeyStroke( KeyEvent.VK_O, 0 ), "ok");
        am.put( "ok", okAction );
        im.put(KeyStroke.getKeyStroke( KeyEvent.VK_C, 0 ), "cancel");
        am.put( "cancel", cancelAction );
        // Create and add OK & Cancel buttons:
        JButton okButton = new JButton(okAction);
        JButton cancelButton = new JButton(cancelAction);
        Box box = Box.createHorizontalBox();
        box.add( Box.createHorizontalGlue() );
        box.add( okButton );
        box.add( Box.createHorizontalStrut(10) );
        box.add( cancelButton );
        box.add( Box.createHorizontalGlue() );
        getContentPane().add( box );
        setSize(300, 300);
        setLocationRelativeTo(null);
    public static void main(String[] args) {
        new PressOTest().setVisible(true);
}

Inbound using Business Events

Hi All,
We have to develop an inbound interface using business event to get better asynchronous mode of process between the middleware and Ebusiness Suit. The previous design was using a stored procedure by passing input parameter as table type (We had header line and details information in 3 different table type). Now instead of calling stored procedure middleware(ESB) will trigger business event by passing the input parameter. Please let me know how can I achieve this.
My main concern is if ESB is able to populate data via business event how can we process in our side.
I am ok even if we can get the data as xml also,, Please tell me how to achieve.
Please help.
Thanks,

Ayyapan wrote:
Hi,
I have to use business events to send concurrent program status.Could anyone help me out ?
Sytem : R12
linux env.
Thanks.Please see "Business Events Region" in (System Administrator responsibility > Concurrent > Program > Define) window.
Concurrent programs can be integrated with the Business Event System in Oracle Workflow. Business events can be raised at key points of the life cycle of a request to run a concurrent program. Users can subscribe to the business events and create their own business processes interacting with the concurrent programs.
http://docs.oracle.com/cd/E18727_01/doc.121/e12893/T174296T174301.htm
http://docs.oracle.com/cd/E18727_01/doc.121/e12897/T302934T458252.htm
Thanks,
Hussein

SOME SERVICES STOP AUTOMATICALLY IF THEY ARE NOT IN USE BY OTHER SERVICES OR PROGRAMS

I currently install a software that needs to have a services run in order to for the license to be detected.When i run the services manually i got this error message
'THE UBSLAN_LDR SERVICE ON LOCAL COMPUTER STARTED AND THEN STOPPED.SOME SERVICES STOP AUTOMATICALLY IF THEY ARE NOT IN USE BY OTHER SERVICES OR PROGRAMS'
What can cause this and solution please

Hi kuados ,
Thanks for posting here.
After reading your posting I understand that when you establish USBLAN_LDR service on windows server 2008, system prompt an error message.
According the information what you provided right now, it’s hard to determine what cause this issue, you may like to post more information about your environment
(Event log ,Other System prompting etc… ).
Please check if it worked with assign a Local System account instead of Local Service account to run this service.
Open service MMC snap-in.
Right UBSLAN_LDR service , and click “properties”.
Click “Log on” tab , and assign a local account for running this services.
Seems this issue related to a third party software, I suggest to consult software vendor for future troubleshooting.
Please understand that I don't mean to bounce you between different solution provider as I am fully aware how time consuming this can be. However, they really are
in a better position to be able to assist you with this issue as they may have experienced similar issues.
Thanks for your understanding.
Tiger Li
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Use of Events in a program

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