topic Re: Try in Application Development and Automation Discussions

Try

Former Member — Fri, 17 Nov 2006 14:16:10 GMT

Please explain about thr Try statement.

give some example.

Re: Try

Former Member — Fri, 17 Nov 2006 14:18:13 GMT

Basic form

TRY.

Effect

You catch class-based exceptions in the statement block enclosed by the TRY and ENDTRY statements. To catch these exceptions, you define handlers within the specified TRY block. You introduce a handler using a CATCH statement, followed by the exception classes to be caught and the associated handler code. After the CATCH clauses, you can declare a CLEANUP clause. The statements in the latter clause will be executed if an exception is caught outsidethe TRY block. The structure of the TRY block is as follows:

TRY. 
  ... guarded section 

CATCH cx11 ... cx1n [INTO ex1]. 
  ... handlers for exceptions cx11 to cx1n 

CATCH cx21 ... cx2m [INTO ex2]. 
  ... handlers for exceptions cx21 bis cx2m 
... other handlers 
CLEANUP. 
  ... cleanup block 
ENDTRY.

The TRY block is split into different sections using the CATCH and CLEANUP clauses.

Re: Try

Former Member — Fri, 17 Nov 2006 14:18:34 GMT

Please check this thread

https://forums.sdn.sap.com/click.jspa?searchID=93818&messageID=2288302

It explains many more similar commands also...

Re: Try

Former Member — Fri, 17 Nov 2006 14:21:04 GMT

Hi John,

TRY statement is used when you expect some error/exception condition but not sure of which type of error may be present in a code block.

in that case just wrap the code block in <b>TRY</b> ..<b>ENDTRY</b> block

see this sample code.

TRY.

SORT T_ERGEB-MSG_T_SAP_ACTIVITY-ITEM DESCENDING.

DELETE ADJACENT DUPLICATES FROM T_ERGEB-MSG_T_SAP_ACTIVITY-ITEM.

CALL METHOD ZCO_SAP_ACTIVITY_TOMX=>EXECUTE_ASYNCHRONOUS

EXPORTING

OUTPUT = T_ERGEB

CONTROLLER = L_CONTROLLER.

COMMIT WORK.

CATCH CX_AI_SYSTEM_FAULT INTO L_SYS_EXCEPTION.

SY-MSGV1 = L_SYS_EXCEPTION->ERRORTEXT.

SUBRC = 1.

EXIT.

ENDTRY.

Here we are expecting that this code may generate a CX_AI_SYSTEM_FAULT type of exception. to handle this we have written a catch block.

error of type CX_AI_SYSTEM_FAULT will be handled by this catch block