Re: Quick question: File exception on update

Hi James,
 
<snip>
Quick question: Suppose, in an RPGLE program, I want to catch, and ignore, a
"Status 1024" exception (error in "after" trigger) on a particular UPDATE
statement, but I want to throw any other exceptions on that UPDATE back to
the operating system.
 
Is there an easy way to do that?
</snip>

The best way to do handle that in RPG is to use a condition handler.
 
To do this you simply register a procedure with the OS to handle unhandled
exceptions. You do this when you initialise your program. When an exception
occurs that is not handled the ILE runtime condition manager will call that
proc and pass it a condition token (describing the error). In that proc you
can do whatever you want. You can "handle" a particular error and allow your
program to carry on, or you can "percolate" it (let the OS handle it) and
everything will work as before. This is vastly superior to (E) extenders or
error indicators or *PSSR/*INFSR subroutines or the monitor op-code.
Condition handlers do what everybody wishes monitor did - selectively
"handle" only the errors you are interested in and let the runtime worry
about the others. Almost all of our interactive programs are covered in this
way - and our users never get a message on a screen when an error occurs
because our condition handler procedure provides them with a different
(user-friendly) one asking them to call helpdesk. Only helpdesk can provide
a response to the error so users never cancel out when an error occurs. It
works an absolute treat. Have a look at CEEHDLR and CEEHLDU in the iSeries
API finder.
 
Cheers
 
Larry