Re: CHGJRN no message

[CRPence <CRPbottle@xxxxxxxxx>]

Jeff Crosby wrote:
> Doh!
>
> I was doing a CHGJRN first, *then* trying to determine what receiver 
> was just detached.  I just need to do the RTVJRNA first.

  FWiW: Using RTVJRNA to get the current attached receiver, to know in 
advance what the upcoming CHGJRN *GEN will have detached, is only valid 
if the journal has been allocated since before the retrieve; i.e. 
nothing else prevents another requester of CHGJRN, from changing the 
journaling environment between the retrieve & change within the program. 
  ALCOBJ does not support the Object Type *JRN.  A user program can of 
course, /assume/ whatever; e.g. that no other user or program will\can 
do that, irrespective of its validity.

  Although I recommend using RCVMSG to let the CHGJRN notify what it 
did, that still _does not resolve_ the general issue of another program 
or user having done a CHGJRN outside of that one program.  In either 
case, it may be safest to parse the receiver chain to know what 
receivers have been detached; e.g. to ensure that the prior detached 
receivers were also saved, and if not, to add them to the list to be 
saved.  Such a program could instead be reactive, whereby if it deletes 
the journal receiver after its processing, because the existence of a 
previously detached receiver would be notified by the failure of the 
[out of sequence] delete.

Regards, Chuck