Message Expiration @ EDN

Question

Hi,
I have been leveraging EDN for publish-subscribe pattern implementation. In my business use-case there is one publisher and 3 subscriber. I am looking for little information around EDN.
1.     What is message expiration time at EDN, in case of subscriber un-availability , how long message will persist in the system?
2.     Is there any way to change default behavior of message expiration time ?
3.     There are few dedicated EDN related tables within soa-infra schema. I believe that Event resides in table called “EDD_EVENT_QUEUE_TABLE”, please correct me if I am wrong …I am looking for a table which holds payload of Published Event. Is there any table for this?
Thanks in advance.
Thanks & Regards,
saurabh

Answer 1

Hi,
I'm not sure this will help, but in my environment, expiration works fine.
(1) Craate queue table with object type payload, single consumer.
(2) Craete Normal queue and Exception queue
(3) Start Normal queue
(4) Enqueue like you
(5) Check v$aq
SQL> select * from v$aq where qid=145006; -- for Normal queue
* At first--------- READY=1, EXPIRED=0
* After 5 Seconds-- READY=0, EXPIRED=0
SQL> select * from v$aq where qid=145169; -- for Exception queue
* At first--------- READY=0, EXPIRED=0
* After 5 Seconds-- READY=0, EXPIRED=1
I hope you can find out a problem.