AQ (PL/SQL) and JMS access to same queue?

Hello,
I have a queue of type JMS-MapMessage for which I want to enqueue messages with the
AQ PL/SQL API. How would I define it's
payload since apparently the message content
cannot be displayed by sqlplus? Alternatively, how can I set my own properties for a JMS-type queue in PL/SQL?
I'd be glad if I could get to see an example
of a PL/SQL-ENQUEUE to a JMS-type queue!
Thanks,
Karin

I am using PL/SQL directly to send JMS text messages. Works fine. Here is example:
DECLARE
Enqueue_options DBMS_AQ.enqueue_options_t;
Message_properties DBMS_AQ.message_properties_t;
Message_handle RAW(16);
User_prop_array SYS.AQ$_JMS_USERPROPARRAY;
Agent SYS.AQ$_AGENT;
Header SYS.AQ$_JMS_HEADER;
Message SYS.AQ$_JMS_TEXT_MESSAGE;
Message_text VARCHAR2(100);
BEGIN
Agent := SYS.AQ$_AGENT('',NULL,0);
User_prop_array := SYS.AQ$_JMS_USERPROPARRAY();
Header := SYS.AQ$_JMS_HEADER( Agent, '', 'aq1', '', '', '', User_prop_array);
Message_text := 'Message 1 from PL/SQL';
Message := SYS.AQ$_JMS_TEXT_MESSAGE(Header, LENGTH(Message_text), Message_text, NULL);
DBMS_AQ.ENQUEUE(queue_name => 'aq1.webapp_queue',
Enqueue_options => enqueue_options,
Message_properties => message_properties,
Payload => message,
Msgid => message_handle);
COMMIT;
END;
/

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Runjhun,
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paross1 wrote:
> there probably isn't
> much that can be done with a database that probably
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> simultaneous transactions.
>
> Phil
>
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handle
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that
accesses this resource in named <cflock ...> tags so
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time. Then
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blocks to gracefully handle
when the database is locked up by some other user/process.
You will still have many times when the CF application will
not be able
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handle this
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scalability
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--- create queue type
CREATE TYPE mesaj_t AS OBJECT
message varchar2(100)
--- create queue table , queue and start queue
BEGIN
dbms_aqadm.create_queue_table(queue_table => 'mesaj_qt',
queue_payload_type => 'mesaj_t',
sort_list => 'PRIORITY,ENQ_TIME',
multiple_consumers => FALSE);
dbms_aqadm.create_queue(queue_name => 'mesaj_q',
queue_table => 'mesaj_qt');
dbms_aqadm.start_queue(queue_name => 'mesaj_q');
END;
--enqueue message
DECLARE
r_enqueue_options dbms_aq.enqueue_options_t;
r_message_properties dbms_aq.message_properties_t;
v_message_handle RAW(16);
BEGIN
dbms_aq.enqueue(queue_name => 'mesaj_Q',
enqueue_options => r_enqueue_options,
message_properties => r_message_properties,
payload => mesaj_t(message => 'selam'),
msgid => v_message_handle);
END;
--dequeue message from session 1 and dont comit
DECLARE
r_dequeue_options dbms_aq.dequeue_options_t;
r_message_properties dbms_aq.message_properties_t;
v_message_handle RAW(16);
l_corr_identifier VARCHAR2(128);
l_recipient_list dbms_aq.aq$_recipient_list_t;
v_payload_handle mesaj_t;
BEGIN
dbms_aq.dequeue(queue_name => 'mesaj_Q',
dequeue_options => r_dequeue_options,
message_properties => r_message_properties,
payload => v_payload_handle,
msgid => v_message_handle);
END;
--and try to dequeue from second session same message with using msg_id property
DECLARE
r_dequeue_options dbms_aq.dequeue_options_t;
r_message_properties dbms_aq.message_properties_t;
v_message_handle RAW(16);
l_corr_identifier VARCHAR2(128);
l_recipient_list dbms_aq.aq$_recipient_list_t;
v_payload_handle mesaj_t;
BEGIN
r_dequeue_options.wait := DBMS_AQ.NO_WAIT; -- if i change to DBMS_AQ.FOREVER then it will wait for new message for dequeuing, with no_wait you will get an exception immediately if there is no message for you in queue
r_dequeue_options.msgid := 'BBAB7BA403CD4B259A86B55783862912'; --replace this with your msg_id of your enqueued message
dbms_aq.dequeue(queue_name => 'mesaj_Q',
dequeue_options => r_dequeue_options,
message_properties => r_message_properties,
payload => v_payload_handle,
msgid => v_message_handle);
END;
conclusion :
with remove mode other session can not dequeue message when first session processing message and not committed yet

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1
But if we decide to use RRAS VPN for that application , which kind of VPN(PPTP,L2TP,SSTP,IKE) will be better in network speed?
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