HOW TO: Create a Oracle AQ Topic JMS message for java delivery

The steps to create a AQ Topic for a JMS text message. These are the pre-requisites in preparation to the following blog, HOW TO: Enqueue a JMS_TEXT_MESSAGE from java to Oracle database Queue
March 12, 2015
Oracle-AQJMSQueuesTopicsJMS

-- ---------------------------------------
-- Create a user and assign the privileges
-- ---------------------------------------
GRANT connect, resource TO ORACLEAQJMSUSER IDENTIFIED BY ORACLEAQJMSUSER;
GRANT aq_user_role TO ORACLEAQJMSUSER;
GRANT execute ON sys.dbms_aqadm TO ORACLEAQJMSUSER;
GRANT execute ON sys.dbms_aq TO ORACLEAQJMSUSER;
GRANT execute ON sys.dbms_aqin TO ORACLEAQJMSUSER;
GRANT execute ON sys.dbms_aqjms TO ORACLEAQJMSUSER;

-- --------------------
-- Create a queue table
-- --------------------
connect ORACLEAQJMSUSER/ORACLEAQJMSUSER;

BEGIN
dbms_aqadm.create_queue_table (
queue_table => 'AQ_MESSAGE_QUEUE_TABLE',
queue_payload_type => 'sys.aq$_jms_text_message',
multiple_consumers => true
);
END;

-- --------------
-- Create a queue
-- --------------
BEGIN
  DBMS_AQADM.CREATE_QUEUE (
    queue_name  => 'AQ_MESSAGE_QUEUE',
    queue_table => 'AQ_MESSAGE_QUEUE_TABLE'
  );
  DBMS_AQADM.START_QUEUE (
    queue_name => 'AQ_MESSAGE_QUEUE'
  );
END;



/* Drop queue: */  
EXECUTE dbms_aqadm.drop_queue (Queue_name => 'ORACLEAQJMSUSER.AQ_MESSAGE_QUEUE');  
EXECUTE dbms_aqadm.drop_queue (Queue_name => 'ORACLEAQJMSUSER.AQ_MESSAGE_QUEUE_TABLE');   

/*Drop Queue Table */
EXECUTE dbms_aqadm.drop_queue_table (queue_table => 'ORACLEAQJMSUSER.AQ_MESSAGE_QUEUE');  
EXECUTE dbms_aqadm.drop_queue_table (queue_table => 'ORACLEAQJMSUSER.AQ_MESSAGE_QUEUE_TABLE');   



-- -------------------
-- Create a subscriber (aka agent)
-- You only need a subscriber (or a list of recipients) for multiple consumers on the queue (subscribers are not needed for non-multiple consumers)
-- -------------------
/* Anonymous PL/SQL block for adding a subscriber at a designated queue in a 
designated schema at a database link: */ 
DECLARE 
   subscriber          sys.aq$_agent; 
BEGIN 
	/*sys.aq$_agent (, ,*/
   subscriber := sys.aq$_agent ('OIM_SUBSCRIBER', 'null', 0); 
   DBMS_AQADM.ADD_SUBSCRIBER(
     queue_name         => 'ORACLEAQJMSUSER.AQ_MESSAGE_QUEUE', 
      subscriber            =>  subscriber); 
 END; 
 


Create user

https://technicalconfessions.com/images/postimages/postimages/_377_3_Creating user within SQL command.png

Confirm user authentication

https://technicalconfessions.com/images/postimages/postimages/_377_4_ensuring the user can authenticate.png

View queues within SQL developer

https://technicalconfessions.com/images/postimages/postimages/_377_5_checking that the queues and topics are set.png

AQ Queue Details

https://technicalconfessions.com/images/postimages/postimages/_377_6_confirm the queue details.png

About the author

Daniel is a Technical Manager with over 10 years of consulting expertise in the Identity and Access Management space.
Daniel has built from scratch this blog as well as technicalconfessions.com
Follow Daniel on twitter @nervouswiggles

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