Advanced Queuing - Oracle

JMS Publish-Subscribe Model Features
JMSPriority < 3 AND JMSCorrelationID = ’Fiction’
JMS Message header fields or properties:
color IN (’RED’, BLUE’, ’GREEN’) AND price < 30000
User-defined message properties:
For topics containing AdtMessages the selector must be a SQL expression on the
message payload contents or priority or correlationID.
Selector on priority or correlation is specified as follows
priority < 3 AND corrid = ’Fiction’
Selector on message payload is specified as follows
tab.user_data.color = ’GREEN’ AND tab.user_data.price < 30000
The syntax for the selector is described in detail in Oracle9i Supplied Java Packages
Reference, createDurableSubscriber.
Remote subscribers are defined using the createRemoteSubscriber call.The
remote subscriber may be a specific consumer at the remote topic or all subscribers
at the remote topic
A remote subscriber is defined using the AQjmsAgent structure. An AQjmsAgent
consists of a name and address. The name refers to the consumer_name at the
remote topic. The address refers to the remote topic:
.[@dblink]
To publish messages to a particular consumer at the remote topic, the
subscription_name of the recipient at the remote topic must be specified in
the name field of AQjmsAgent. The remote topic must be specified in the
address field of AQjmsAgent.
To publish messages to all subscribers of the remote topic, the name field of
AQjmsAgent must be set to null. The remote topic must be specified in the
address field of AQjmsAgent.
In the BooksOnline application there is one local subscriber SUBS1 and two remote
subscribers -
West_Shipping at the remote topic WS.WS_bookedorders_topic
East_Shipping at ES.ES_booked_orders_topic
12-46 Oracle9i Application Developer’s Guide - Advanced Queuing