766 B
766 B
Routing Messages With Wild Cards
Apache ActiveMQ allows the routing of messages via wildcard addresses.
If a queue is created with an address of say queue.news.#
then it will
receive any messages sent to addresses that match this, for instance
queue.news.europe
or queue.news.usa
or queue.news.usa.sport
. If
you create a consumer on this queue, this allows a consumer to consume
messages which are sent to a hierarchy of addresses.
Note
In JMS terminology this allows "topic hierarchies" to be created.
To enable this functionality set the property
wild-card-routing-enabled
in the activemq-configuration.xml
file to
true
. This is true
by default.
For more information on the wild card syntax take a look at ? chapter, also see ?.