938 B
938 B
Routing Messages With Wild Cards
Apache ActiveMQ Artemis 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.
This functionality is enabled by default. To turn it off add the following to the broker.xml
configuration.
<wildcard-addresses>
<enabled>false</enabled>
</wildcard-addresses>
For more information on the wild card syntax and how to configure it, take a look at wildcard syntax chapter, also see the topic hierarchy example in the examples.