Publish Subscribe Channel

Camel supports the Publish Subscribe Channel from the EIP patterns using for example the following components:

• JMS for working with JMS Topics for high performance, clustering and load balancing
• XMPP when using rooms for group communication
• SEDA for working with SEDA in the same CamelContext which can work in pub-sub, but allowing multiple consumers.
• VM as SEDA but for intra-JVM.

Using Routing Logic

Another option is to explicitly list the publish-subscribe relationship in your routing logic; this keeps the producer and consumer decoupled but lets you control the fine grained routing configuration using the DSL or Xml Configuration.

Using the Fluent Builders

{snippet:id=multicast|lang=java|url=camel/trunk/camel-core/src/test/java/org/apache/camel/builder/RouteBuilderTest.java}

Using the Spring XML Extensions

{snippet:id=example|lang=xml|url=camel/trunk/components/camel-spring/src/test/resources/org/apache/camel/spring/xml/buildStaticRecipientList.xml}