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The channel can still have multiple receivers to consume multiple messages concurrently, while the channel enforces the rule that only a single receiver consumes any one message.

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Point-to-Point using XML DSL:

Demonstration of point-to-point message with JMS components.

Code Block
languagexml
<routes>
    <route>
        <from uri="direct:begin"/>
        <to uri="jms:queue:hello"/>
    </route>
    <route>
        <from uri="jms:queue:hello"/>
        <to uri="bean:hello"/>
    </route>
</routes>

Components that Support Point-to-Point Channel

The following Apache Camel components support the point-to-point channel pattern:

  • JMS

  • ActiveMQ

  • SEDA

  • JPA

  • XMPP

JMS Point-to-Point

In JMS, a point-to-point channel is represented by a queue. For example, you can specify the endpoint URI for a JMS queue called Foo.Bar as follows:

...

NOTE: The qualifier of the queue, is optional because the JMS component creates a queue endpoint by default.

SEDA

This is the Apache Camel Staged Event-Driven Architecture (SEDA) component, and it is implemented using a blocking queue. We will use the SEDA component when you want to create a lightweight point-to-point channel that is internal to the Apache Camel application. For example, you can specify an endpoint URI for a SEDA queue called mySedaQueue as follows:

Code Block
seda:mySedaQueue

ActiveMQ

In ActiveMQ, a point-to-point channel is represented by a queue. For example, you can specify the endpoint URI for an ActiveMQ queue called Foo.Bar as follows:

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