This Confluence has been LDAP enabled, if you are an ASF Committer, please use your LDAP Credentials to login. Any problems file an INFRA jira ticket please.

Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.
Comment: Migration of unmigrated content due to installation of a new plugin

Request Reply

Camel supports the Request Reply from the EIP patterns by supporting the Exchange Pattern on a Message which can be set to InOut to indicate a request/reply. Camel Components then implement this pattern using the underlying transport or protocols.

For example when using JMS with InOut the component will by default perform these actions

  • create by default a temporary inbound queue
  • set the JMSReplyTo destination on the request message
  • set the JMSCorrelationID on the request message
  • send the request message
  • consume the response and associate the inbound message to the request using the JMSCorrelationID (as you may be performing many concurrent request/responses).
Tip
titleRelated

See the related Event Message message

Explicitly specifying InOut

When consuming messages from JMS a Request-Reply is indicated by the presence of the JMSReplyTo header.

You can explicitly force an endpoint to be in Request Reply mode by setting the exchange pattern on the URI. e.g.

Code Block
jms:MyQueue?exchangePattern=InOut

You can specify the exchange pattern in DSL rule or Spring configuration.

Wiki Markup
{snippet:id=example|lang=java|url=camel/trunk/camel-core/src/test/java/org/apache/camel/processor/SetExchangePatternTest.java}
Wiki Markup
{snippet:id=example|lang=xml|url=camel/trunk/components/camel-spring/src/test/resources/org/apache/camel/spring/processor/setExchangePattern.xml}
Include Page
Using This Pattern
Using This Pattern