| [[ExchangePattern-ExchangePattern]] |
| Exchange Pattern |
| ~~~~~~~~~~~~~~~~ |
| |
| There are many different _Message Exchange Patterns_ you can use in |
| messaging. This concept is also demonstrated in WSDL and JBI's MEPs. |
| |
| From there link:enterprise-integration-patterns.html[Enterprise |
| Integration Patterns] the common examples are |
| |
| * link:request-reply.html[Request Reply] |
| * link:event-message.html[Event Message] (or one way) |
| |
| In Camel we have an |
| http://camel.apache.org/maven/current/camel-core/apidocs/org/apache/camel/ExchangePattern.html[ExchangePattern] |
| enumeration which can be configured on the *exchangePattern* property on |
| the Message link:exchange.html[Exchange] indicating if a message |
| exchange is a one way link:event-message.html[Event Message] (InOnly) or |
| a link:request-reply.html[Request Reply] message exchange (InOut). |
| |
| For example to override the default pattern on a link:jms.html[JMS] |
| endpoint you could use this URI |
| |
| [source,java] |
| --------------------------------- |
| jms:MyQueue?exchangePattern=InOut |
| --------------------------------- |
