| [[Exchange-MessageExchange]] | |
| = Message Exchange | |
| To support various message exchange patterns | |
| like one way Event Message and | |
| Request Reply messages Camel uses an Exchange | |
| interface which has a *pattern* property which can be set to *InOnly* | |
| for an Event Message which has a single inbound | |
| Message, or *InOut* for a | |
| Request Reply where there is an inbound and | |
| outbound Message. | |