The communication between remote routes

In Camel, when you are local to one Karaf instance, you have different ways to use a route from another route as follows:

• The direct endpoint is synchronous, which is local to one CamelContext (only routes in the same CamelContext component can communicate using direct).

• The direct-vm endpoint is exactly the same as direct but global to the JVM. It means that routes from different CamelContext can communicate using direct-vm.

• The staged event-driven architecture (SEDA) endpoint is asynchronous, which is local to one CamelContext (only routes in the same CamelContext component can communicate using SEDA). A seda endpoint (producer) creates a queue (BlockingQueue) and pushes messages in this queue. Another seda endpoint (consumer) consumes from this queue. A producer and consumer use different threads.

• The vm endpoint is exactly the same as seda but global to the JVM. It means that routes from different CamelContext can communicate using vm.

These components...