Scatter-Gather behavior.

sends the same message to multiple message processors or multiple end points.

The routing message processor Scatter-Gather sends a request message to multiple targets concurrently. It collects the responses from all routes, and aggregates them into a single message, All payloads are combined to gather.

This follow Aggregator strategy && Multicast pattern

The Scatter-Gather router sends a message for concurrent processing to all configured routes. The thread executing the flow that owns the router waits until all routes complete or time out.

If there are no failures, Mule aggregates the results from each of the routes into a message collection (MessageCollection class). Failure in one route does not stop the Scatter-Gather from sending messages to its other configured routes, so it is possible that many, or all routes may fail concurrently.

By default, if any route fails, Scatter-Gather performs the following actions:

·         sets the exception payload accordingly for each route

·         throws a CompositeRoutingException, which maps each exception to its corresponding route using a sequential route ID.

By default, if any route fails, Scatter-Gather performs the following actions: sets the exception payload accordingly for each route throws a CompositeRoutingException, which maps each exception to its corresponding route using a sequential route ID Catching the CompositeRoutingException allows you to gather information on all failed routes.