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This chapter introduces various types of routers and how each of them can be simulated using WSO2 ESB.
 | How to handle a situation when the implementation of a single logical function (such as an inventory check) is spread across multiple physical systems. | ||||
 | How a component avoids receiving uninteresting messages. | ||||
 | How to avoid the dependency of a router in all possible destinations, while maintaining its efficiency. | ||||
 | How to route a message to a list of dynamically specified recipients. | ||||
 | How to process a message if it contains multiple elements, each of which may have to be processed in a different way. | ||||
 | How to combine the results of individual but related messages so that they can be processed as a whole. | ||||
 | How to maintain the overall flow when processing a message consisting of multiple elements, each of which may require different processing. | ||||
| How to maintain the overall flow when a message needs to be sent to multiple recipients, each of which may send a reply. | |||||
 | How to route a message consecutively through a series of steps when the sequence of the steps is not known at design time and may vary for each message. | ||||
 | How to route a message through multiple processing steps, when the required steps may not be known at design time and may not be sequential. | ||||
 | How to decouple the destination of a message from the sender and maintain central control over the flow of messages. | ||||
| Resequencer | How to put a stream of related but out-of-sequence messages back into the correct order.
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Message Routing, Integration Patterns with WSO2 ESB |