Routers in Mule implement the Message Router pattern described in the seminal work on integration patterns: Enterprise Integration Patterns, Gregor Hohpe and Bobby Woolf. Addison-Wesley Professional; October 20, 2003. They allow you to route a Mule event from one Event Processor to one or many Event Processors.
The Content Enricher is a useful content transformation pattern that elaborates a basic message with information from another system. A typical use case is described in the seminal work on integration patterns: Enterprise Integration Patterns, Gregor Hohpe and Bobby Woolf. Addison-Wesley Professional; October 20, 2003. It describes a scenario where one system may provide a customer ID, but the target system requires the customer name and address. This additional information must be retrieved from another system and combined with the customer ID to form the information required by the target system.
It is no secret that migrating to Mule 4 from Mule 3 is a challenge. Mule 4 saw the biggest change in the Mule runtime since its inception. However, with this series of “Mule 4 migration made easy” blogs, I will attempt to soothe any pain you might feel while migrating and provide tips and tricks on how to make the best from Mule 4.
