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Mule ESB Cookbook by Uchit Vyas, Azaz Desai, Abdul Samad, Dr. Zakir Laliwala

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Using message processors to control the message flow

A message processor is the basic building block of all elements in Mule. These blocks can be glued together to create Mule flows. The message processor is a necessary building block for any project in Mule. You will often need to perform some business logic as part of your flow.

Getting ready

Let's see an example of message processors. In this example, we will see how we can send and receive messages within a flow.

  1. We use two components: STDIO and Java. Open Mule Studio and enter the name of the workspace as shown in the following screenshot:
    Getting ready
  2. To create a new project, go to File | New | Mule Project ...

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