WebSphere Message Brokers
File: ac30300_
Writer: Catherine Tucker

Task topic

This build: July 31, 2007 21:20:08

Writing Java

When you create a message flow, you include input nodes that receive messages and, optionally, output nodes that send out new or updated messages. If the processing that must be performed on the message requires it, you can include other nodes after the input node that are customized in Java to complete the actions that your applications need.

Some of the built-in nodes allow you to customize the processing that they provide. In a JavaCompute node, you can provide Java code that controls precisely the behavior of the node. This set of topics discusses how you can use Java to customize the JavaCompute node.

Using a JavaCompute node you can check and manipulate message content. You can:
  • Read the contents of the input message
  • Construct new output messages that are created from all, part, or none of the input message

Use the Debug perspective to debug a message flow that contains a JavaCompute node. When control passes to a JavaCompute node during debugging, the perspective opens the Java debugger, allowing you to step through the Java class code for the node.

Related concepts
Debug perspective
Related tasks
Managing Java Files
Debugging a message flow
Related reference
JavaCompute node
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Copyright IBM Corporation 1999, 2007Copyright IBM Corporation 1999, 2007. All Rights Reserved.
This build: July 31, 2007 21:20:08

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