In this chapter, we will cover:

f Using the Service Callout action to invoke a service

f Using the Publish action to asynchronously invoke a service

f Using the Java Callout action to invoke Java code

f Using the Java Callout action with XMLBeans

f Using custom XPath functions

f Using the For Each action to process a collection

f Using dynamic Split-Join to perform work in parallel

f Using the Validate action to perform message validation

f Enabling/disabling a Validate action dynamically

f Creating private proxy service