Steps to register a SAX transformer in the transformation service.
Content developers must create their own class derived from TransformersProvider class and overwrite the method getSAXHandler(ITransformerInformation info) that returns a new instance of SAX handler inherited from EPSAXDefaultHandler. A simple implementation of the method is to take the class name from the ITransformerInformation and instantiate it.
The only change from the settings for a simple provider is the class name of the service.