Providing Transformers 

A transformer provider has a portal archive (PAR) file that contains the transformers and is responsible for registering and removing the transformers from the list of transformers in the transformation service. All transformers will be registered with type persistent. The provider can contain several XSL and SAX transformers.

Default implementation class of the transformer provider PAR:

com.sap.portal.httpconnectivity.transformationservice.TransformersProvider

All customized classes inherit from this class.