Interfaces with the Google Cloud Messaging Service
This is a Business Operation class.
2 modes: Queue, InProc
List of properties can be set as settings in the configuration file format is a comma separated list of property names
The adapter instance
Construct a payload request for GCM (over HTTP)
This user callback method is called via initConfig() from %OnNew() or in the case of SOAP Services from OnPreSOAP()
This user callback method is called from %OnClose()