void setDataTemplateCallback(DataTemplateCallbackFunction *f) { dataTemplateCallbackFunction = f;
void setDataTemplateCallback(IpfixReceiver* ipfixReceiver, DataTemplateCallbackFunction* f) { ipfixReceiver->dataTemplateCallbackFunction = f;
void setDataTemplateCallback(DataTemplateCallbackFunction *f) {	dataTemplateCallbackFunction = f;	}