- virtual COServerResponse GetDefaultPrefix(std::string *ServerPrefix) {};
- virtual COServerResponse AddContact(std::string Location, std::string Data) {};
- virtual COServerResponse EditContact(std::string Location, std::string Data) {};
- virtual COServerResponse DeleteContact(std::string Location) {};
- virtual COServerResponse GetServerEntityTagValue(std::string Location) {};
- virtual COServerResponse GetContact(std::string Location, std::string *PageData) {};
- virtual COContactList GetContactList(std::string SyncToken) {};
+ virtual COServerResponse GetDefaultPrefix(std::string *ServerPrefix) = 0;
+ virtual COServerResponse AddContact(std::string Location, std::string Data) = 0;
+ virtual COServerResponse EditContact(std::string Location, std::string Data) = 0;
+ virtual COServerResponse DeleteContact(std::string Location) = 0;
+ virtual COServerResponse GetServerEntityTagValue(std::string Location) = 0;
+ virtual COServerResponse GetContact(std::string Location, std::string *PageData) = 0;
+ virtual COContactList GetContactList(std::string SyncToken) = 0;