-GroupInterface::GroupInterface(AbstractBlock* _owner, const QString& _name, int _direction) throw(Exception) : ConnectedInterface(_owner,_name,"expression","",_direction,AbstractInterface::Data) {
+GroupInterface::GroupInterface(AbstractBlock* _owner, const QString& _name, int _direction, int _purpose) throw(Exception) : ConnectedInterface(_owner,_name,AbstractInterface::Inherited,"",_direction,_purpose) {