filter-factory-c-.md
The FilterFactory API provides the following methods for extension by subclasses:
virtual void plan(ServerInterface &srvInterface, PlanContext &planCtxt);
virtual UDFilter * prepare(ServerInterface &srvInterface, PlanContext &planCtxt)=0;
virtual void getParameterType(ServerInterface &srvInterface, SizedColumnTypes ¶meterTypes);
After creating your FilterFactory
, you must register it with the RegisterFactory
macro.