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NCBI C++ ToolKit: CQueryFunctionBase Class Reference

Search Toolkit Book for CQueryFunctionBase

Base class for evaluation functions. More...

#include <util/qparse/query_exec.hpp>

Inheritance diagram for CQueryFunctionBase:

Collaboration diagram for CQueryFunctionBase:

Base class for evaluation functions.

Implementation guidelines for derived classes:
   1. Make it stateless. 
      All evaluation results should go to query node user object.
   2. Make it reentrant
   3. Make it thread safe and thread sync. (some functions may run in parallel)
      (stateless class satisfies both thread safety and reenterability)

See also

IQueryParseUserObject

Definition at line 67 of file query_exec.hpp.

The documentation for this class was generated from the following files:

• include/util/qparse/query_exec.hpp
• src/util/qparse/query_exec.cpp

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