wxSQLite3  4.4.3
Public Member Functions | Friends | List of all members
wxSQLite3AggregateFunction Class Referenceabstract

Interface for user defined aggregate functions. More...

#include <wxsqlite3.h>

Public Member Functions

 wxSQLite3AggregateFunction ()
 Constructor. More...
 
virtual ~wxSQLite3AggregateFunction ()
 Virtual destructor. More...
 
virtual void Aggregate (wxSQLite3FunctionContext &ctx)=0
 Execute the aggregate of the function. More...
 
virtual void Finalize (wxSQLite3FunctionContext &ctx)=0
 Prepare the result of the aggregate function. More...
 

Friends

class wxSQLite3FunctionContext
 

Detailed Description

Interface for user defined aggregate functions.

Constructor & Destructor Documentation

◆ wxSQLite3AggregateFunction()

wxSQLite3AggregateFunction::wxSQLite3AggregateFunction ( )
inline

Constructor.

◆ ~wxSQLite3AggregateFunction()

virtual wxSQLite3AggregateFunction::~wxSQLite3AggregateFunction ( )
inlinevirtual

Virtual destructor.

Member Function Documentation

◆ Aggregate()

virtual void wxSQLite3AggregateFunction::Aggregate ( wxSQLite3FunctionContext ctx)
pure virtual

Execute the aggregate of the function.

This method is invoked for each row of the result set of the query using the aggregate function.

Parameters
ctxfunction context which can be used to access arguments and result value

◆ Finalize()

virtual void wxSQLite3AggregateFunction::Finalize ( wxSQLite3FunctionContext ctx)
pure virtual

Prepare the result of the aggregate function.

This method is invoked after all rows of the result set of the query using the aggregate function have been processed. Usually the final result is calculated and returned in this method.

Parameters
ctxfunction context which can be used to access arguments and result value

Friends And Related Function Documentation

◆ wxSQLite3FunctionContext

friend class wxSQLite3FunctionContext
friend

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