wxSQLite3AggregateFunction Class Reference

Interface for user defined aggregate functions. More...

#include <wxsqlite3.h>

List of all members.

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

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Detailed Description

Interface for user defined aggregate functions.

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Constructor & Destructor Documentation

wxSQLite3AggregateFunction::wxSQLite3AggregateFunction

(

)

[inline]

Constructor.

virtual wxSQLite3AggregateFunction::~wxSQLite3AggregateFunction

(

)

[inline, virtual]

Virtual destructor.

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Member Function Documentation

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:

ctx	function context which can be used to access arguments and result value

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:

ctx	function context which can be used to access arguments and result value

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Friends And Related Function Documentation

friend class wxSQLite3FunctionContext [friend]

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

• wxsqlite3.h