A visitor that calls the specified function on every non-aggregated full-text search function (Item_func_match) it encounters when it is used in a PREFIX+POSTFIX walk with WalkItem(). More...

#include <item_func.h>

Inheritance diagram for NonAggregatedFullTextSearchVisitor:

[legend]

Public Member Functions
	NonAggregatedFullTextSearchVisitor (std::function< bool(Item_func_match *)> func)

bool	operator() (Item *item)

Private Attributes
std::function< bool(Item_func_match *)>	m_func

Additional Inherited Members
Private Member Functions inherited from Item_tree_walker
	Item_tree_walker ()

	~Item_tree_walker ()

	Item_tree_walker (const Item_tree_walker &)=delete

Item_tree_walker &	operator= (const Item_tree_walker &)=delete

void	stop_at (const Item *i)
	Stops walking children of this item. More...

bool	is_stopped (const Item *i)

Detailed Description

A visitor that calls the specified function on every non-aggregated full-text search function (Item_func_match) it encounters when it is used in a PREFIX+POSTFIX walk with WalkItem().

It skips every item that is wrapped in an aggregate function, and also every item wrapped in a reference, as the items behind the reference are already handled elsewhere (in another query block or in another element of the SELECT list).

Constructor & Destructor Documentation

◆ NonAggregatedFullTextSearchVisitor()

NonAggregatedFullTextSearchVisitor::NonAggregatedFullTextSearchVisitor ( std::function< bool(Item_func_match *)> func )

explicit

Member Function Documentation

◆ operator()()

bool NonAggregatedFullTextSearchVisitor::operator() ( Item * item )

Member Data Documentation

◆ m_func

std::function<bool(Item_func_match *)> NonAggregatedFullTextSearchVisitor::m_func

private

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

sql/item_func.h
sql/item_func.cc

Public Member Functions

Private Attributes