#include <query.h>

Classes
struct	dim
	The second-step struct for processing queries. More...

struct	range
	The first-step struct for processing queries. More...

Public Member Functions
	Query (genie::table::inv_table *ref, int index)

	Query (genie::table::inv_table &ref, int index)

	Query ()

genie::table::inv_table *	ref_table ()
	The refrenced table's pointer. More...

void	attr (int index, int low, int up, float weight, int order)
	Modify the matching range and weight of an attribute. More...

void	attr (int index, int value, float weight, float selectivity, int order)
	Set an attr struct. More...

void	attr (int index, int low, int up, float weight, float selectivity, int order)
	Set an attr struct. More...

void	clear_dim (int index)
	Delete the dim at index. More...

void	selectivity (float s)
	Set the selectivity. More...

float	selectivity ()
	The selectivity of the current settings. More...

void	apply_adaptive_query_range ()
	Construct query in adaptice range mode. More...

void	build_and_apply_load_balance (int max_load)
	The function would construct query in the setting where load balance feature is on. More...

void	topk (int k)
	Set top k matches. More...

int	topk ()
	Get top k matches. More...

void	build ()
	Construct the query based on a normal table. More...

void	build (std::vector< dim > &)

int	dump (std::vector< dim > &vout)

int	dump (std::vector< range > &ranges)

void	print (int limit)
	Print out the information of all dims. More...

int	index ()
	Get index of the query. More...

int	count_ranges ()
	Get value of _ count. More...

void	build_sequence ()
	build query dim for sequence search More...

Public Attributes
bool	is_load_balanced
	Whether this query set has been applied load balance feature. More...

bool	use_load_balance
	Whether this query set is to use load balance. More...

std::vector< dim >	_dims
	Collection of dims of all queries. More...

Detailed Description

Definition at line 34 of file query.h.

Constructor & Destructor Documentation

◆ Query() [1/3]

genie::query::Query::Query	(	genie::table::inv_table *	ref,
		int	index
	)

Definition at line 38 of file query.cc.

◆ Query() [2/3]

genie::query::Query::Query	(	genie::table::inv_table &	ref,
		int	index
	)

Definition at line 51 of file query.cc.

◆ Query() [3/3]

genie::query::Query::Query ( )

Definition at line 25 of file query.cc.

Member Function Documentation

◆ apply_adaptive_query_range()

void genie::query::Query::apply_adaptive_query_range ( )

Construct query in adaptice range mode.

The function will construct adaptive query based the selectivity. Usually the range of the query would be expended after the function is called.

Definition at line 196 of file query.cc.

◆ attr() [1/3]

void genie::query::Query::attr	(	int	index,
		int	low,
		int	up,
		float	weight,
		int	order
	)

Modify the matching range and weight of an attribute.

Parameters

index	Attribute index
low	Lower bound (included)
up	Upper bound (included)
weight	The weight
order	Used in subsequence search

Definition at line 76 of file query.cc.

◆ attr() [2/3]

void genie::query::Query::attr	(	int	index,
		int	value,
		float	weight,
		float	selectivity,
		int	order
	)

Set an attr struct.

Parameters

index	Attribute index
value	Value of this attr
weight	Weight of this attr
selectivity	The selectivity
order	Used in subsequence search

Definition at line 81 of file query.cc.

◆ attr() [3/3]

void genie::query::Query::attr	(	int	index,
		int	low,
		int	up,
		float	weight,
		float	selectivity,
		int	order
	)

Set an attr struct.

Parameters

index	Attribute index
low	Lower bound (included)
up	Upper bound (included)
weight	Weight of this attr
selectivity	The selectivity
order	Used in subsequence search

Definition at line 87 of file query.cc.

◆ build() [1/2]

void genie::query::Query::build ( )

Construct the query based on a normal table.

Definition at line 273 of file query.cc.

◆ build() [2/2]

void genie::query::Query::build ( std::vector< dim > & )

◆ build_and_apply_load_balance()

void genie::query::Query::build_and_apply_load_balance ( int max_load )

The function would construct query in the setting where load balance feature is on.

Parameters

max_load Max_load = posting_list_max_length * multiplier

The function is used when load balance feature is turned on. The inverted list is divided into sublists. This function is to re-locate query range on the inverted list, based on the sublists locations.

Definition at line 141 of file query.cc.

◆ build_sequence()

void genie::query::Query::build_sequence ( )

build query dim for sequence search

Definition at line 378 of file query.cc.

◆ clear_dim()

void genie::query::Query::clear_dim ( int index )

Delete the dim at index.

Parameters

index The index of the dim to be deleted.

Definition at line 116 of file query.cc.

◆ count_ranges()

int genie::query::Query::count_ranges ( )

Get value of _ count.

Definition at line 584 of file query.cc.

◆ dump() [1/2]

int genie::query::Query::dump ( std::vector< dim > & vout )

◆ dump() [2/2]

int genie::query::Query::dump ( std::vector< range > & ranges )

◆ index()

int genie::query::Query::index ( )

Get index of the query.

Definition at line 579 of file query.cc.

◆ print()

void genie::query::Query::print ( int limit )

Print out the information of all dims.

Parameters

limit The maximum number of dims to print out.

Definition at line 589 of file query.cc.

◆ ref_table()

inv_table * genie::query::Query::ref_table ( )

The refrenced table's pointer.

Returns: The pointer points to the refrenced table.

Definition at line 71 of file query.cc.

◆ selectivity() [1/2]

void genie::query::Query::selectivity ( float s )

Set the selectivity.

Parameters

s	Selectivity to set

Definition at line 131 of file query.cc.

◆ selectivity() [2/2]

float genie::query::Query::selectivity ( )

The selectivity of the current settings.

Returns: The current selectivity.

Definition at line 136 of file query.cc.

◆ topk() [1/2]

void genie::query::Query::topk ( int k )

Set top k matches.

Parameters

k	The top k matches.

Definition at line 263 of file query.cc.

◆ topk() [2/2]

int genie::query::Query::topk ( )

Get top k matches.

Returns: The top k matches.

Definition at line 268 of file query.cc.

Member Data Documentation

◆ _dims

vector< dim > genie::query::Query::_dims

Collection of dims of all queries.

Definition at line 130 of file query.h.

◆ is_load_balanced

bool genie::query::Query::is_load_balanced

Whether this query set has been applied load balance feature.

Definition at line 121 of file query.h.

◆ use_load_balance

bool genie::query::Query::use_load_balance

Whether this query set is to use load balance.

Definition at line 125 of file query.h.

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

/home/lubos/genie-dev/src/genie/query/query.h
/home/lubos/genie-dev/src/genie/query/query.cc

Classes

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Query() [1/3]

◆ Query() [2/3]

◆ Query() [3/3]

Member Function Documentation

◆ apply_adaptive_query_range()

◆ attr() [1/3]

◆ attr() [2/3]

◆ attr() [3/3]

◆ build() [1/2]

◆ build() [2/2]

◆ build_and_apply_load_balance()

◆ build_sequence()

◆ clear_dim()

◆ count_ranges()

◆ dump() [1/2]

◆ dump() [2/2]

◆ index()

◆ print()

◆ ref_table()

◆ selectivity() [1/2]

◆ selectivity() [2/2]

◆ topk() [1/2]

◆ topk() [2/2]

Member Data Documentation

◆ _dims

◆ is_load_balanced

◆ use_load_balance