BrassValueManager Class Reference

#include <brass_values.h>

Collaboration diagram for BrassValueManager:

List of all members.

Public Member Functions

BrassValueManager (BrassPostListTable *postlist_table_, BrassTermListTable *termlist_table_)

Create a new BrassValueManager object.

void merge_changes ()

void add_document (Xapian::docid did, const Xapian::Document &doc, std::map< Xapian::valueno, ValueStats > &value_stats)

void delete_document (Xapian::docid did, std::map< Xapian::valueno, ValueStats > &value_stats)

void replace_document (Xapian::docid did, const Xapian::Document &doc, std::map< Xapian::valueno, ValueStats > &value_stats)

std::string get_value (Xapian::docid did, Xapian::valueno slot) const

void get_all_values (std::map< Xapian::valueno, std::string > &values, Xapian::docid did) const

Xapian::doccount get_value_freq (Xapian::valueno slot) const

std::string get_value_lower_bound (Xapian::valueno slot) const

std::string get_value_upper_bound (Xapian::valueno slot) const

void set_value_stats (std::map< Xapian::valueno, ValueStats > &value_stats)

Write the updated statistics to the table.

void reset ()

bool is_modified () const

void cancel ()

Private Member Functions

void add_value (Xapian::docid did, Xapian::valueno slot, const std::string &val)

void remove_value (Xapian::docid did, Xapian::valueno slot)

Xapian::docid get_chunk_containing_did (Xapian::valueno slot, Xapian::docid did, std::string &chunk) const

void get_value_stats (Xapian::valueno slot) const

Get the statistics for value slot slot.

void get_value_stats (Xapian::valueno slot, ValueStats &stats) const

Private Attributes

Xapian::valueno mru_slot

The value number for the most recently used value statistics.

ValueStats mru_valstats

The most recently used value statistics.

BrassPostListTable * postlist_table

BrassTermListTable * termlist_table

std::map< Xapian::docid,
std::string > slots

std::map< Xapian::valueno,
std::map< Xapian::docid,
std::string > > changes

Detailed Description

Definition at line 74 of file brass_values.h.

Constructor & Destructor Documentation

BrassValueManager::BrassValueManager	(	BrassPostListTable *	postlist_table_,
		BrassTermListTable *	termlist_table_
	)			`[inline]`

Create a new BrassValueManager object.

Definition at line 109 of file brass_values.h.

Member Function Documentation

void BrassValueManager::add_document	(	Xapian::docid	did,
		const Xapian::Document &	doc,
		std::map< Xapian::valueno, ValueStats > &	value_stats
	)

Definition at line 359 of file brass_values.cc.

References add_value(), ValueStats::freq, get_value_stats(), Xapian::ValueIterator::get_valueno(), BrassTable::is_open(), ValueStats::lower_bound, pack_uint(), slots, termlist_table, ValueStats::upper_bound, Xapian::Document::values_begin(), and Xapian::Document::values_end().

Referenced by BrassWritableDatabase::add_document_(), and replace_document().

void BrassValueManager::add_value	(	Xapian::docid	did,
		Xapian::valueno	slot,
		const std::string &	val
	)			`[private]`

Definition at line 133 of file brass_values.cc.

References changes.

Referenced by add_document().

void BrassValueManager::cancel ( ) [inline]

Definition at line 165 of file brass_values.h.

References changes, and slots.

Referenced by BrassDatabase::cancel().

void BrassValueManager::delete_document	(	Xapian::docid	did,
		std::map< Xapian::valueno, ValueStats > &	value_stats
	)

Definition at line 410 of file brass_values.cc.

References Assert, AssertRelParanoid, ValueStats::freq, BrassTable::get_exact_entry(), get_value_stats(), BrassTable::is_open(), ValueStats::lower_bound, make_slot_key(), remove_value(), slots, termlist_table, unpack_uint(), and ValueStats::upper_bound.

Referenced by BrassWritableDatabase::delete_document(), and replace_document().

void BrassValueManager::get_all_values	(	std::map< Xapian::valueno, std::string > &	values,
		Xapian::docid	did
	)			const

Definition at line 490 of file brass_values.cc.

References Assert, BrassTable::get_exact_entry(), get_value(), BrassTable::is_open(), make_slot_key(), slots, termlist_table, and unpack_uint().

Referenced by BrassDocument::do_get_all_values().

Xapian::docid BrassValueManager::get_chunk_containing_did	(	Xapian::valueno	slot,
		Xapian::docid	did,
		std::string &	chunk
	)			const `[private]`

Definition at line 156 of file brass_values.cc.

References BrassTable::cursor_get(), LOGCALL, make_valuechunk_key(), postlist_table, unpack_uint(), and unpack_uint_preserving_sort().

Referenced by get_value().

string BrassValueManager::get_value	(	Xapian::docid	did,
		Xapian::valueno	slot
	)			const

Definition at line 467 of file brass_values.cc.

References changes, and get_chunk_containing_did().

Referenced by BrassDocument::do_get_value(), and get_all_values().

Xapian::doccount BrassValueManager::get_value_freq ( Xapian::valueno slot ) const [inline]

Definition at line 132 of file brass_values.h.

References ValueStats::freq, get_value_stats(), mru_slot, and mru_valstats.

Referenced by BrassDatabase::get_value_freq().

std::string BrassValueManager::get_value_lower_bound ( Xapian::valueno slot ) const [inline]

Definition at line 137 of file brass_values.h.

References get_value_stats(), ValueStats::lower_bound, mru_slot, and mru_valstats.

Referenced by BrassDatabase::get_value_lower_bound().

void BrassValueManager::get_value_stats	(	Xapian::valueno	slot,
		ValueStats &	stats
	)			const `[private]`

Definition at line 529 of file brass_values.cc.

References Xapian::BAD_VALUENO, ValueStats::clear(), ValueStats::freq, BrassTable::get_exact_entry(), LOGCALL_VOID, ValueStats::lower_bound, make_valuestats_key(), mru_slot, postlist_table, unpack_string(), unpack_uint(), and ValueStats::upper_bound.

void BrassValueManager::get_value_stats ( Xapian::valueno slot ) const [private]

Get the statistics for value slot slot.

Definition at line 519 of file brass_values.cc.

References Xapian::BAD_VALUENO, LOGCALL_VOID, mru_slot, and mru_valstats.

Referenced by add_document(), delete_document(), get_value_freq(), get_value_lower_bound(), and get_value_upper_bound().

std::string BrassValueManager::get_value_upper_bound ( Xapian::valueno slot ) const [inline]

Definition at line 142 of file brass_values.h.

References get_value_stats(), mru_slot, mru_valstats, and ValueStats::upper_bound.

Referenced by BrassDatabase::get_value_upper_bound().

bool BrassValueManager::is_modified ( ) const [inline]

Definition at line 161 of file brass_values.h.

References changes.

Referenced by BrassDatabase::apply().

void BrassValueManager::merge_changes ( )

Definition at line 327 of file brass_values.cc.

References BrassTable::add(), changes, BrassTable::del(), BrassTable::is_open(), make_slot_key(), postlist_table, slots, termlist_table, and Brass::ValueUpdater::update().

Referenced by BrassWritableDatabase::open_value_list(), and BrassDatabase::set_revision_number().

void BrassValueManager::remove_value	(	Xapian::docid	did,
		Xapian::valueno	slot
	)			`[private]`

Definition at line 145 of file brass_values.cc.

References changes.

Referenced by delete_document().

void BrassValueManager::replace_document	(	Xapian::docid	did,
		const Xapian::Document &	doc,
		std::map< Xapian::valueno, ValueStats > &	value_stats
	)

Definition at line 454 of file brass_values.cc.

References add_document(), delete_document(), and Xapian::Document::internal.

Referenced by BrassWritableDatabase::replace_document().

void BrassValueManager::reset ( ) [inline]

Ignore any old cached valuestats.

Definition at line 156 of file brass_values.h.

References Xapian::BAD_VALUENO, and mru_slot.

Referenced by BrassDatabase::open_tables(), and BrassDatabase::open_tables_consistent().

void BrassValueManager::set_value_stats ( std::map< Xapian::valueno, ValueStats > & value_stats )

Write the updated statistics to the table.

If the freq member of the statistics for a particular slot is 0, the statistics for that slot will be cleared.

Parameters:

value_stats

The statistics to set.

Definition at line 562 of file brass_values.cc.

References BrassTable::add(), Xapian::BAD_VALUENO, BrassTable::del(), ValueStats::freq, LOGCALL_VOID, ValueStats::lower_bound, make_valuestats_key(), mru_slot, pack_string(), pack_uint(), postlist_table, and ValueStats::upper_bound.

Referenced by BrassWritableDatabase::apply().

Member Data Documentation

std::map<Xapian::valueno, std::map<Xapian::docid, std::string> > BrassValueManager::changes [private]

Definition at line 91 of file brass_values.h.

Referenced by add_value(), cancel(), get_value(), is_modified(), merge_changes(), and remove_value().

Xapian::valueno BrassValueManager::mru_slot [mutable, private]

The value number for the most recently used value statistics.

Set to Xapian::BAD_VALUENO if no value statistics are currently cached.

Definition at line 80 of file brass_values.h.

Referenced by get_value_freq(), get_value_lower_bound(), get_value_stats(), get_value_upper_bound(), reset(), and set_value_stats().

ValueStats BrassValueManager::mru_valstats [mutable, private]

The most recently used value statistics.

Definition at line 83 of file brass_values.h.

Referenced by get_value_freq(), get_value_lower_bound(), get_value_stats(), and get_value_upper_bound().

BrassPostListTable* BrassValueManager::postlist_table [private]

Definition at line 85 of file brass_values.h.

Referenced by get_chunk_containing_did(), get_value_stats(), merge_changes(), and set_value_stats().

std::map<Xapian::docid, std::string> BrassValueManager::slots [private]

Definition at line 89 of file brass_values.h.

Referenced by add_document(), cancel(), delete_document(), get_all_values(), and merge_changes().

BrassTermListTable* BrassValueManager::termlist_table [private]

Definition at line 87 of file brass_values.h.

Referenced by add_document(), delete_document(), get_all_values(), and merge_changes().

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

backends/brass/brass_values.h
backends/brass/brass_values.cc


Public Member Functions
	BrassValueManager (BrassPostListTable postlist_table_, BrassTermListTable termlist_table_)
	Create a new BrassValueManager object.
void	merge_changes ()
void	add_document (Xapian::docid did, const Xapian::Document &doc, std::map< Xapian::valueno, ValueStats > &value_stats)
void	delete_document (Xapian::docid did, std::map< Xapian::valueno, ValueStats > &value_stats)
void	replace_document (Xapian::docid did, const Xapian::Document &doc, std::map< Xapian::valueno, ValueStats > &value_stats)
std::string	get_value (Xapian::docid did, Xapian::valueno slot) const
void	get_all_values (std::map< Xapian::valueno, std::string > &values, Xapian::docid did) const
Xapian::doccount	get_value_freq (Xapian::valueno slot) const
std::string	get_value_lower_bound (Xapian::valueno slot) const
std::string	get_value_upper_bound (Xapian::valueno slot) const
void	set_value_stats (std::map< Xapian::valueno, ValueStats > &value_stats)
	Write the updated statistics to the table.
void	reset ()
bool	is_modified () const
void	cancel ()
Private Member Functions
void	add_value (Xapian::docid did, Xapian::valueno slot, const std::string &val)
void	remove_value (Xapian::docid did, Xapian::valueno slot)
Xapian::docid	get_chunk_containing_did (Xapian::valueno slot, Xapian::docid did, std::string &chunk) const
void	get_value_stats (Xapian::valueno slot) const
	Get the statistics for value slot slot.
void	get_value_stats (Xapian::valueno slot, ValueStats &stats) const
Private Attributes
Xapian::valueno	mru_slot
	The value number for the most recently used value statistics.
ValueStats	mru_valstats
	The most recently used value statistics.
BrassPostListTable *	postlist_table
BrassTermListTable *	termlist_table
std::map< Xapian::docid, std::string >	slots
std::map< Xapian::valueno, std::map< Xapian::docid, std::string > >	changes