ChertPositionListTable Class Reference

#include <chert_positionlist.h>

Inheritance diagram for ChertPositionListTable:

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Collaboration diagram for ChertPositionListTable:

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List of all members.

Public Member Functions
	ChertPositionListTable (const string &dbdir, bool readonly)
	Create a new ChertPositionListTable object.
void	set_positionlist (Xapian::docid did, const string &tname, Xapian::PositionIterator pos, const Xapian::PositionIterator &pos_end, bool check_for_update)
	Set the position list for term tname in document did.
void	delete_positionlist (Xapian::docid did, const string &tname)
	Delete the position list for term tname in document did.
Xapian::termcount	positionlist_count (Xapian::docid did, const string &term) const
	Return the number of entries in specified position list.
Static Public Member Functions
static string	make_key (Xapian::docid did, const string &term)

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Detailed Description

Definition at line 35 of file chert_positionlist.h.

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Constructor & Destructor Documentation

ChertPositionListTable::ChertPositionListTable	(	const string &	dbdir,
		bool	readonly
	)			[inline]

Create a new ChertPositionListTable object.

This method does not create or open the table on disk - you must call the create() or open() methods respectively!

Parameters:

	dbdir	The directory the chert database is stored in.
	readonly	true if we're opening read-only, else false.

Definition at line 52 of file chert_positionlist.h.

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Member Function Documentation

void ChertPositionListTable::delete_positionlist	(	Xapian::docid	did,
		const string &	tname
	)			[inline]

Delete the position list for term tname in document did.

Definition at line 67 of file chert_positionlist.h.

References ChertTable::del(), and make_key().

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

static string ChertPositionListTable::make_key	(	Xapian::docid	did,
		const string &	term
	)			[inline, static]

Definition at line 37 of file chert_positionlist.h.

References pack_uint_preserving_sort().

Referenced by delete_positionlist(), positionlist_count(), ChertPositionList::read_data(), and set_positionlist().

Xapian::termcount ChertPositionListTable::positionlist_count	(	Xapian::docid	did,
		const string &	term
	)			const

Return the number of entries in specified position list.

Definition at line 71 of file chert_positionlist.cc.

References ChertTable::get_exact_entry(), LOGCALL_VOID, make_key(), and unpack_uint().

void ChertPositionListTable::set_positionlist	(	Xapian::docid	did,
		const string &	tname,
		Xapian::PositionIterator	pos,
		const Xapian::PositionIterator &	pos_end,
		bool	check_for_update
	)

Set the position list for term tname in document did.

Parameters:

check_for_update

If true, check if the new list is the same as the existing list (if there is one).

Definition at line 37 of file chert_positionlist.cc.

References ChertTable::add(), Assert, Xapian::BitWriter::encode(), Xapian::BitWriter::encode_interpolative(), Xapian::BitWriter::freeze(), ChertTable::get_exact_entry(), LOGCALL_VOID, make_key(), and pack_uint().

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

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

• backends/chert/chert_positionlist.h
• backends/chert/chert_positionlist.cc