Inverter::PostingChanges Class Reference

Class for storing the changes in frequencies for a term. More...

Collaboration diagram for Inverter::PostingChanges:

Public Member Functions
	PostingChanges (Xapian::docid did, Xapian::termcount wdf)
	Constructor for an added posting. More...
	PostingChanges (Xapian::docid did, Xapian::termcount wdf, bool)
	Constructor for a removed posting. More...
	PostingChanges (Xapian::docid did, Xapian::termcount old_wdf, Xapian::termcount new_wdf)
	Constructor for an updated posting. More...
void	add_posting (Xapian::docid did, Xapian::termcount wdf)
	Add a posting. More...
void	remove_posting (Xapian::docid did, Xapian::termcount wdf)
	Remove a posting. More...
void	update_posting (Xapian::docid did, Xapian::termcount old_wdf, Xapian::termcount new_wdf)
	Update a posting. More...
Xapian::termcount_diff	get_tfdelta () const
	Get the term frequency delta. More...
Xapian::termcount_diff	get_cfdelta () const
	Get the collection frequency delta. More...

Private Attributes
Xapian::termcount_diff	tf_delta
	Change in term frequency,. More...
Xapian::termcount_diff	cf_delta
	Change in collection frequency. More...
std::map< Xapian::docid, Xapian::termcount >	pl_changes
	Changes to this term's postlist. More...

Friends
class	GlassPostListTable

Detailed Description

Class for storing the changes in frequencies for a term.

Definition at line 49 of file glass_inverter.h.

Constructor & Destructor Documentation

PostingChanges() [1/3]

Inverter::PostingChanges::PostingChanges ( Xapian::docid  did, Xapian::termcount  wdf  )

inline

Constructor for an added posting.

Definition at line 63 of file glass_inverter.h.

PostingChanges() [2/3]

Inverter::PostingChanges::PostingChanges ( Xapian::docid  did, Xapian::termcount  wdf, bool    )

inline

Constructor for a removed posting.

Definition at line 70 of file glass_inverter.h.

References DELETED_POSTING.

PostingChanges() [3/3]

Inverter::PostingChanges::PostingChanges ( Xapian::docid  did, Xapian::termcount  old_wdf, Xapian::termcount  new_wdf  )

inline

Constructor for an updated posting.

Definition at line 77 of file glass_inverter.h.

Member Function Documentation

add_posting()

void Inverter::PostingChanges::add_posting ( Xapian::docid  did, Xapian::termcount  wdf  )

inline

Add a posting.

Definition at line 85 of file glass_inverter.h.

get_cfdelta()

Xapian::termcount_diff Inverter::PostingChanges::get_cfdelta ( ) const

inline

Get the collection frequency delta.

Definition at line 111 of file glass_inverter.h.

Referenced by GlassPostListTable::merge_changes().

get_tfdelta()

Xapian::termcount_diff Inverter::PostingChanges::get_tfdelta ( ) const

inline

Get the term frequency delta.

Definition at line 108 of file glass_inverter.h.

Referenced by GlassPostListTable::merge_changes().

remove_posting()

void Inverter::PostingChanges::remove_posting ( Xapian::docid  did, Xapian::termcount  wdf  )

inline

Remove a posting.

Definition at line 93 of file glass_inverter.h.

References DELETED_POSTING.

update_posting()

void Inverter::PostingChanges::update_posting ( Xapian::docid  did, Xapian::termcount  old_wdf, Xapian::termcount  new_wdf  )

inline

Update a posting.

Definition at line 101 of file glass_inverter.h.

Friends And Related Function Documentation

GlassPostListTable

friend class GlassPostListTable

friend

Definition at line 50 of file glass_inverter.h.

Member Data Documentation

cf_delta

Xapian::termcount_diff Inverter::PostingChanges::cf_delta

private

Change in collection frequency.

Definition at line 56 of file glass_inverter.h.

pl_changes

std::map<Xapian::docid, Xapian::termcount> Inverter::PostingChanges::pl_changes

private

Changes to this term's postlist.

Definition at line 59 of file glass_inverter.h.

Referenced by GlassPostListTable::merge_changes().

tf_delta

Xapian::termcount_diff Inverter::PostingChanges::tf_delta

private

Change in term frequency,.

Definition at line 53 of file glass_inverter.h.

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

• backends/glass/glass_inverter.h