HoneyInverter::PostingChanges Class Reference

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

Collaboration diagram for HoneyInverter::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	get_tfdelta () const
	Get the term frequency delta. More...
Xapian::termcount	get_cfdelta () const
	Get the collection frequency delta. More...

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

Friends
class	HoneyPostListTable

Detailed Description

Class for storing the changes in frequencies for a term.

Definition at line 52 of file honey_inverter.h.

Constructor & Destructor Documentation

PostingChanges() [1/3]

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

inline

Constructor for an added posting.

Definition at line 72 of file honey_inverter.h.

References pl_changes.

PostingChanges() [2/3]

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

inline

Constructor for a removed posting.

Definition at line 79 of file honey_inverter.h.

References HoneyInverter::DELETED_POSTING, and pl_changes.

PostingChanges() [3/3]

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

inline

Constructor for an updated posting.

Definition at line 87 of file honey_inverter.h.

References pl_changes.

Member Function Documentation

add_posting()

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

inline

Add a posting.

Definition at line 96 of file honey_inverter.h.

References cf_delta, pl_changes, tf_delta, and UNSIGNED_OVERFLOW_OK.

get_cfdelta()

Xapian::termcount HoneyInverter::PostingChanges::get_cfdelta ( ) const

inline

Get the collection frequency delta.

Definition at line 124 of file honey_inverter.h.

References cf_delta.

get_tfdelta()

Xapian::termcount HoneyInverter::PostingChanges::get_tfdelta ( ) const

inline

Get the term frequency delta.

Definition at line 121 of file honey_inverter.h.

References tf_delta.

remove_posting()

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

inline

Remove a posting.

Definition at line 105 of file honey_inverter.h.

References cf_delta, HoneyInverter::DELETED_POSTING, pl_changes, tf_delta, and UNSIGNED_OVERFLOW_OK.

update_posting()

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

inline

Update a posting.

Definition at line 114 of file honey_inverter.h.

References cf_delta, pl_changes, and UNSIGNED_OVERFLOW_OK.

Friends And Related Function Documentation

HoneyPostListTable

friend class HoneyPostListTable

friend

Definition at line 53 of file honey_inverter.h.

Member Data Documentation

cf_delta

Xapian::termcount HoneyInverter::PostingChanges::cf_delta

private

Change in collection frequency.

Note: Stored as an unsigned quantity to add to current cf.

Definition at line 65 of file honey_inverter.h.

Referenced by add_posting(), get_cfdelta(), remove_posting(), and update_posting().

pl_changes

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

private

Changes to this term's postlist.

Definition at line 68 of file honey_inverter.h.

Referenced by add_posting(), PostingChanges(), remove_posting(), and update_posting().

tf_delta

Xapian::termcount HoneyInverter::PostingChanges::tf_delta

private

Change in term frequency.

Note: Stored as an unsigned quantity to add to current tf.

Definition at line 59 of file honey_inverter.h.

Referenced by add_posting(), get_tfdelta(), and remove_posting().

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

• backends/honey/honey_inverter.h