xapian-core
1.4.26
|
#include <chert_alldocsmodifiedpostlist.h>
Public Member Functions | |
ChertAllDocsModifiedPostList (Xapian::Internal::intrusive_ptr< const ChertDatabase > db_, Xapian::doccount doccount_, const map< Xapian::docid, Xapian::termcount > &doclens_) | |
Xapian::docid | get_docid () const |
Return the current docid. More... | |
Xapian::termcount | get_doclength () const |
Return the length of current document. More... | |
Xapian::termcount | get_unique_terms () const |
Return the number of unique terms in the current document. More... | |
PostList * | next (double w_min) |
Advance the current position to the next document in the postlist. More... | |
PostList * | skip_to (Xapian::docid desired_did, double w_min) |
Skip forward to the specified docid. More... | |
bool | at_end () const |
Return true if the current position is past the last entry in this list. More... | |
std::string | get_description () const |
Return a string description of this object. More... | |
Public Member Functions inherited from ChertAllDocsPostList | |
ChertAllDocsPostList (Xapian::Internal::intrusive_ptr< const ChertDatabase > db_, Xapian::doccount doccount_) | |
Xapian::doccount | get_termfreq () const |
Return the exact term frequency. More... | |
Xapian::termcount | get_doclength () const |
Return the length of current document. More... | |
Xapian::termcount | get_wdf () const |
Return the wdf for the document at the current position. More... | |
PositionList * | read_position_list () |
Read the position list for the term in the current document and return a pointer to it (owned by the PostList). More... | |
PositionList * | open_position_list () const |
Read the position list for the term in the current document and return a pointer to it (not owned by the PostList). More... | |
std::string | get_description () const |
Return a string description of this object. More... | |
Public Member Functions inherited from ChertPostList | |
ChertPostList (Xapian::Internal::intrusive_ptr< const ChertDatabase > this_db_, const string &term, bool keep_reference) | |
Default constructor. More... | |
~ChertPostList () | |
Destructor. More... | |
bool | jump_to (Xapian::docid desired_did) |
Used for looking up doclens. More... | |
Xapian::doccount | get_termfreq () const |
Returns number of docs indexed by this term. More... | |
Xapian::docid | get_docid () const |
Returns the current docid. More... | |
Xapian::termcount | get_doclength () const |
Returns the length of current document. More... | |
Xapian::termcount | get_unique_terms () const |
Return the number of unique terms in the current document. More... | |
Xapian::termcount | get_wdf () const |
Returns the Within Document Frequency of the term in the current document. More... | |
PositionList * | read_position_list () |
Get the list of positions of the term in the current document. More... | |
PositionList * | open_position_list () const |
Get the list of positions of the term in the current document. More... | |
PostList * | next (double w_min) |
Move to the next document. More... | |
PostList * | skip_to (Xapian::docid desired_did, double w_min) |
Skip to next document with docid >= docid. More... | |
bool | at_end () const |
Return true if and only if we're off the end of the list. More... | |
Xapian::termcount | get_wdf_upper_bound () const |
std::string | get_description () const |
Get a description of the document. More... | |
Public Member Functions inherited from LeafPostList | |
~LeafPostList () | |
void | set_termweight (const Xapian::Weight *weight_) |
Set the weighting scheme to use during matching. More... | |
double | resolve_lazy_termweight (Xapian::Weight *weight_, Xapian::Weight::Internal *stats, Xapian::termcount qlen, Xapian::termcount wqf, double factor) |
Xapian::doccount | get_termfreq_min () const |
Get a lower bound on the number of documents indexed by this term. More... | |
Xapian::doccount | get_termfreq_max () const |
Get an upper bound on the number of documents indexed by this term. More... | |
Xapian::doccount | get_termfreq_est () const |
Get an estimate of the number of documents indexed by this term. More... | |
double | get_maxweight () const |
Return an upper bound on what get_weight() can return. More... | |
double | get_weight () const |
Return the weight contribution for the current position. More... | |
double | recalc_maxweight () |
Recalculate the upper bound on what get_weight() can return. More... | |
TermFreqs | get_termfreq_est_using_stats (const Xapian::Weight::Internal &stats) const |
Get an estimate for the termfreq and reltermfreq, given the stats. More... | |
Xapian::termcount | count_matching_subqs () const |
Count the number of leaf subqueries which match at the current position. More... | |
void | gather_position_lists (OrPositionList *orposlist) |
Gather PositionList* objects for a subtree. More... | |
virtual LeafPostList * | open_nearby_postlist (const std::string &term_) const |
Open another postlist from the same database. More... | |
void | set_term (const std::string &term_) |
Set the term name. More... | |
Public Member Functions inherited from Xapian::PostingIterator::Internal | |
virtual | ~Internal () |
We have virtual methods and want to be able to delete derived classes using a pointer to the base class, so we need a virtual destructor. More... | |
virtual const std::string * | get_sort_key () const |
virtual const std::string * | get_collapse_key () const |
If the collapse key is already known, return it. More... | |
virtual Internal * | check (Xapian::docid did, double w_min, bool &valid) |
Check if the specified docid occurs in this postlist. More... | |
Internal * | next () |
Advance the current position to the next document in the postlist. More... | |
Internal * | skip_to (Xapian::docid did) |
Skip forward to the specified docid. More... | |
Public Member Functions inherited from Xapian::Internal::intrusive_base | |
intrusive_base () | |
Construct with no references. More... | |
Private Member Functions | |
void | operator= (const ChertAllDocsModifiedPostList &) |
Don't allow assignment. More... | |
ChertAllDocsModifiedPostList (const ChertAllDocsModifiedPostList &) | |
Don't allow copying. More... | |
void | skip_deletes (double w_min) |
Skip over deleted documents after a next() or skip_to(). More... | |
Private Attributes | |
map< Xapian::docid, Xapian::termcount > | doclens |
Modifications to apply to the ChertAllDocsPostList. More... | |
map< Xapian::docid, Xapian::termcount >::const_iterator | doclens_it |
Current position in the doclens list. More... | |
Additional Inherited Members | |
Static Public Member Functions inherited from ChertPostList | |
static void | read_number_of_entries (const char **posptr, const char *end, Xapian::doccount *number_of_entries_ptr, Xapian::termcount *collection_freq_ptr) |
Read the number of entries and the collection frequency. More... | |
Public Attributes inherited from Xapian::Internal::intrusive_base | |
unsigned | _refs |
Reference count. More... | |
Protected Member Functions inherited from LeafPostList | |
LeafPostList (const std::string &term_) | |
Only constructable as a base class for derived classes. More... | |
Protected Member Functions inherited from Xapian::PostingIterator::Internal | |
Internal () | |
Only constructable as a base class for derived classes. More... | |
Protected Attributes inherited from ChertPostList | |
Xapian::Internal::intrusive_ptr< const ChertDatabase > | this_db |
The database we are searching. More... | |
ChertPositionList | positionlist |
The position list object for this posting list. More... | |
bool | have_started |
Whether we've started reading the list yet. More... | |
Xapian::termcount | wdf_upper_bound |
Upper bound on wdf for this postlist. More... | |
Protected Attributes inherited from LeafPostList | |
const Xapian::Weight * | weight |
bool | need_doclength |
bool | need_unique_terms |
std::string | term |
The term name for this postlist (empty for an alldocs postlist). More... | |
Definition at line 29 of file chert_alldocsmodifiedpostlist.h.
|
private |
Don't allow copying.
ChertAllDocsModifiedPostList::ChertAllDocsModifiedPostList | ( | Xapian::Internal::intrusive_ptr< const ChertDatabase > | db_, |
Xapian::doccount | doccount_, | ||
const map< Xapian::docid, Xapian::termcount > & | doclens_ | ||
) |
Definition at line 32 of file chert_alldocsmodifiedpostlist.cc.
References Xapian::Internal::intrusive_ptr< T >::get(), and LOGCALL_CTOR.
|
virtual |
Return true if the current position is past the last entry in this list.
Implements Xapian::PostingIterator::Internal.
Definition at line 131 of file chert_alldocsmodifiedpostlist.cc.
References ChertPostList::at_end(), doclens, doclens_it, LOGCALL, and RETURN.
|
virtual |
Return a string description of this object.
Implements Xapian::PostingIterator::Internal.
Definition at line 138 of file chert_alldocsmodifiedpostlist.cc.
References get_docid(), and Xapian::Internal::str().
|
virtual |
Return the current docid.
Implements Xapian::PostingIterator::Internal.
Definition at line 59 of file chert_alldocsmodifiedpostlist.cc.
References ChertPostList::at_end(), doclens, doclens_it, ChertPostList::get_docid(), LOGCALL, and RETURN.
Referenced by get_description(), and get_unique_terms().
|
virtual |
Return the length of current document.
Implements Xapian::PostingIterator::Internal.
Definition at line 68 of file chert_alldocsmodifiedpostlist.cc.
References ChertPostList::at_end(), doclens, doclens_it, ChertPostList::get_docid(), ChertAllDocsPostList::get_doclength(), LOGCALL, and RETURN.
|
virtual |
Return the number of unique terms in the current document.
Implements Xapian::PostingIterator::Internal.
Definition at line 82 of file chert_alldocsmodifiedpostlist.cc.
References Assert, Xapian::Internal::intrusive_ptr< T >::get(), get_docid(), ChertDatabase::get_unique_terms(), LOGCALL, RETURN, and ChertPostList::this_db.
|
virtual |
Advance the current position to the next document in the postlist.
The list starts before the first entry in the list, so next(), skip_to() or check() must be called before any methods which need the context of the current position.
w_min | The minimum weight contribution that is needed (this is just a hint which PostList subclasses may ignore). |
Implements Xapian::PostingIterator::Internal.
Definition at line 90 of file chert_alldocsmodifiedpostlist.cc.
References ChertPostList::at_end(), doclens, doclens_it, ChertPostList::get_docid(), ChertPostList::have_started, LOGCALL, Xapian::PostingIterator::Internal::next(), RETURN, and skip_deletes().
|
private |
Don't allow assignment.
|
private |
Skip over deleted documents after a next() or skip_to().
Definition at line 43 of file chert_alldocsmodifiedpostlist.cc.
References ChertPostList::at_end(), doclens, doclens_it, ChertPostList::get_docid(), LOGCALL_VOID, and Xapian::PostingIterator::Internal::next().
|
virtual |
Skip forward to the specified docid.
If the specified docid isn't in the list, position ourselves on the first document after it (or at_end() if no greater docids are present).
w_min | The minimum weight contribution that is needed (this is just a hint which PostList subclasses may ignore). |
Implements Xapian::PostingIterator::Internal.
Definition at line 116 of file chert_alldocsmodifiedpostlist.cc.
References ChertPostList::at_end(), doclens, doclens_it, LOGCALL, RETURN, skip_deletes(), and ChertPostList::skip_to().
|
private |
Modifications to apply to the ChertAllDocsPostList.
Definition at line 31 of file chert_alldocsmodifiedpostlist.h.
Referenced by at_end(), get_docid(), get_doclength(), next(), skip_deletes(), and skip_to().
|
private |
Current position in the doclens list.
Definition at line 34 of file chert_alldocsmodifiedpostlist.h.
Referenced by at_end(), get_docid(), get_doclength(), next(), skip_deletes(), and skip_to().