xapian-core
1.4.26
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A PostList iterating all docids when they form a contiguous range. More...
#include <contiguousalldocspostlist.h>
Public Member Functions | |
ContiguousAllDocsPostList (Xapian::Internal::intrusive_ptr< const Xapian::Database::Internal > db_, Xapian::doccount doccount_) | |
Constructor. More... | |
Xapian::doccount | get_termfreq () const |
Return the term frequency. More... | |
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. More... | |
Xapian::termcount | get_wdf () const |
Always return 1 (wdf isn't totally meaningful for us). More... | |
PositionList * | read_position_list () |
Throws InvalidOperationError. More... | |
PositionList * | open_position_list () const |
Throws InvalidOperationError. More... | |
PostList * | next (double w_min) |
Advance to the next document. More... | |
PostList * | skip_to (Xapian::docid target, double w_min) |
Skip ahead to next document with docid >= target. 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 |
Always return 1 (wdf isn't totally meaningful for us). More... | |
std::string | get_description () const |
Return a string description of this object. 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 ContiguousAllDocsPostList &) |
Don't allow assignment. More... | |
ContiguousAllDocsPostList (const ContiguousAllDocsPostList &) | |
Don't allow copying. More... | |
Private Attributes | |
Xapian::Internal::intrusive_ptr< const Xapian::Database::Internal > | db |
The database we're iterating over. More... | |
Xapian::docid | did |
The current document id. More... | |
Xapian::doccount | doccount |
The number of documents in the database. More... | |
Additional Inherited Members | |
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 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... | |
A PostList iterating all docids when they form a contiguous range.
Definition at line 31 of file contiguousalldocspostlist.h.
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private |
Don't allow copying.
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inline |
Constructor.
Definition at line 49 of file contiguousalldocspostlist.h.
References at_end(), get_description(), get_docid(), get_doclength(), get_termfreq(), get_unique_terms(), get_wdf(), get_wdf_upper_bound(), Xapian::PostingIterator::Internal::next(), open_position_list(), read_position_list(), and skip_to().
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Return true if and only if we're off the end of the list.
Implements Xapian::PostingIterator::Internal.
Definition at line 112 of file contiguousalldocspostlist.cc.
Referenced by ContiguousAllDocsPostList().
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Return a string description of this object.
Implements Xapian::PostingIterator::Internal.
Definition at line 124 of file contiguousalldocspostlist.cc.
References Xapian::Internal::str().
Referenced by ContiguousAllDocsPostList().
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Return the current docid.
Implements Xapian::PostingIterator::Internal.
Definition at line 41 of file contiguousalldocspostlist.cc.
References Assert.
Referenced by ContiguousAllDocsPostList().
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Return the length of current document.
Implements Xapian::PostingIterator::Internal.
Definition at line 49 of file contiguousalldocspostlist.cc.
References Assert.
Referenced by ContiguousAllDocsPostList().
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Return the term frequency.
For an all documents postlist, this is the number of documents in the database.
Implements LeafPostList.
Definition at line 35 of file contiguousalldocspostlist.cc.
Referenced by ContiguousAllDocsPostList().
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Return the number of unique terms.
Implements Xapian::PostingIterator::Internal.
Definition at line 57 of file contiguousalldocspostlist.cc.
References Assert.
Referenced by ContiguousAllDocsPostList().
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Always return 1 (wdf isn't totally meaningful for us).
Reimplemented from Xapian::PostingIterator::Internal.
Definition at line 65 of file contiguousalldocspostlist.cc.
References Assert.
Referenced by ContiguousAllDocsPostList().
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Always return 1 (wdf isn't totally meaningful for us).
Implements LeafPostList.
Definition at line 118 of file contiguousalldocspostlist.cc.
Referenced by ContiguousAllDocsPostList().
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Advance to the next document.
Implements Xapian::PostingIterator::Internal.
Definition at line 86 of file contiguousalldocspostlist.cc.
References Assert.
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Throws InvalidOperationError.
Reimplemented from Xapian::PostingIterator::Internal.
Definition at line 80 of file contiguousalldocspostlist.cc.
Referenced by ContiguousAllDocsPostList(), and read_position_list().
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private |
Don't allow assignment.
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virtual |
Throws InvalidOperationError.
Reimplemented from Xapian::PostingIterator::Internal.
Definition at line 73 of file contiguousalldocspostlist.cc.
References open_position_list().
Referenced by ContiguousAllDocsPostList().
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Skip ahead to next document with docid >= target.
Implements Xapian::PostingIterator::Internal.
Definition at line 98 of file contiguousalldocspostlist.cc.
References Assert.
Referenced by ContiguousAllDocsPostList().
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The database we're iterating over.
Definition at line 39 of file contiguousalldocspostlist.h.
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The current document id.
Definition at line 42 of file contiguousalldocspostlist.h.
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The number of documents in the database.
Definition at line 45 of file contiguousalldocspostlist.h.