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    xapian-core
    1.4.29
    
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A PostList iterating all docids when they form a contiguous range. More...
#include <contiguousalldocspostlist.h>
 Inheritance diagram for ContiguousAllDocsPostList:
 Collaboration diagram for ContiguousAllDocsPostList: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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Don't allow copying.
      
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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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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.