Class for merging AllTermsList objects from subdatabases. More...
#include <multi_alltermslist.h>
Inheritance diagram for MultiAllTermsList:
Collaboration diagram for MultiAllTermsList:
Public Member Functions | |
| MultiAllTermsList (size_t count_, TermList **termlists_) | |
| Constructor. More... | |
| ~MultiAllTermsList () | |
| Destructor. More... | |
| Xapian::termcount | get_approx_size () const |
| Return approximate size of this termlist. More... | |
| Xapian::doccount | get_termfreq () const |
| Return the term frequency for the term at the current position. More... | |
| TermList * | next () |
| Advance the current position to the next term in the termlist. More... | |
| TermList * | skip_to (std::string_view term) |
| Skip forward to the specified term. More... | |
| Public Member Functions inherited from AllTermsList | |
| virtual Xapian::termcount | get_wdf () const |
| Return the wdf for the term at the current position. More... | |
| virtual Xapian::termcount | positionlist_count () const |
| Return true if the current position is past the last term in this list. More... | |
| virtual PositionList * | positionlist_begin () const |
| Return a PositionIterator for the current position. More... | |
| Public Member Functions inherited from Xapian::TermIterator::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 void | accumulate_stats (Xapian::Internal::ExpandStats &stats) const |
| Collate weighting information for the current term. More... | |
| const std::string & | get_termname () const |
| Return the termname at the current position. More... | |
| virtual const Xapian::VecCOW< Xapian::termpos > * | get_vec_termpos () const |
| Get pointer to VecCOW<termpos> if that's the internal representation. More... | |
| Public Member Functions inherited from Xapian::Internal::intrusive_base | |
| intrusive_base () | |
| Construct with no references. More... | |
Private Member Functions | |
| void | operator= (const MultiAllTermsList &) |
| Don't allow assignment. More... | |
| MultiAllTermsList (const MultiAllTermsList &) | |
| Don't allow copying. More... | |
Private Attributes | |
| Xapian::doccount | current_termfreq |
| Current termfreq (or 0 if not yet calculated). More... | |
| size_t | count |
| Number of TermList* entries in termlists. More... | |
| TermList ** | termlists |
| Sub-termlists which we use as a heap. More... | |
Additional Inherited Members | |
| Public Attributes inherited from Xapian::TermIterator::Internal | |
| size_t | shard_index = 0 |
| Which shard of a multidatabase this is from. More... | |
| Public Attributes inherited from Xapian::Internal::intrusive_base | |
| unsigned | _refs |
| Reference count. More... | |
| Protected Member Functions inherited from AllTermsList | |
| AllTermsList () | |
| Only constructable as a base class for derived classes. More... | |
| Protected Member Functions inherited from Xapian::TermIterator::Internal | |
| Internal () | |
| Only constructable as a base class for derived classes. More... | |
| Protected Attributes inherited from Xapian::TermIterator::Internal | |
| std::string | current_term |
| The current term. More... | |
Detailed Description
Class for merging AllTermsList objects from subdatabases.
Definition at line 33 of file multi_alltermslist.h.
Constructor & Destructor Documentation
◆ MultiAllTermsList() [1/2]
|
private |
Don't allow copying.
◆ MultiAllTermsList() [2/2]
| MultiAllTermsList::MultiAllTermsList | ( | size_t | count_, |
| TermList ** | termlists_ | ||
| ) |
Constructor.
Definition at line 41 of file multi_alltermslist.cc.
◆ ~MultiAllTermsList()
| MultiAllTermsList::~MultiAllTermsList | ( | ) |
Member Function Documentation
◆ get_approx_size()
|
virtual |
Return approximate size of this termlist.
Implements AllTermsList.
Definition at line 54 of file multi_alltermslist.cc.
References Assert.
◆ get_termfreq()
|
virtual |
Return the term frequency for the term at the current position.
Implements AllTermsList.
Definition at line 62 of file multi_alltermslist.cc.
References count, Xapian::TermIterator::Internal::current_term, current_termfreq, Xapian::TermIterator::Internal::get_termfreq(), Xapian::TermIterator::Internal::get_termname(), Xapian::TermIterator::Internal::next(), Heap::pop(), Heap::replace(), and termlists.
◆ next()
|
virtual |
Advance the current position to the next term in the termlist.
Implements AllTermsList.
Definition at line 87 of file multi_alltermslist.cc.
References count, Xapian::TermIterator::Internal::current_term, current_termfreq, Xapian::TermIterator::Internal::get_termname(), Heap::make(), Xapian::TermIterator::Internal::next(), Heap::pop(), Heap::replace(), and termlists.
◆ operator=()
|
private |
Don't allow assignment.
◆ skip_to()
|
virtual |
Skip forward to the specified term.
If the specified term isn't in the list, position ourselves on the first term after term (or at_end() if no terms after term exist).
Implements AllTermsList.
Definition at line 140 of file multi_alltermslist.cc.
References count, Xapian::TermIterator::Internal::current_term, current_termfreq, Xapian::TermIterator::Internal::get_termname(), Heap::make(), term, and termlists.
Member Data Documentation
◆ count
|
mutableprivate |
Number of TermList* entries in termlists.
Definition at line 50 of file multi_alltermslist.h.
Referenced by get_termfreq(), next(), skip_to(), and ~MultiAllTermsList().
◆ current_termfreq
|
mutableprivate |
Current termfreq (or 0 if not yet calculated).
Definition at line 47 of file multi_alltermslist.h.
Referenced by get_termfreq(), next(), and skip_to().
◆ termlists
|
private |
Sub-termlists which we use as a heap.
Definition at line 53 of file multi_alltermslist.h.
Referenced by get_termfreq(), next(), skip_to(), and ~MultiAllTermsList().
The documentation for this class was generated from the following files:
- backends/multi/multi_alltermslist.h
- backends/multi/multi_alltermslist.cc