Class for merging AllTermsList objects from subdatabases. More...
#include <multi_alltermslist.h>
Inheritance diagram for MultiAllTermsList:
Collaboration diagram for MultiAllTermsList:
Public Member Functions | |
| MultiAllTermsList (const std::vector< Xapian::Internal::intrusive_ptr< Xapian::Database::Internal > > &dbs, const std::string &prefix) | |
| Constructor. More... | |
| ~MultiAllTermsList () | |
| Destructor. More... | |
| std::string | get_termname () const |
| Return the termname at the current position. 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 (const std::string &term) |
| Skip forward to the specified term. More... | |
| bool | at_end () const |
| Return true if the current position is past the last term in this list. More... | |
| Public Member Functions inherited from AllTermsList | |
| virtual Xapian::termcount | get_approx_size () const |
| Return approximate size of this termlist. More... | |
| 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 Xapian::PositionIterator | 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... | |
| virtual const std::vector< Xapian::termpos > * | get_vector_termpos () const |
| Get pointer to vector<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 | |
| std::string | current_term |
| Current termname (or empty if we haven't started yet). More... | |
| std::vector< TermList * > | termlists |
| Vector of 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... | |
Detailed Description
Class for merging AllTermsList objects from subdatabases.
Definition at line 32 of file multi_alltermslist.h.
Constructor & Destructor Documentation
◆ MultiAllTermsList() [1/2]
|
private |
Don't allow copying.
◆ MultiAllTermsList() [2/2]
| MultiAllTermsList::MultiAllTermsList | ( | const std::vector< Xapian::Internal::intrusive_ptr< Xapian::Database::Internal > > & | dbs, |
| const std::string & | prefix | ||
| ) |
◆ ~MultiAllTermsList()
| MultiAllTermsList::~MultiAllTermsList | ( | ) |
Destructor.
Definition at line 63 of file multi_alltermslist.cc.
Member Function Documentation
◆ at_end()
|
virtual |
Return true if the current position is past the last term in this list.
Implements AllTermsList.
Definition at line 166 of file multi_alltermslist.cc.
◆ get_termfreq()
|
virtual |
Return the term frequency for the term at the current position.
Implements AllTermsList.
Definition at line 75 of file multi_alltermslist.cc.
◆ get_termname()
|
virtual |
Return the termname at the current position.
Implements AllTermsList.
Definition at line 69 of file multi_alltermslist.cc.
◆ next()
|
virtual |
Advance the current position to the next term in the termlist.
Implements AllTermsList.
Definition at line 88 of file multi_alltermslist.cc.
References Xapian::TermIterator::Internal::at_end(), Xapian::TermIterator::Internal::get_termname(), and Xapian::TermIterator::Internal::next().
◆ 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 136 of file multi_alltermslist.cc.
References Xapian::TermIterator::Internal::get_termname(), and Xapian::TermIterator::Internal::skip_to().
Member Data Documentation
◆ current_term
|
private |
Current termname (or empty if we haven't started yet).
Definition at line 40 of file multi_alltermslist.h.
◆ termlists
|
private |
Vector of sub-termlists which we use as a heap.
Definition at line 43 of file multi_alltermslist.h.
The documentation for this class was generated from the following files:
- backends/multi/multi_alltermslist.h
- backends/multi/multi_alltermslist.cc