OrPositionList Class Reference

#include <orpositionlist.h>

Inheritance diagram for OrPositionList:

Collaboration diagram for OrPositionList:

Public Member Functions
	OrPositionList ()
PositionList *	gather (PostList *pl)
void	add_poslist (PositionList *poslist)
Xapian::termcount	get_approx_size () const
	Return approximate size of this positionlist. More...
Xapian::termpos	get_position () const
	Return the current position. More...
bool	next ()
	Advance to the next entry in the positionlist. More...
bool	skip_to (Xapian::termpos termpos)
	Skip forward to the specified position. More...
Public Member Functions inherited from Xapian::PositionIterator::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...
Public Member Functions inherited from Xapian::Internal::intrusive_base
	intrusive_base ()
	Construct with no references. More...

Private Attributes
std::vector< PositionList * >	pls
	The PositionList sub-objects. More...
std::vector< Xapian::termpos >	current
	Current positions of the subobjects. More...
Xapian::termpos	current_pos
	Current position of this object. More...

Additional Inherited Members
Public Attributes inherited from Xapian::Internal::intrusive_base
unsigned	_refs
	Reference count. More...
Protected Member Functions inherited from Xapian::PositionIterator::Internal
	Internal ()
	Only constructable as a base class for derived classes. More...

Detailed Description

Definition at line 31 of file orpositionlist.h.

Constructor & Destructor Documentation

OrPositionList()

OrPositionList::OrPositionList ( )

inline

Definition at line 45 of file orpositionlist.h.

Member Function Documentation

add_poslist()

void OrPositionList::add_poslist ( PositionList *  poslist )

inline

Definition at line 56 of file orpositionlist.h.

References pls.

Referenced by LeafPostList::gather_position_lists().

gather()

PositionList* OrPositionList::gather ( PostList *  pl )

inline

Definition at line 47 of file orpositionlist.h.

References current, Xapian::PostingIterator::Internal::gather_position_lists(), and pls.

Referenced by OrPosPostList::read_position_list().

get_approx_size()

Xapian::termcount OrPositionList::get_approx_size ( ) const

virtual

Return approximate size of this positionlist.

Implements Xapian::PositionIterator::Internal.

Definition at line 30 of file orpositionlist.cc.

References LOGCALL, and RETURN.

get_position()

Xapian::termpos OrPositionList::get_position ( ) const

virtual

Return the current position.

Implements Xapian::PositionIterator::Internal.

Definition at line 41 of file orpositionlist.cc.

References LOGCALL, and RETURN.

next()

bool OrPositionList::next ( )

virtual

Advance to the next entry in the positionlist.

The list starts before the first entry, so next() or skip_to() must be called before get_position().

Returns

true if we're on a valid entry; false if we've reached the end of the list.

Implements Xapian::PositionIterator::Internal.

Definition at line 53 of file orpositionlist.cc.

References Xapian::PositionIterator::Internal::get_position(), LOGCALL, Xapian::PositionIterator::Internal::next(), and RETURN.

skip_to()

bool OrPositionList::skip_to ( Xapian::termpos  termpos )

virtual

Skip forward to the specified position.

If the specified position isn't in the list, position ourselves on the first entry after it.

Returns

true if we're on a valid entry; false if we've reached the end of the list.

Implements Xapian::PositionIterator::Internal.

Definition at line 85 of file orpositionlist.cc.

References Xapian::PositionIterator::Internal::get_position(), LOGCALL, RETURN, and Xapian::PositionIterator::Internal::skip_to().

Member Data Documentation

current

std::vector<Xapian::termpos> OrPositionList::current

private

Current positions of the subobjects.

This will be empty when this position list hasn't yet started.

Definition at line 39 of file orpositionlist.h.

Referenced by gather().

current_pos

Xapian::termpos OrPositionList::current_pos

private

Current position of this object.

Definition at line 42 of file orpositionlist.h.

pls

std::vector<PositionList*> OrPositionList::pls

private

The PositionList sub-objects.

Definition at line 33 of file orpositionlist.h.

Referenced by add_poslist(), and gather().

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The documentation for this class was generated from the following files:

• matcher/orpositionlist.h
• matcher/orpositionlist.cc