FlintCompact::PostlistCursor Class Reference

Inheritance diagram for FlintCompact::PostlistCursor:

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Collaboration diagram for FlintCompact::PostlistCursor:

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List of all members.

Public Member Functions
	PostlistCursor (FlintTable *in, Xapian::docid offset_)
	~PostlistCursor ()
bool	next ()
	Advance to the next key.
Public Attributes
string	key
string	tag
Xapian::docid	firstdid
Xapian::termcount	tf
Xapian::termcount	cf
Private Attributes
Xapian::docid	offset

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Detailed Description

Definition at line 64 of file flint_compact.cc.

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Constructor & Destructor Documentation

FlintCompact::PostlistCursor::PostlistCursor	(	FlintTable *	in,
		Xapian::docid	offset_
	)			[inline]

Definition at line 72 of file flint_compact.cc.

References FlintCursor::find_entry(), and next().

FlintCompact::PostlistCursor::~PostlistCursor

(

)

[inline]

Definition at line 79 of file flint_compact.cc.

References FlintCursor::get_table().

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Member Function Documentation

bool FlintCompact::PostlistCursor::next

(

)

[inline]

Advance to the next key.

If cursor is unpositioned, the result is simply false.

If cursor is positioned, and points to the very last item in the Btree the cursor is made unpositioned, and the result is false. Otherwise the cursor is moved to the next item in the B-tree, and the result is true.

Effectively, FlintCursor::next() loses the position of BC when it drops off the end of the list of items. If this is awkward, one can always arrange for a key to be present which has a rightmost position in a set of keys,

Reimplemented from FlintCursor.

Definition at line 84 of file flint_compact.cc.

References cf, FlintCursor::current_key, FlintCursor::current_tag, F_unpack_string_preserving_sort(), F_unpack_uint(), F_unpack_uint_preserving_sort(), firstdid, FlintCompact::is_metainfo_key(), FlintCompact::is_user_metadata_key(), key, FlintCursor::next(), offset, FlintCursor::read_tag(), tag, and tf.

Referenced by FlintCompact::merge_postlists(), and PostlistCursor().

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Member Data Documentation

Xapian::termcount FlintCompact::PostlistCursor::cf

Definition at line 70 of file flint_compact.cc.

Referenced by FlintCompact::merge_postlists(), and next().

Xapian::docid FlintCompact::PostlistCursor::firstdid

Definition at line 69 of file flint_compact.cc.

Referenced by FlintCompact::merge_postlists(), next(), and FlintCompact::PostlistCursorGt::operator()().

string FlintCompact::PostlistCursor::key

Definition at line 68 of file flint_compact.cc.

Referenced by FlintCompact::merge_postlists(), next(), and FlintCompact::PostlistCursorGt::operator()().

Xapian::docid FlintCompact::PostlistCursor::offset [private]

Definition at line 65 of file flint_compact.cc.

Referenced by next().

string FlintCompact::PostlistCursor::tag

Definition at line 68 of file flint_compact.cc.

Referenced by FlintCompact::merge_postlists(), and next().

Xapian::termcount FlintCompact::PostlistCursor::tf

Definition at line 70 of file flint_compact.cc.

Referenced by FlintCompact::merge_postlists(), and next().

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

• backends/flint/flint_compact.cc