C# Class Lucene.Net.Util.OpenBitSetIterator

An iterator to iterate over set bits in an OpenBitSet. this is faster than nextSetBit() for iterating over the complete set of bits, especially when the density of the bits set is high.

Inheritance: Lucene.Net.Search.DocIdSetIterator

Afficher le fichier Open project: synhershko/lucene.net Class Usage Examples

Méthodes publiques

Méthode	Description
Advance ( int target ) : int
DocID ( ) : int
NextDoc ( ) : int	alternate shift implementations // 32 bit shifts, but a long shift needed at the end private void shift2() { int y = (int)word; if (y==0) {wordShift +=32; y = (int)(word >>>32); } if ((y & 0x0000FFFF) == 0) { wordShift +=16; y>>>=16; } if ((y & 0x000000FF) == 0) { wordShift +=8; y>>>=8; } indexArray = bitlist[y & 0xff]; word >>>= (wordShift +1); } private void shift3() { int lower = (int)word; int lowByte = lower & 0xff; if (lowByte != 0) { indexArray=bitlist[lowByte]; return; } shift(); } **
OpenBitSetIterator ( OpenBitSet obs ) : System
OpenBitSetIterator ( long bits, int numWords ) : System

Private Methods

Méthode	Description
Shift ( ) : void

Method Details

Advance() public méthode

public Advance ( int target ) : int
target	int
Résultat	int

DocID() public méthode

public DocID ( ) : int
Résultat	int

NextDoc() public méthode

** alternate shift implementations // 32 bit shifts, but a long shift needed at the end private void shift2() { int y = (int)word; if (y==0) {wordShift +=32; y = (int)(word >>>32); } if ((y & 0x0000FFFF) == 0) { wordShift +=16; y>>>=16; } if ((y & 0x000000FF) == 0) { wordShift +=8; y>>>=8; } indexArray = bitlist[y & 0xff]; word >>>= (wordShift +1); } private void shift3() { int lower = (int)word; int lowByte = lower & 0xff; if (lowByte != 0) { indexArray=bitlist[lowByte]; return; } shift(); } ****

public NextDoc ( ) : int
Résultat	int

OpenBitSetIterator() public méthode

public OpenBitSetIterator ( OpenBitSet obs ) : System
obs	OpenBitSet
Résultat	System

OpenBitSetIterator() public méthode

public OpenBitSetIterator ( long bits, int numWords ) : System
bits	long
numWords	int
Résultat	System