it.unimi.dsi.fastutil.objects.Reference2ReferenceMaps.singleton java code examples

public Reference2ReferenceMap<Index, IntervalIterator> intervalIterators() {
  return Reference2ReferenceMaps.singleton( soleIndex, IntervalIterators.TRUE );
}

public Reference2ReferenceMap<Index, IntervalIterator> intervalIterators() {
  return Reference2ReferenceMaps.singleton( soleIndex, IntervalIterators.TRUE );
}

protected AbstractQuasiSuccinctIndexIterator( final QuasiSuccinctIndexReader indexReader ) {
  this.indexReader = indexReader;
  index = indexReader.index;
  keyIndex = index.keyIndex;
  hasPositions = index.hasPositions;
  hasCounts = index.hasCounts;
  numberOfDocuments = index.numberOfDocuments;
  pointersList = indexReader.pointersList;
  countsList = indexReader.countsList;
  positionsList = indexReader.positionsList;
  intervalIterator = hasPositions ? new IndexIntervalIterator( this ) : IntervalIterators.FALSE; 
  singletonIntervalIterator = Reference2ReferenceMaps.singleton( keyIndex, hasPositions ? intervalIterator : IntervalIterators.FALSE );
  currentTerm = frequency = -1;
}

protected TrueDocumentIterator( final Index index ) {
  indices = ReferenceSets.singleton( soleIndex = index );
  intervalIterators = Reference2ReferenceMaps.singleton( soleIndex, IntervalIterators.TRUE );
}

protected TrueDocumentIterator( final Index index ) {
  indices = ReferenceSets.singleton( soleIndex = index );
  intervalIterators = Reference2ReferenceMaps.singleton( soleIndex, IntervalIterators.TRUE );
}

protected AbstractQuasiSuccinctIndexIterator( final QuasiSuccinctIndexReader indexReader ) {
  this.indexReader = indexReader;
  index = indexReader.index;
  keyIndex = index.keyIndex;
  hasPositions = index.hasPositions;
  hasCounts = index.hasCounts;
  numberOfDocuments = index.numberOfDocuments;
  pointersList = indexReader.pointersList;
  countsList = indexReader.countsList;
  positionsList = indexReader.positionsList;
  intervalIterator = hasPositions ? new IndexIntervalIterator( this ) : null;
  singletonIntervalIterator = hasPositions ? Reference2ReferenceMaps.singleton( keyIndex, (IntervalIterator)intervalIterator ) : null;
  currentTerm = frequency = -1;
}

public BitStreamIndexReaderIndexIterator( final GammaDeltaGammaDeltaBitStreamIndexReader parent, final InputBitStream ibs ) {
 this.parent = parent;
 this.ibs = ibs;
 index = parent.index;
 keyIndex = index.keyIndex;
 pointerCoding = index.pointerCoding;
 if ( index.hasPayloads ) throw new IllegalStateException();
 if ( ! index.hasCounts ) throw new IllegalStateException();
 countCoding = index.countCoding;
 if ( ! index.hasPositions ) throw new IllegalStateException();
 positionCoding = index.positionCoding;
 positionCache = new int[ POSITION_CACHE_INITIAL_SIZE ];
 intervalIterator = index.hasPositions ? new it.unimi.di.big.mg4j.index.IndexIntervalIterator( this ) : null;
 singletonIntervalIterator = index.hasPositions ? Reference2ReferenceMaps.singleton( keyIndex, (IntervalIterator)intervalIterator ) : null;
}

public BitStreamIndexReaderIndexIterator( final GammaDeltaGammaDeltaBitStreamIndexReader parent, final InputBitStream ibs ) {
 this.parent = parent;
 this.ibs = ibs;
 index = parent.index;
 keyIndex = index.keyIndex;
 pointerCoding = index.pointerCoding;
 if ( index.hasPayloads ) throw new IllegalStateException();
 if ( ! index.hasCounts ) throw new IllegalStateException();
 countCoding = index.countCoding;
 if ( ! index.hasPositions ) throw new IllegalStateException();
 positionCoding = index.positionCoding;
 positionCache = new int[ POSITION_CACHE_INITIAL_SIZE ];
 intervalIterator = index.hasPositions ? new it.unimi.di.mg4j.index.IndexIntervalIterator( this ) : null;
 singletonIntervalIterator = index.hasPositions ? Reference2ReferenceMaps.singleton( keyIndex, (IntervalIterator)intervalIterator ) : null;
}
/** Positions the index on the inverted list of a given term.

singletonIntervalIterator = index.hasPositions ? Reference2ReferenceMaps.singleton( keyIndex, (IntervalIterator)intervalIterator ) : null;

positionCache = new int[ POSITION_CACHE_INITIAL_SIZE ];
intervalIterator = index.hasPositions ? new it.unimi.di.mg4j.index.IndexIntervalIterator( this ) : null;
singletonIntervalIterator = index.hasPositions ? Reference2ReferenceMaps.singleton( keyIndex, (IntervalIterator)intervalIterator ) : null;
if ( ( index.quantum == -1 ) != ( index.height == -1 ) ) throw new IllegalArgumentException();
height = index.height;

public BitStreamHPIndexReaderIndexIterator( final BitStreamHPIndexReader parent, final InputBitStream ibs, final InputBitStream positions ) {
 this.parent = parent;
 this.ibs = ibs;
 this.positions = positions;
 index = parent.index;
 keyIndex = index.keyIndex;
 pointerCoding = index.pointerCoding;
 countCoding = index.countCoding;
 positionCoding = index.positionCoding;
 intervalIterator = new IndexIntervalIterator();
 singletonIntervalIterator = Reference2ReferenceMaps.singleton( keyIndex, (IntervalIterator)intervalIterator );
 height = index.height;
 if ( ! ( variableQuanta = index.quantum == 0 ) ) {
 quantum = index.quantum;
 quantumModuloMask = quantum - 1;
 quantumDivisionShift = Fast.mostSignificantBit( quantum );
 w = ( 1L << height ) * quantum;
 wModuloMask = w - 1;
 wDivisionShift = Fast.mostSignificantBit( w );
 }
 bitSkip = new long[ height + 1 ];
 positionsBitSkip = new long[ height + 1 ];
 pointerSkip = new int[ height + 1 ];
 towerTopB = new int[ height + 1 ];
 towerTopLog2B = new int[ height + 1 ];
 towerLowerB = new int[ height + 1 ];
 towerLowerLog2B = new int[ height + 1 ];
 pointerPrediction = new int[ height + 1 ];
}

public BitStreamHPIndexReaderIndexIterator( final GammaDeltaGammaDeltaBitStreamHPIndexReader parent, final InputBitStream ibs, final InputBitStream positions ) {
 this.parent = parent;
 this.ibs = ibs;
 this.positions = positions;
 index = parent.index;
 keyIndex = index.keyIndex;
 pointerCoding = index.pointerCoding;
 countCoding = index.countCoding;
 positionCoding = index.positionCoding;
 intervalIterator = new it.unimi.di.big.mg4j.index.IndexIntervalIterator( this );
 singletonIntervalIterator = Reference2ReferenceMaps.singleton( keyIndex, (IntervalIterator)intervalIterator );
 height = index.height;
 if ( ! ( variableQuanta = index.quantum == 0 ) ) {
 quantum = index.quantum;
 quantumModuloMask = quantum - 1;
 quantumDivisionShift = Fast.mostSignificantBit( quantum );
 w = ( 1L << height ) * quantum;
 wModuloMask = w - 1;
 wDivisionShift = Fast.mostSignificantBit( w );
 }
 bitSkip = new long[ height + 1 ];
 positionsBitSkip = new long[ height + 1 ];
 pointerSkip = new long[ height + 1 ];
 towerTopB = new int[ height + 1 ];
 towerTopLog2B = new int[ height + 1 ];
 towerLowerB = new int[ height + 1 ];
 towerLowerLog2B = new int[ height + 1 ];
 pointerPrediction = new long[ height + 1 ];
}

public BitStreamHPIndexReaderIndexIterator( final BitStreamHPIndexReader parent, final InputBitStream ibs, final InputBitStream positions ) {
 this.parent = parent;
 this.ibs = ibs;
 this.positions = positions;
 index = parent.index;
 keyIndex = index.keyIndex;
 pointerCoding = index.pointerCoding;
 countCoding = index.countCoding;
 positionCoding = index.positionCoding;
 intervalIterator = new it.unimi.di.big.mg4j.index.IndexIntervalIterator( this );
 singletonIntervalIterator = Reference2ReferenceMaps.singleton( keyIndex, (IntervalIterator)intervalIterator );
 height = index.height;
 if ( ! ( variableQuanta = index.quantum == 0 ) ) {
 quantum = index.quantum;
 quantumModuloMask = quantum - 1;
 quantumDivisionShift = Fast.mostSignificantBit( quantum );
 w = ( 1L << height ) * quantum;
 wModuloMask = w - 1;
 wDivisionShift = Fast.mostSignificantBit( w );
 }
 bitSkip = new long[ height + 1 ];
 positionsBitSkip = new long[ height + 1 ];
 pointerSkip = new long[ height + 1 ];
 towerTopB = new int[ height + 1 ];
 towerTopLog2B = new int[ height + 1 ];
 towerLowerB = new int[ height + 1 ];
 towerLowerLog2B = new int[ height + 1 ];
 pointerPrediction = new long[ height + 1 ];
}

public BitStreamHPIndexReaderIndexIterator( final BitStreamHPIndexReader parent, final InputBitStream ibs, final InputBitStream positions ) {
 this.parent = parent;
 this.ibs = ibs;
 this.positions = positions;
 index = parent.index;
 keyIndex = index.keyIndex;
 pointerCoding = index.pointerCoding;
 countCoding = index.countCoding;
 positionCoding = index.positionCoding;
 intervalIterator = new IndexIntervalIterator();
 singletonIntervalIterator = Reference2ReferenceMaps.singleton( keyIndex, (IntervalIterator)intervalIterator );
 height = index.height;
 if ( ! ( variableQuanta = index.quantum == 0 ) ) {
 quantum = index.quantum;
 quantumModuloMask = quantum - 1;
 quantumDivisionShift = Fast.mostSignificantBit( quantum );
 w = ( 1L << height ) * quantum;
 wModuloMask = w - 1;
 wDivisionShift = Fast.mostSignificantBit( w );
 }
 bitSkip = new long[ height + 1 ];
 positionsBitSkip = new long[ height + 1 ];
 pointerSkip = new long[ height + 1 ];
 towerTopB = new int[ height + 1 ];
 towerTopLog2B = new int[ height + 1 ];
 towerLowerB = new int[ height + 1 ];
 towerLowerLog2B = new int[ height + 1 ];
 pointerPrediction = new long[ height + 1 ];
}

public BitStreamHPIndexReaderIndexIterator( final BitStreamHPIndexReader parent, final InputBitStream ibs, final InputBitStream positions ) {
 this.parent = parent;
 this.ibs = ibs;
 this.positions = positions;
 index = parent.index;
 keyIndex = index.keyIndex;
 pointerCoding = index.pointerCoding;
 countCoding = index.countCoding;
 positionCoding = index.positionCoding;
 intervalIterator = new it.unimi.di.mg4j.index.IndexIntervalIterator( this );
 singletonIntervalIterator = Reference2ReferenceMaps.singleton( keyIndex, (IntervalIterator)intervalIterator );
 height = index.height;
 if ( ! ( variableQuanta = index.quantum == 0 ) ) {
 quantum = index.quantum;
 quantumModuloMask = quantum - 1;
 quantumDivisionShift = Fast.mostSignificantBit( quantum );
 w = ( 1L << height ) * quantum;
 wModuloMask = w - 1;
 wDivisionShift = Fast.mostSignificantBit( w );
 }
 bitSkip = new long[ height + 1 ];
 positionsBitSkip = new long[ height + 1 ];
 pointerSkip = new int[ height + 1 ];
 towerTopB = new int[ height + 1 ];
 towerTopLog2B = new int[ height + 1 ];
 towerLowerB = new int[ height + 1 ];
 towerLowerLog2B = new int[ height + 1 ];
 pointerPrediction = new int[ height + 1 ];
}
/** Debug variable, usually unused, that keeps track of the end of the positions stream for the current term (but not for term 0!). */

public BitStreamHPIndexReaderIndexIterator( final GammaDeltaGammaDeltaBitStreamHPIndexReader parent, final InputBitStream ibs, final InputBitStream positions ) {
 this.parent = parent;
 this.ibs = ibs;
 this.positions = positions;
 index = parent.index;
 keyIndex = index.keyIndex;
 pointerCoding = index.pointerCoding;
 countCoding = index.countCoding;
 positionCoding = index.positionCoding;
 intervalIterator = new it.unimi.di.mg4j.index.IndexIntervalIterator( this );
 singletonIntervalIterator = Reference2ReferenceMaps.singleton( keyIndex, (IntervalIterator)intervalIterator );
 height = index.height;
 if ( ! ( variableQuanta = index.quantum == 0 ) ) {
 quantum = index.quantum;
 quantumModuloMask = quantum - 1;
 quantumDivisionShift = Fast.mostSignificantBit( quantum );
 w = ( 1L << height ) * quantum;
 wModuloMask = w - 1;
 wDivisionShift = Fast.mostSignificantBit( w );
 }
 bitSkip = new long[ height + 1 ];
 positionsBitSkip = new long[ height + 1 ];
 pointerSkip = new int[ height + 1 ];
 towerTopB = new int[ height + 1 ];
 towerTopLog2B = new int[ height + 1 ];
 towerLowerB = new int[ height + 1 ];
 towerLowerLog2B = new int[ height + 1 ];
 pointerPrediction = new int[ height + 1 ];
}
/** Debug variable, usually unused, that keeps track of the end of the positions stream for the current term (but not for term 0!). */

if ( hasPositions ) positionCache = new int[ POSITION_CACHE_INITIAL_SIZE ];
intervalIterator = index.hasPositions ? new IndexIntervalIterator() : null;
singletonIntervalIterator = index.hasPositions ? Reference2ReferenceMaps.singleton( keyIndex, (IntervalIterator)intervalIterator ) : null;
if ( ( index.quantum == -1 ) != ( index.height == -1 ) ) throw new IllegalArgumentException();
height = index.height;

if ( hasPositions ) positionCache = new int[ POSITION_CACHE_INITIAL_SIZE ];
intervalIterator = index.hasPositions ? new it.unimi.di.mg4j.index.IndexIntervalIterator( this ) : null;
singletonIntervalIterator = index.hasPositions ? Reference2ReferenceMaps.singleton( keyIndex, (IntervalIterator)intervalIterator ) : null;
if ( ( index.quantum == -1 ) != ( index.height == -1 ) ) throw new IllegalArgumentException();
height = index.height;

if ( hasPositions ) positionCache = new int[ POSITION_CACHE_INITIAL_SIZE ];
intervalIterator = index.hasPositions ? new IndexIntervalIterator() : null;
singletonIntervalIterator = index.hasPositions ? Reference2ReferenceMaps.singleton( keyIndex, (IntervalIterator)intervalIterator ) : null;
if ( ( index.quantum == -1 ) != ( index.height == -1 ) ) throw new IllegalArgumentException();
height = index.height;

singletonIntervalIterator = index.hasPositions ? Reference2ReferenceMaps.singleton( keyIndex, (IntervalIterator)intervalIterator ) : null;

Javadoc

Returns a type-specific immutable map containing only the specified pair. The returned map is serializable and cloneable.

Note that albeit the returned map is immutable, its default return value may be changed.

Popular methods of Reference2ReferenceMaps

unmodifiable
Returns an unmodifiable type-specific map backed by the given type-specific map.
fastIterator
Returns an iterator that will be FastEntrySet, if possible, on the Map#entrySet() of the provided ma

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