coins.flow
Class BitVectorIteratorImpl

java.lang.Object
  coins.flow.BitVectorIteratorImpl

All Implemented Interfaces:

BitVectorIterator

Direct Known Subclasses:

ExpVectorIteratorImpl, PointVectorIteratorImpl

public class BitVectorIteratorImpl

extends java.lang.Object

implements BitVectorIterator

BitVectorIteratorImpl class (##6)

Field Summary

protected int	fBitCount
protected int	fBitPosition
protected BitVector	fBitVector
protected int	fLongWordLength
protected int	fShiftMax
SubpFlow	fSubpFlow
protected long[]	fVectorWord

Constructor Summary

BitVectorIteratorImpl(SubpFlow pSubpFlow, BitVector pBitVector)

Method Summary

int	currentIndex() Returns the current index of bit position.
boolean	hasNext() hasNext Sees whether the BitVector associated with this BitVectorIterator has more elements.
int	next() Returns the next bit position of this BitVectorIterator.
int	nextIndex() nextIndex Returns the next index of bit position that has value 1.
void	resetBit() Resets the bit for the position returned by the last call to next() or nextIndex().
void	setBit() Sets the bit for the position returned by the last call to next() or nextIndex().

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

fLongWordLength

protected int fLongWordLength

fBitCount

protected int fBitCount

fShiftMax

protected int fShiftMax

fVectorWord

protected long[] fVectorWord

fBitVector

protected final BitVector fBitVector

fBitPosition

protected int fBitPosition

fSubpFlow

public final SubpFlow fSubpFlow

Constructor Detail

BitVectorIteratorImpl

public BitVectorIteratorImpl(SubpFlow pSubpFlow,
                             BitVector pBitVector)

Method Detail

hasNext

public boolean hasNext()

Description copied from interface: BitVectorIterator

hasNext Sees whether the BitVector associated with this BitVectorIterator has more elements. This method does not check the contents of the remaining bits.

Specified by:

hasNext in interface BitVectorIterator

Returns:

true if the vector has next element, false otherwise.

next

public int next()

Description copied from interface: BitVectorIterator

Returns the next bit position of this BitVectorIterator.

Specified by:

next in interface BitVectorIterator

nextIndex

public int nextIndex()

Description copied from interface: BitVectorIterator

nextIndex Returns the next index of bit position that has value 1. If the there is no non-zero bit remaining, then 0 is returned. Therefore, having hasNext returned true does not guarantee this method returns meaningful (nonzero) value.

Specified by:

nextIndex in interface BitVectorIterator

currentIndex

public int currentIndex()

Description copied from interface: BitVectorIterator

Returns the current index of bit position. This is what was last returned by next() or nextIndex().

Specified by:

currentIndex in interface BitVectorIterator

resetBit

public void resetBit()

Description copied from interface: BitVectorIterator

Resets the bit for the position returned by the last call to next() or nextIndex(). The behavior is undefined if there was no such call or the call returned 0.

Specified by:

resetBit in interface BitVectorIterator

setBit

public void setBit()

Description copied from interface: BitVectorIterator

Sets the bit for the position returned by the last call to next() or nextIndex(). The behavior is undefined if there was no such call or the call returned 0.

Specified by:

setBit in interface BitVectorIterator