JavaEWAH 1.2.3 · com.googlecode.javaewah32.IteratorUtil32

Access	Constructor and Description
private	IteratorUtil32() Private constructor to prevent instantiation

Method Summary

Modifier and Type	Method and Description
public static int	Returns: the cardinality (number of set bits) corresponding to the iterator cardinality(final IteratingRLW32 iterator we wish to iterate over i)
public static void	materialize(final IteratingRLW32 iterator we wish to materialize i, final BitmapStorage32 where we write c) Turn an iterator into a bitmap
public static long	Returns: how many words were actually materialized materialize(final IteratingRLW32 iterator we wish to materialize i, final BitmapStorage32 where we write c, int maximum number of words to materialize max) Turn an iterator into a bitmap
public static EWAHCompressedBitmap32	Returns: materialized version of the iterator materialize(final IteratingRLW32 iterator we wish to materialize i) Turn an iterator into a bitmap This can be used to effectively clone a bitmap in the following manner: `EWAHCompressedBitmap32 n = IteratorUtil32.materialize(bitmap.getIteratingRLW())); n.setSizeInBitsWithinLastWord(bitmap.sizeInBits());`
public static IteratingRLW32[]	Returns: an array of iterators corresponding to the array of bitmaps toIterators(final EWAHCompressedBitmap32... set of bitmaps we wish to iterate over x)
public static IntIterator	Returns: an iterator over the set bits corresponding to the iterator toSetBitsIntIterator(final IteratingRLW32 iterator we wish to iterate over i)
public static Iterator<Integer>	Returns: an iterator over the set bits corresponding to the iterator toSetBitsIterator(final IteratingRLW32 iterator we wish to iterate over i)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

IteratorUtil32	back to summary
private IteratorUtil32() Private constructor to prevent instantiation

Method Detail

cardinality	back to summary
public static int cardinality(final IteratingRLW32 i) Parameters i:IteratingRLW32 iterator we wish to iterate over Returns:int the cardinality (number of set bits) corresponding to the iterator

materialize	back to summary
public static void materialize(final IteratingRLW32 i, final BitmapStorage32 c) Turn an iterator into a bitmap Parameters i:IteratingRLW32 iterator we wish to materialize c:BitmapStorage32 where we write

materialize

back to summary

public static void materialize(final IteratingRLW32 i, final BitmapStorage32 c)

Turn an iterator into a bitmap

Parameters

i:IteratingRLW32: iterator we wish to materialize
c:BitmapStorage32: where we write

materialize	back to summary
public static long materialize(final IteratingRLW32 i, final BitmapStorage32 c, int max) Turn an iterator into a bitmap Parameters i:IteratingRLW32 iterator we wish to materialize c:BitmapStorage32 where we write max:int maximum number of words to materialize Returns:long how many words were actually materialized

materialize

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public static long materialize(final IteratingRLW32 i, final BitmapStorage32 c, int max)

Turn an iterator into a bitmap

Parameters

i:IteratingRLW32: iterator we wish to materialize
c:BitmapStorage32: where we write
max:int: maximum number of words to materialize

Returns:long

how many words were actually materialized

materialize back to summary

materialize	back to summary
public static EWAHCompressedBitmap32 materialize(final IteratingRLW32 i) Turn an iterator into a bitmap This can be used to effectively clone a bitmap in the following manner: `EWAHCompressedBitmap32 n = IteratorUtil32.materialize(bitmap.getIteratingRLW())); n.setSizeInBitsWithinLastWord(bitmap.sizeInBits());` Parameters i:IteratingRLW32 iterator we wish to materialize Returns:EWAHCompressedBitmap32 materialized version of the iterator

public static EWAHCompressedBitmap32 materialize(final IteratingRLW32 i)

Turn an iterator into a bitmap This can be used to effectively clone a bitmap in the following manner: EWAHCompressedBitmap32 n = IteratorUtil32.materialize(bitmap.getIteratingRLW())); n.setSizeInBitsWithinLastWord(bitmap.sizeInBits());

Parameters

i:IteratingRLW32: iterator we wish to materialize

Returns:EWAHCompressedBitmap32

materialized version of the iterator

toIterators	back to summary
public static IteratingRLW32[] toIterators(final EWAHCompressedBitmap32... x) Parameters x:EWAHCompressedBitmap32[] set of bitmaps we wish to iterate over Returns:IteratingRLW32[] an array of iterators corresponding to the array of bitmaps

toSetBitsIntIterator	back to summary
public static IntIterator toSetBitsIntIterator(final IteratingRLW32 i) Parameters i:IteratingRLW32 iterator we wish to iterate over Returns:IntIterator an iterator over the set bits corresponding to the iterator

toSetBitsIterator	back to summary
public static Iterator<Integer> toSetBitsIterator(final IteratingRLW32 i) Parameters i:IteratingRLW32 iterator we wish to iterate over Returns:Iterator<Integer> an iterator over the set bits corresponding to the iterator

public final Class IteratorUtil32

Constructor Summary

Method Summary

Constructor Detail

Method Detail