JavaEWAH 1.2.3 · com.googlecode.javaewah.FastAggregation

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

Method Summary

Modifier and Type	Method and Description
public static EWAHCompressedBitmap	Returns: the or aggregate. bufferedand(final int buffer size used during the computation in 64-bit words (per input bitmap) bufSize, final EWAHCompressedBitmap... the source bitmaps bitmaps) Compute the and aggregate using a temporary uncompressed bitmap.
public static void	bufferedandWithContainer(final BitmapStorage where the aggregate is written container, final int buffer size used during the computation in 64-bit words (per input bitmap) bufSize, final EWAHCompressedBitmap... the source bitmaps bitmaps) Compute the and aggregate using a temporary uncompressed bitmap.
public static EWAHCompressedBitmap	Returns: the or aggregate. bufferedor(final int buffer size used during the computation in 64-bit words bufSize, final EWAHCompressedBitmap... the source bitmaps bitmaps) Compute the or aggregate using a temporary uncompressed bitmap.
public static void	bufferedorWithContainer(final BitmapStorage where the aggregate is written container, final int buffer size used during the computation in 64-bit words bufSize, final EWAHCompressedBitmap... the source bitmaps bitmaps) Compute the or aggregate using a temporary uncompressed bitmap.
public static EWAHCompressedBitmap	Returns: the xor aggregate. bufferedxor(final int buffer size used during the computation in 64-bit words bufSize, final EWAHCompressedBitmap... the source bitmaps bitmaps) Compute the xor aggregate using a temporary uncompressed bitmap.
public static void	bufferedxorWithContainer(final BitmapStorage where the aggregate is written container, final int buffer size used during the computation in 64-bit words bufSize, final EWAHCompressedBitmap... the source bitmaps bitmaps) Compute the xor aggregate using a temporary uncompressed bitmap.
public static < a class extending LogicalElement (like a compressed bitmap) T extends LogicalElement> T	Returns: the or aggregate or(T... bitmaps to be aggregated bitmaps) Uses a priority queue to compute the or aggregate.
public static EWAHCompressedBitmap	Returns: new bitmap containing the aggregate or(final EWAHCompressedBitmap... input bitmaps bitmaps) Simple algorithm that computes the OR aggregate.
public static EWAHCompressedBitmap	Returns: new bitmap containing the aggregate or(final Iterator<EWAHCompressedBitmap> input bitmaps bitmaps) Simple algorithm that computes the OR aggregate.
public static void	orToContainer(final BitmapStorage where we write the result container, final EWAHCompressedBitmap... to be aggregated bitmaps) Uses a priority queue to compute the or aggregate.
public static EWAHCompressedBitmap	Returns: new bitmap containing the aggregate xor(final EWAHCompressedBitmap... input bitmaps bitmaps) Simple algorithm that computes the XOR aggregate.
public static EWAHCompressedBitmap	Returns: new bitmap containing the aggregate xor(final Iterator<EWAHCompressedBitmap> input bitmaps bitmaps) Simple algorithm that computes the XOR aggregate.
public static < a class extending LogicalElement (like a compressed bitmap) T extends LogicalElement> T	Returns: the xor aggregate xor(T... bitmaps to be aggregated bitmaps) Uses a priority queue to compute the xor aggregate.
public static void	xorToContainer(final BitmapStorage where we write the result container, final EWAHCompressedBitmap... to be aggregated bitmaps) Uses a priority queue to compute the xor aggregate.

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

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

Method Detail

bufferedand	back to summary
public static EWAHCompressedBitmap bufferedand(final int bufSize, final EWAHCompressedBitmap... bitmaps) Compute the and aggregate using a temporary uncompressed bitmap. This function does not seek to match the "sizeinbits" attributes of the input bitmaps. Parameters bufSize:int buffer size used during the computation in 64-bit words (per input bitmap) bitmaps:EWAHCompressedBitmap[] the source bitmaps Returns:EWAHCompressedBitmap the or aggregate.

bufferedand

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public static EWAHCompressedBitmap bufferedand(final int bufSize, final EWAHCompressedBitmap... bitmaps)

Compute the and aggregate using a temporary uncompressed bitmap. This function does not seek to match the "sizeinbits" attributes of the input bitmaps.

Parameters

bufSize:int: buffer size used during the computation in 64-bit words (per input bitmap)
bitmaps:EWAHCompressedBitmap[]: the source bitmaps

Returns:EWAHCompressedBitmap

the or aggregate.

bufferedandWithContainer	back to summary
public static void bufferedandWithContainer(final BitmapStorage container, final int bufSize, final EWAHCompressedBitmap... bitmaps) Compute the and aggregate using a temporary uncompressed bitmap. This function does not seek to match the "sizeinbits" attributes of the input bitmaps. Parameters container:BitmapStorage where the aggregate is written bufSize:int buffer size used during the computation in 64-bit words (per input bitmap) bitmaps:EWAHCompressedBitmap[] the source bitmaps

bufferedandWithContainer

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public static void bufferedandWithContainer(final BitmapStorage container, final int bufSize, final EWAHCompressedBitmap... bitmaps)

Compute the and aggregate using a temporary uncompressed bitmap. This function does not seek to match the "sizeinbits" attributes of the input bitmaps.

Parameters

container:BitmapStorage: where the aggregate is written
bufSize:int: buffer size used during the computation in 64-bit words (per input bitmap)
bitmaps:EWAHCompressedBitmap[]: the source bitmaps

bufferedor	back to summary
public static EWAHCompressedBitmap bufferedor(final int bufSize, final EWAHCompressedBitmap... bitmaps) Compute the or aggregate using a temporary uncompressed bitmap. Parameters bufSize:int buffer size used during the computation in 64-bit words bitmaps:EWAHCompressedBitmap[] the source bitmaps Returns:EWAHCompressedBitmap the or aggregate.

bufferedor

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public static EWAHCompressedBitmap bufferedor(final int bufSize, final EWAHCompressedBitmap... bitmaps)

Compute the or aggregate using a temporary uncompressed bitmap.

Parameters

bufSize:int: buffer size used during the computation in 64-bit words
bitmaps:EWAHCompressedBitmap[]: the source bitmaps

Returns:EWAHCompressedBitmap

the or aggregate.

bufferedorWithContainer	back to summary
public static void bufferedorWithContainer(final BitmapStorage container, final int bufSize, final EWAHCompressedBitmap... bitmaps) Compute the or aggregate using a temporary uncompressed bitmap. Parameters container:BitmapStorage where the aggregate is written bufSize:int buffer size used during the computation in 64-bit words bitmaps:EWAHCompressedBitmap[] the source bitmaps

bufferedorWithContainer

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public static void bufferedorWithContainer(final BitmapStorage container, final int bufSize, final EWAHCompressedBitmap... bitmaps)

Compute the or aggregate using a temporary uncompressed bitmap.

Parameters

container:BitmapStorage: where the aggregate is written
bufSize:int: buffer size used during the computation in 64-bit words
bitmaps:EWAHCompressedBitmap[]: the source bitmaps

bufferedxor	back to summary
public static EWAHCompressedBitmap bufferedxor(final int bufSize, final EWAHCompressedBitmap... bitmaps) Compute the xor aggregate using a temporary uncompressed bitmap. Parameters bufSize:int buffer size used during the computation in 64-bit words bitmaps:EWAHCompressedBitmap[] the source bitmaps Returns:EWAHCompressedBitmap the xor aggregate.

bufferedxor

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public static EWAHCompressedBitmap bufferedxor(final int bufSize, final EWAHCompressedBitmap... bitmaps)

Compute the xor aggregate using a temporary uncompressed bitmap.

Parameters

bufSize:int: buffer size used during the computation in 64-bit words
bitmaps:EWAHCompressedBitmap[]: the source bitmaps

Returns:EWAHCompressedBitmap

the xor aggregate.

bufferedxorWithContainer	back to summary
public static void bufferedxorWithContainer(final BitmapStorage container, final int bufSize, final EWAHCompressedBitmap... bitmaps) Compute the xor aggregate using a temporary uncompressed bitmap. Parameters container:BitmapStorage where the aggregate is written bufSize:int buffer size used during the computation in 64-bit words bitmaps:EWAHCompressedBitmap[] the source bitmaps

bufferedxorWithContainer

back to summary

public static void bufferedxorWithContainer(final BitmapStorage container, final int bufSize, final EWAHCompressedBitmap... bitmaps)

Compute the xor aggregate using a temporary uncompressed bitmap.

Parameters

container:BitmapStorage: where the aggregate is written
bufSize:int: buffer size used during the computation in 64-bit words
bitmaps:EWAHCompressedBitmap[]: the source bitmaps

or	back to summary
public static <T extends LogicalElement> T or(T... bitmaps) Uses a priority queue to compute the or aggregate. This algorithm runs in linearithmic time (O(n log n)) with respect to the number of bitmaps. Parameters <T> a class extending LogicalElement (like a compressed bitmap) bitmaps:T[] bitmaps to be aggregated Returns:T the or aggregate Annotations @SuppressWarnings:rawtypes, unchecked

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public static <T extends LogicalElement> T or(T... bitmaps)

Uses a priority queue to compute the or aggregate. This algorithm runs in linearithmic time (O(n log n)) with respect to the number of bitmaps.

Parameters

<T>: a class extending LogicalElement (like a compressed bitmap)
bitmaps:T[]: bitmaps to be aggregated

Returns:T

the or aggregate

Annotations

@SuppressWarnings:rawtypes, unchecked

or	back to summary
public static EWAHCompressedBitmap or(final EWAHCompressedBitmap... bitmaps) Simple algorithm that computes the OR aggregate. Parameters bitmaps:EWAHCompressedBitmap[] input bitmaps Returns:EWAHCompressedBitmap new bitmap containing the aggregate

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public static EWAHCompressedBitmap or(final EWAHCompressedBitmap... bitmaps)

Simple algorithm that computes the OR aggregate.

Parameters

bitmaps:EWAHCompressedBitmap[]: input bitmaps

Returns:EWAHCompressedBitmap

new bitmap containing the aggregate

or	back to summary
public static EWAHCompressedBitmap or(final Iterator<EWAHCompressedBitmap> bitmaps) Simple algorithm that computes the OR aggregate. Parameters bitmaps:Iterator<EWAHCompressedBitmap> input bitmaps Returns:EWAHCompressedBitmap new bitmap containing the aggregate

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public static EWAHCompressedBitmap or(final Iterator<EWAHCompressedBitmap> bitmaps)

Simple algorithm that computes the OR aggregate.

Parameters

bitmaps:Iterator<EWAHCompressedBitmap>: input bitmaps

Returns:EWAHCompressedBitmap

new bitmap containing the aggregate

orToContainer	back to summary
public static void orToContainer(final BitmapStorage container, final EWAHCompressedBitmap... bitmaps) Uses a priority queue to compute the or aggregate. The content of the container is overwritten. This algorithm runs in linearithmic time (O(n log n)) with respect to the number of bitmaps. Parameters container:BitmapStorage where we write the result bitmaps:EWAHCompressedBitmap[] to be aggregated

orToContainer

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public static void orToContainer(final BitmapStorage container, final EWAHCompressedBitmap... bitmaps)

Uses a priority queue to compute the or aggregate. The content of the container is overwritten. This algorithm runs in linearithmic time (O(n log n)) with respect to the number of bitmaps.

Parameters

container:BitmapStorage: where we write the result
bitmaps:EWAHCompressedBitmap[]: to be aggregated

xor	back to summary
public static EWAHCompressedBitmap xor(final EWAHCompressedBitmap... bitmaps) Simple algorithm that computes the XOR aggregate. Parameters bitmaps:EWAHCompressedBitmap[] input bitmaps Returns:EWAHCompressedBitmap new bitmap containing the aggregate

xor

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public static EWAHCompressedBitmap xor(final EWAHCompressedBitmap... bitmaps)

Simple algorithm that computes the XOR aggregate.

Parameters

bitmaps:EWAHCompressedBitmap[]: input bitmaps

Returns:EWAHCompressedBitmap

new bitmap containing the aggregate

xor	back to summary
public static EWAHCompressedBitmap xor(final Iterator<EWAHCompressedBitmap> bitmaps) Simple algorithm that computes the XOR aggregate. Parameters bitmaps:Iterator<EWAHCompressedBitmap> input bitmaps Returns:EWAHCompressedBitmap new bitmap containing the aggregate

xor

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public static EWAHCompressedBitmap xor(final Iterator<EWAHCompressedBitmap> bitmaps)

Simple algorithm that computes the XOR aggregate.

Parameters

bitmaps:Iterator<EWAHCompressedBitmap>: input bitmaps

Returns:EWAHCompressedBitmap

new bitmap containing the aggregate

xor	back to summary
public static <T extends LogicalElement> T xor(T... bitmaps) Uses a priority queue to compute the xor aggregate. This algorithm runs in linearithmic time (O(n log n)) with respect to the number of bitmaps. Parameters <T> a class extending LogicalElement (like a compressed bitmap) bitmaps:T[] bitmaps to be aggregated Returns:T the xor aggregate Annotations @SuppressWarnings:rawtypes, unchecked

xor

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public static <T extends LogicalElement> T xor(T... bitmaps)

Uses a priority queue to compute the xor aggregate. This algorithm runs in linearithmic time (O(n log n)) with respect to the number of bitmaps.

Parameters

<T>: a class extending LogicalElement (like a compressed bitmap)
bitmaps:T[]: bitmaps to be aggregated

Returns:T

the xor aggregate

Annotations

@SuppressWarnings:rawtypes, unchecked

xorToContainer	back to summary
public static void xorToContainer(final BitmapStorage container, final EWAHCompressedBitmap... bitmaps) Uses a priority queue to compute the xor aggregate. The content of the container is overwritten. This algorithm runs in linearithmic time (O(n log n)) with respect to the number of bitmaps. Parameters container:BitmapStorage where we write the result bitmaps:EWAHCompressedBitmap[] to be aggregated

xorToContainer

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public static void xorToContainer(final BitmapStorage container, final EWAHCompressedBitmap... bitmaps)

Uses a priority queue to compute the xor aggregate. The content of the container is overwritten. This algorithm runs in linearithmic time (O(n log n)) with respect to the number of bitmaps.

Parameters

container:BitmapStorage: where we write the result
bitmaps:EWAHCompressedBitmap[]: to be aggregated

public final Class FastAggregation

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