Package | Description |
---|---|
org.apache.datasketches.sampling |
This package is dedicated to streaming algorithms that enable fixed size, uniform sampling of
unweighted items from a stream.
|
Modifier and Type | Method and Description |
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ReservoirLongsSketch |
ReservoirLongsUnion.getResult()
Returns a sketch representing the current state of the union.
|
static ReservoirLongsSketch |
ReservoirLongsSketch.heapify(org.apache.datasketches.memory.Memory srcMem)
Returns a sketch instance of this class from the given srcMem, which must be a Memory
representation of this sketch class.
|
static ReservoirLongsSketch |
ReservoirLongsSketch.newInstance(int k)
Construct a mergeable reservoir sampling sketch with up to k samples using the default resize
factor (8).
|
static ReservoirLongsSketch |
ReservoirLongsSketch.newInstance(int k,
ResizeFactor rf)
Construct a mergeable reservoir sampling sketch with up to k samples using the default resize
factor (8).
|
Modifier and Type | Method and Description |
---|---|
void |
ReservoirLongsUnion.update(ReservoirLongsSketch sketchIn)
Union the given sketch.
|
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