org.apache.beam.sdk.extensions.sketching

Class SketchFrequencies.PerKeySketch<K,V>

java.lang.Object

org.apache.beam.sdk.transforms.PTransform<PCollection<KV<K,V>>,PCollection<KV<K,SketchFrequencies.Sketch<V>>>>

org.apache.beam.sdk.extensions.sketching.SketchFrequencies.PerKeySketch<K,V>

Type Parameters:

K - type of the keys mapping the elements

V - type of the values being combined per key

All Implemented Interfaces:

Serializable, HasDisplayData

Enclosing class:

SketchFrequencies

public abstract static class SketchFrequencies.PerKeySketch<K,V>
extends PTransform<PCollection<KV<K,V>>,PCollection<KV<K,SketchFrequencies.Sketch<V>>>>

Implementation of SketchFrequencies.perKey().

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.beam.sdk.transforms.PTransform

name

Constructor Summary

Constructors

Constructor and Description
PerKeySketch()

Method Summary

Modifier and Type	Method and Description
PCollection<KV<K,SketchFrequencies.Sketch<V>>>	expand(PCollection<KV<K,V>> input)
SketchFrequencies.PerKeySketch<K,V>	withConfidence(double conf)
SketchFrequencies.PerKeySketch<K,V>	withRelativeError(double eps)

Methods inherited from class org.apache.beam.sdk.transforms.PTransform

getAdditionalInputs, getDefaultOutputCoder, getDefaultOutputCoder, getDefaultOutputCoder, getKindString, getName, populateDisplayData, toString, validate

Methods inherited from class java.lang.Object

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

Constructor Detail

PerKeySketch

public PerKeySketch()

Method Detail

withRelativeError

public SketchFrequencies.PerKeySketch<K,V> withRelativeError(double eps)

withConfidence

public SketchFrequencies.PerKeySketch<K,V> withConfidence(double conf)

expand

public PCollection<KV<K,SketchFrequencies.Sketch<V>>> expand(PCollection<KV<K,V>> input)

Specified by:

expand in class PTransform<PCollection<KV<K,V>>,PCollection<KV<K,SketchFrequencies.Sketch<V>>>>