org.apache.beam.sdk.transforms

Class ApproximateUnique.ApproximateUniqueCombineFn.LargestUnique

java.lang.Object

org.apache.beam.sdk.transforms.ApproximateUnique.ApproximateUniqueCombineFn.LargestUnique

All Implemented Interfaces:

java.io.Serializable

Enclosing class:

ApproximateUnique.ApproximateUniqueCombineFn<T>

public static class ApproximateUnique.ApproximateUniqueCombineFn.LargestUnique
extends java.lang.Object
implements java.io.Serializable

A heap utility class to efficiently track the largest added elements.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
LargestUnique(long sampleSize) Creates a heap to track the largest sampleSize elements.

Method Summary

Modifier and Type	Method and Description
boolean	add(long value) Adds a value to the heap, returning whether the value is (large enough to be) in the heap.
boolean	equals(@Nullable java.lang.Object o)
int	hashCode()

Methods inherited from class java.lang.Object

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

Constructor Detail

LargestUnique

public LargestUnique(long sampleSize)

Creates a heap to track the largest sampleSize elements.

Parameters:

sampleSize - the size of the heap

Method Detail

add

public boolean add(long value)

Adds a value to the heap, returning whether the value is (large enough to be) in the heap.

equals

public boolean equals(@Nullable java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object