Package org.apache.flink.streaming.api.functions.aggregation

Class Comparator

java.lang.Object

org.apache.flink.streaming.api.functions.aggregation.Comparator

All Implemented Interfaces:

Serializable

@Internal
public abstract class Comparator
extends Object
implements Serializable

Internal comparator implementation, for use with ComparableAggregator.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
Comparator()

Method Summary

Modifier and Type	Method	Description
static Comparator	getForAggregation(AggregationFunction.AggregationType type)
abstract <R> int	isExtremal(Comparable<R> o1, R o2)

Methods inherited from class java.lang.Object

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

Constructor Details

Comparator

public Comparator()

Method Details

isExtremal

public abstract <R> int isExtremal(Comparable<R> o1,
 R o2)

getForAggregation

public static Comparator getForAggregation(AggregationFunction.AggregationType type)