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

Class SumFunction

java.lang.Object

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

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

SumFunction.ByteSum, SumFunction.DoubleSum, SumFunction.FloatSum, SumFunction.IntSum, SumFunction.LongSum, SumFunction.ShortSum

@Internal
public abstract class SumFunction
extends Object
implements Serializable

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SumFunction.ByteSum
static class	SumFunction.DoubleSum
static class	SumFunction.FloatSum
static class	SumFunction.IntSum
static class	SumFunction.LongSum
static class	SumFunction.ShortSum

Constructor Summary

Constructors

Constructor and Description
SumFunction()

Method Summary

Modifier and Type	Method and Description
abstract Object	add(Object o1, Object o2)
static SumFunction	getForClass(Class<?> clazz)

Methods inherited from class java.lang.Object

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

Constructor Detail

SumFunction

public SumFunction()

Method Detail

add

public abstract Object add(Object o1,
                           Object o2)

getForClass

public static SumFunction getForClass(Class<?> clazz)