org.apache.flink.api.java.aggregation

类 SumAggregationFunction<T>

java.lang.Object

org.apache.flink.api.java.aggregation.AggregationFunction<T>

org.apache.flink.api.java.aggregation.SumAggregationFunction<T>

类型参数:

T - type of elements being summed

所有已实现的接口:

Serializable

@Internal
public abstract class SumAggregationFunction<T>
extends AggregationFunction<T>

Definitions of sum functions for different numerical types.

另请参阅:

序列化表格

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	SumAggregationFunction.SumAggregationFunctionFactory Factory for SumAggregationFunction.

构造器概要

构造器

构造器和说明
SumAggregationFunction()

方法概要

限定符和类型	方法和说明
String	toString()

从类继承的方法 org.apache.flink.api.java.aggregation.AggregationFunction

aggregate, getAggregate, initializeAggregate

从类继承的方法 java.lang.Object

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

构造器详细资料

SumAggregationFunction

public SumAggregationFunction()

方法详细资料

toString

public String toString()

覆盖:

toString 在类中 Object