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

Class SumAggregator

java.lang.Object

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

public abstract class SumAggregator
extends Object

Constructor Summary

Constructors

Constructor and Description
SumAggregator()

Method Summary

Modifier and Type	Method and Description
static <T> org.apache.flink.api.common.functions.ReduceFunction<T>	getSumFunction(int pos, Class<?> clazz, org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInfo)
static <T> org.apache.flink.api.common.functions.ReduceFunction<T>	getSumFunction(String field, org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInfo, org.apache.flink.api.common.ExecutionConfig config)

Methods inherited from class java.lang.Object

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

Constructor Detail

SumAggregator

public SumAggregator()

Method Detail

getSumFunction

public static <T> org.apache.flink.api.common.functions.ReduceFunction<T> getSumFunction(int pos,
                                                                                         Class<?> clazz,
                                                                                         org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInfo)

getSumFunction

public static <T> org.apache.flink.api.common.functions.ReduceFunction<T> getSumFunction(String field,
                                                                                         org.apache.flink.api.common.typeinfo.TypeInformation<T> typeInfo,
                                                                                         org.apache.flink.api.common.ExecutionConfig config)