org.apache.flink.api.java.summarize.aggregation

类 DoubleSummaryAggregator

java.lang.Object

org.apache.flink.api.java.summarize.aggregation.NumericSummaryAggregator<Double>

org.apache.flink.api.java.summarize.aggregation.DoubleSummaryAggregator

所有已实现的接口:

Serializable, Aggregator<Double,NumericColumnSummary<Double>>

@Internal
public class DoubleSummaryAggregator
extends NumericSummaryAggregator<Double>

Aggregator that can handle Double 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	DoubleSummaryAggregator.MaxDoubleAggregator Aggregator for max operation.
static class	DoubleSummaryAggregator.MinDoubleAggregator Aggregator for min operation.
static class	DoubleSummaryAggregator.SumDoubleAggregator Aggregator for sum operation.

构造器概要

构造器

构造器和说明
DoubleSummaryAggregator()

方法概要

限定符和类型	方法和说明
protected Aggregator<Double,Double>	initMax()
protected Aggregator<Double,Double>	initMin()
protected Aggregator<Double,Double>	initSum()
protected boolean	isInfinite(Double number)
protected boolean	isNan(Double number)

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

aggregate, combine, result

从类继承的方法 java.lang.Object

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

构造器详细资料

DoubleSummaryAggregator

public DoubleSummaryAggregator()

方法详细资料

initMin

protected Aggregator<Double,Double> initMin()

指定者:

initMin 在类中 NumericSummaryAggregator<Double>

initMax

protected Aggregator<Double,Double> initMax()

指定者:

initMax 在类中 NumericSummaryAggregator<Double>

initSum

protected Aggregator<Double,Double> initSum()

指定者:

initSum 在类中 NumericSummaryAggregator<Double>

isNan

protected boolean isNan(Double number)

指定者:

isNan 在类中 NumericSummaryAggregator<Double>

isInfinite

protected boolean isInfinite(Double number)

指定者:

isInfinite 在类中 NumericSummaryAggregator<Double>