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

类 LongSummaryAggregator

java.lang.Object

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

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

所有已实现的接口:

Serializable, Aggregator<Long,NumericColumnSummary<Long>>

@Internal
public class LongSummaryAggregator
extends NumericSummaryAggregator<Long>

Aggregator that can handle Long 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	LongSummaryAggregator.MaxLongAggregator Aggregator for max operation.
static class	LongSummaryAggregator.MinLongAggregator Aggregator for min operation.

构造器概要

构造器

构造器和说明
LongSummaryAggregator()

方法概要

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

LongSummaryAggregator

public LongSummaryAggregator()

方法详细资料

initMin

protected Aggregator<Long,Long> initMin()

指定者:

initMin 在类中 NumericSummaryAggregator<Long>

initMax

protected Aggregator<Long,Long> initMax()

指定者:

initMax 在类中 NumericSummaryAggregator<Long>

initSum

protected Aggregator<Long,Long> initSum()

指定者:

initSum 在类中 NumericSummaryAggregator<Long>

isNan

protected boolean isNan(Long number)

指定者:

isNan 在类中 NumericSummaryAggregator<Long>

isInfinite

protected boolean isInfinite(Long number)

指定者:

isInfinite 在类中 NumericSummaryAggregator<Long>