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

Class ValueSummaryAggregator.LongValueSummaryAggregator

java.lang.Object

org.apache.flink.api.java.summarize.aggregation.ValueSummaryAggregator<LongValue,Long,NumericColumnSummary<Long>,LongSummaryAggregator>

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

All Implemented Interfaces:

Serializable, Aggregator<LongValue,NumericColumnSummary<Long>>

Enclosing class:

ValueSummaryAggregator<VT extends Value,PT,R,A extends Aggregator<PT,R>>

public static class ValueSummaryAggregator.LongValueSummaryAggregator
extends ValueSummaryAggregator<LongValue,Long,NumericColumnSummary<Long>,LongSummaryAggregator>

A ValueSummaryAggregator for Long.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.api.java.summarize.aggregation.ValueSummaryAggregator

ValueSummaryAggregator.BooleanValueSummaryAggregator, ValueSummaryAggregator.DoubleValueSummaryAggregator, ValueSummaryAggregator.FloatValueSummaryAggregator, ValueSummaryAggregator.IntegerValueSummaryAggregator, ValueSummaryAggregator.LongValueSummaryAggregator, ValueSummaryAggregator.ShortValueSummaryAggregator, ValueSummaryAggregator.StringValueSummaryAggregator

Constructor Summary

Constructors

Constructor and Description
LongValueSummaryAggregator()

Method Summary

Modifier and Type	Method and Description
protected Long	getValue(LongValue value) Get the value out of a value type.
protected LongSummaryAggregator	initPrimitiveAggregator() Initialize an aggregator that can be used for the underlying primitive in the Value type.

Methods inherited from class org.apache.flink.api.java.summarize.aggregation.ValueSummaryAggregator

aggregate, combine, result

Methods inherited from class java.lang.Object

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

Constructor Detail

LongValueSummaryAggregator

public LongValueSummaryAggregator()

Method Detail

initPrimitiveAggregator

protected LongSummaryAggregator initPrimitiveAggregator()

Description copied from class: ValueSummaryAggregator

Initialize an aggregator that can be used for the underlying primitive in the Value type.

E.g. DoubleValues can easily be converted to Double and could use an underlying Aggregator<Double,?>

Specified by:

initPrimitiveAggregator in class ValueSummaryAggregator<LongValue,Long,NumericColumnSummary<Long>,LongSummaryAggregator>

getValue

protected Long getValue(LongValue value)

Description copied from class: ValueSummaryAggregator

Get the value out of a value type.

Specified by:

getValue in class ValueSummaryAggregator<LongValue,Long,NumericColumnSummary<Long>,LongSummaryAggregator>