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

Class ValueSummaryAggregator.IntegerValueSummaryAggregator

java.lang.Object

org.apache.flink.api.java.summarize.aggregation.ValueSummaryAggregator<IntValue,Integer,NumericColumnSummary<Integer>,IntegerSummaryAggregator>

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

All Implemented Interfaces:

Serializable, Aggregator<IntValue,NumericColumnSummary<Integer>>

Enclosing class:

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

public static class ValueSummaryAggregator.IntegerValueSummaryAggregator
extends ValueSummaryAggregator<IntValue,Integer,NumericColumnSummary<Integer>,IntegerSummaryAggregator>

A ValueSummaryAggregator for Integer.

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
IntegerValueSummaryAggregator()

Method Summary

Modifier and Type	Method and Description
protected Integer	getValue(IntValue value) Get the value out of a value type.
protected IntegerSummaryAggregator	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

IntegerValueSummaryAggregator

public IntegerValueSummaryAggregator()

Method Detail

initPrimitiveAggregator

protected IntegerSummaryAggregator 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<IntValue,Integer,NumericColumnSummary<Integer>,IntegerSummaryAggregator>

getValue

protected Integer getValue(IntValue value)

Description copied from class: ValueSummaryAggregator

Get the value out of a value type.

Specified by:

getValue in class ValueSummaryAggregator<IntValue,Integer,NumericColumnSummary<Integer>,IntegerSummaryAggregator>