Package org.aksw.commons.collector.core

Class AggFinish<B,I,E,O,C extends Aggregator<B,E,I>>

java.lang.Object

org.aksw.commons.collector.core.AggFinish<B,I,E,O,C>

All Implemented Interfaces:

Serializable, Aggregator<B,E,O>

public class AggFinish<B,I,E,O,C extends Aggregator<B,E,I>>
extends Object
implements Aggregator<B,E,O>, Serializable

Convert the output value of an aggregator - this fulfills the role of the 'finisher' in a java8 collector. Note the difference between outputTransform and finish: The former is a per-accumulator operation which can be performed concurrently, whereas finish is a post-processing of the overall result.

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	AggFinish.AccFinish<I,E,O,V>

Constructor Summary

Constructors

Constructor	Description
AggFinish(C subAgg, Function<? super I,O> transform)

Method Summary

Modifier and Type	Method	Description
static <B, I, E, O, C extends Aggregator<B, E, I>> AggFinish<B,I,E,O,C>	create(C subAgg, Function<? super I,O> transform)
Accumulator<B,E,O>	createAccumulator()
boolean	equals(Object obj)
C	getSubAgg()
Function<? super I,O>	getTransform()
int	hashCode()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.aksw.commons.collector.domain.Aggregator

accumulateAll, accumulateAll, accumulateAll, finish

Constructor Details

AggFinish

public AggFinish(C subAgg,
 Function<? super I,O> transform)

Method Details

createAccumulator

public Accumulator<B,E,O> createAccumulator()

Specified by:

createAccumulator in interface Aggregator<B,I,E>

getSubAgg

public C getSubAgg()

getTransform

public Function<? super I,O> getTransform()

create

public static <B,
I,
E,
O,
C extends Aggregator<B,
E,
I>>
AggFinish<B,I,E,O,C> create(C subAgg,
 Function<? super I,O> transform)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object