Package org.aksw.commons.collector.core

Class AggFromCollector<I,E,O,A>

java.lang.Object

org.aksw.commons.collector.core.AggFromCollector<I,E,O,A>

All Implemented Interfaces:

Serializable, Aggregator<I,E,O>, ParallelAggregator<I,E,O,AggFromCollector.AccFromCollector<I,E,O,A>>

public class AggFromCollector<I,E,O,A>
extends Object
implements ParallelAggregator<I,E,O,AggFromCollector.AccFromCollector<I,E,O,A>>, Serializable

An aggregator from a collector. Together with SerializableCollectorImpl a bridge is formed to construct parallelizable aggregators from custom lambdas;

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	AggFromCollector.AccFromCollector<I,E,O,A>
class	AggFromCollector.AccFromCollectorImpl

Field Summary

Fields

Modifier and Type	Field	Description
protected Collector<I,A,O>	collector

Constructor Summary

Constructors

Constructor	Description
AggFromCollector(Collector<I,A,O> collector)

Method Summary

Modifier and Type	Method	Description
AggFromCollector.AccFromCollector<I,E,O,A>	combine(AggFromCollector.AccFromCollector<I,E,O,A> a, AggFromCollector.AccFromCollector<I,E,O,A> b)	Combine accumulators.
AggFromCollector.AccFromCollector<I,E,O,A>	createAccumulator()
boolean	equals(Object obj)
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

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

asCollector, asCollector, combineRaw

Field Details

collector

protected Collector<I,A,O> collector

Constructor Details

AggFromCollector

public AggFromCollector(Collector<I,A,O> collector)

Method Details

createAccumulator

public AggFromCollector.AccFromCollector<I,E,O,A> createAccumulator()

Specified by:

createAccumulator in interface Aggregator<I,E,O>

Specified by:

createAccumulator in interface ParallelAggregator<I,E,O,A>

combine

public AggFromCollector.AccFromCollector<I,E,O,A> combine(AggFromCollector.AccFromCollector<I,E,O,A> a,
 AggFromCollector.AccFromCollector<I,E,O,A> b)

Description copied from interface: ParallelAggregator

Combine accumulators. This method is allowed to mutate any of if its arguments, hence accumulators should be considered exhausted after combination.

Specified by:

combine in interface ParallelAggregator<I,E,O,A>

Parameters:

a - First participant of combination

b - Second participant of combination

Returns:

Combined accumulator

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object