Package com.oracle.coherence.concurrent.executor

Class TaskCollectors.FirstOfCollector<T>

java.lang.Object

com.oracle.coherence.concurrent.executor.TaskCollectors.FirstOfCollector<T>

Type Parameters:

T - the type of result

All Implemented Interfaces:

Task.Collector<T,AtomicReference<T>,T>, com.tangosol.io.ExternalizableLite, com.tangosol.io.pof.PortableObject, Serializable

Enclosing class:

TaskCollectors

public static class TaskCollectors.FirstOfCollector<T>
extends Object
implements Task.Collector<T,AtomicReference<T>,T>, com.tangosol.io.pof.PortableObject

A Task.Collector to collect any (the first provided) available result.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
FirstOfCollector()

Method Summary

Modifier and Type	Method	Description
BiConsumer<AtomicReference<T>,T>	accumulator()	A function that folds Task results into a mutable result container.
com.tangosol.util.function.Remote.Predicate<AtomicReference<T>>	finishable()	A Remote.Predicate to determine if a result container can be finished early avoiding further accumulation of results using the container.
Function<AtomicReference<T>,T>	finisher()	Perform the final transformation from the intermediate accumulation type A to the final result type R.
void	readExternal(com.tangosol.io.pof.PofReader in)
void	readExternal(DataInput in)
Supplier<AtomicReference<T>>	supplier()	A function that creates and returns a new mutable result container.
void	writeExternal(com.tangosol.io.pof.PofWriter out)
void	writeExternal(DataOutput out)

Methods inherited from class java.lang.Object

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

Constructor Detail

FirstOfCollector

public FirstOfCollector()

Method Detail

accumulator

public BiConsumer<AtomicReference<T>,T> accumulator()

Description copied from interface: Task.Collector

A function that folds Task results into a mutable result container.

Specified by:

accumulator in interface Task.Collector<T,AtomicReference<T>,T>

Returns:

a function that folds Task results into a mutable result container

finisher

public Function<AtomicReference<T>,T> finisher()

Description copied from interface: Task.Collector

Perform the final transformation from the intermediate accumulation type A to the final result type R.

Specified by:

finisher in interface Task.Collector<T,AtomicReference<T>,T>

Returns:

a function which transforms the intermediate result to the final result

finishable

public com.tangosol.util.function.Remote.Predicate<AtomicReference<T>> finishable()

Description copied from interface: Task.Collector

A Remote.Predicate to determine if a result container can be finished early avoiding further accumulation of results using the container.

Should there be no further results to accumulate, finishing the result container with the Task.Collector.finisher() will occur regardless of the result returned by the Remote.Predicate.

Specified by:

finishable in interface Task.Collector<T,AtomicReference<T>,T>

Returns:

a Remote.Predicate

supplier

public Supplier<AtomicReference<T>> supplier()

Description copied from interface: Task.Collector

A function that creates and returns a new mutable result container.

Specified by:

supplier in interface Task.Collector<T,AtomicReference<T>,T>

Returns:

a function which returns a new mutable result container

readExternal

public void readExternal(DataInput in)
                  throws IOException

Specified by:

readExternal in interface com.tangosol.io.ExternalizableLite

Throws:

IOException

writeExternal

public void writeExternal(DataOutput out)
                   throws IOException

Specified by:

writeExternal in interface com.tangosol.io.ExternalizableLite

Throws:

IOException

readExternal

public void readExternal(com.tangosol.io.pof.PofReader in)
                  throws IOException

Specified by:

readExternal in interface com.tangosol.io.pof.PortableObject

Throws:

IOException

writeExternal

public void writeExternal(com.tangosol.io.pof.PofWriter out)
                   throws IOException

Specified by:

writeExternal in interface com.tangosol.io.pof.PortableObject

Throws:

IOException