eu.toolchain.async.helper

Class CollectHelper<S,T>

java.lang.Object

eu.toolchain.async.helper.CollectHelper<S,T>

Type Parameters:

S - the source type being collected.

T - the target type, the collected sources are being transformed into.

All Implemented Interfaces:

FutureDone<S>

public class CollectHelper<S,T>
extends Object
implements FutureDone<S>

Helper class for TinyAsync.collect(Collection, Collector)

The helper implements FutureDone, and is intended to be used by binding it as a listener to the futures being collected.

This is a lock-free implementation capable of writing the results out of order.

Field Summary

Fields

Modifier and Type	Field and Description
static byte	CANCELLED
static byte	FAILED
static byte	RESOLVED

Constructor Summary

Constructors

Constructor and Description
CollectHelper(int size, Collector<S,T> collector, Collection<? extends AsyncFuture<?>> sources, ResolvableFuture<? super T> target)

Method Summary

Modifier and Type	Method and Description
void	cancelled()
void	failed(Throwable e)
void	resolved(S result)

Methods inherited from class java.lang.Object

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

Field Detail

RESOLVED

public static final byte RESOLVED

See Also:

Constant Field Values

FAILED

public static final byte FAILED

See Also:

Constant Field Values

CANCELLED

public static final byte CANCELLED

See Also:

Constant Field Values

Constructor Detail

CollectHelper

public CollectHelper(int size,
                     Collector<S,T> collector,
                     Collection<? extends AsyncFuture<?>> sources,
                     ResolvableFuture<? super T> target)

Method Detail

resolved

public void resolved(S result)
              throws Exception

Specified by:

resolved in interface FutureDone<S>

Throws:

Exception

failed

public void failed(Throwable e)
            throws Exception

Specified by:

failed in interface FutureDone<S>

Throws:

Exception

cancelled

public void cancelled()
               throws Exception

Specified by:

cancelled in interface FutureDone<S>

Throws:

Exception