Package org.glassfish.hk2.utilities.cache

Class Cache.OriginThreadAwareFuture

java.lang.Object

org.glassfish.hk2.utilities.cache.Cache.OriginThreadAwareFuture

All Implemented Interfaces:

Future<V>

Enclosing class:

Cache<K,V>

private class Cache.OriginThreadAwareFuture
extends Object
implements Future<V>

Helper class, that remembers the future task origin thread, so that cycles could be detected. If any thread starts computation for given key and the same thread requests the computed value before the computation stops, a cycle is detected and registered cycle handler is called.

Field Summary

Fields

Modifier and Type	Field	Description
private final FutureTask<V>	future
private long	threadId

Constructor Summary

Constructors

Constructor	Description
OriginThreadAwareFuture(Cache<K,V> cache, K key)

Method Summary

Modifier and Type	Method	Description
boolean	cancel(boolean mayInterruptIfRunning)
boolean	equals(Object obj)
V	get()
V	get(long timeout, TimeUnit unit)
int	hashCode()
boolean	isCancelled()
boolean	isDone()
void	run()

Methods inherited from class java.lang.Object

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

Field Details

threadId

private volatile long threadId

future

private final FutureTask<V> future

Constructor Details

OriginThreadAwareFuture

OriginThreadAwareFuture(Cache<K,V> cache,
 K key)

Method Details

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

cancel

public boolean cancel(boolean mayInterruptIfRunning)

Specified by:

cancel in interface Future<V>

isCancelled

public boolean isCancelled()

Specified by:

isCancelled in interface Future<V>

isDone

public boolean isDone()

Specified by:

isDone in interface Future<V>

get

public V get()
      throws InterruptedException,
ExecutionException

Specified by:

get in interface Future<V>

Throws:

InterruptedException

ExecutionException

get

public V get(long timeout,
 TimeUnit unit)
      throws InterruptedException,
ExecutionException,
TimeoutException

Specified by:

get in interface Future<V>

Throws:

InterruptedException

ExecutionException

TimeoutException

run

public void run()