water

Class DTask.DKeyTask<T extends DTask.DKeyTask,V extends Keyed>

java.lang.Object

jsr166y.ForkJoinTask<java.lang.Void>

jsr166y.CountedCompleter

water.H2O.H2OCountedCompleter<T>

water.DTask<DTask.DKeyTask>

water.DTask.DKeyTask<T,V>

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.concurrent.Future<java.lang.Void>, Freezable<DTask.DKeyTask>

Direct Known Subclasses:

DTask.RemoveCall

Enclosing class:

DTask<T extends DTask>

public abstract static class DTask.DKeyTask<T extends DTask.DKeyTask,V extends Keyed>
extends DTask<DTask.DKeyTask>

Task to be executed at the home node of the given key. Basically a wrapper around DTask which enables us to bypass remote/local distinction (RPC versus submitTask).

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class water.DTask

DTask.DKeyTask<T extends DTask.DKeyTask,V extends Keyed>, DTask.RemoveCall

Field Summary

Fields inherited from class water.DTask

_ex

Constructor Summary

Constructors

Constructor and Description
DKeyTask(H2O.H2OCountedCompleter cmp, Key k)

Method Summary

Modifier and Type	Method and Description
void	compute2() Override compute3() with actual work without having to worry about tryComplete()
T	invokeTask() Convenience blocking submit to work queues
protected abstract void	map(V v) Override map(); will be run on Key's home node
void	onCompletion(CountedCompleter cc) Performs an action when method CountedCompleter.tryComplete() is invoked and there are no pending counts, or when the unconditional method CountedCompleter.complete(java.lang.Void) is invoked.
void	submitTask() Convenience non-blocking submit to work queues

Methods inherited from class water.DTask

copyOver, dinvoke, getDException, hasException, logVerbose, onAck, onAckAck, setException

Methods inherited from class water.H2O.H2OCountedCompleter

asBytes, clone, compute, compute1, currThrPriority, frozenType, icer, priority, read, readJSON, reloadFromBytes, write, writeJSON

Methods inherited from class jsr166y.CountedCompleter

__tryComplete, addToPendingCount, compareAndSetPendingCount, complete, exec, getCompleter, getPendingCount, getRawResult, onExceptionalCompletion, setCompleter, setPendingCount, setRawResult, tryComplete

Methods inherited from class jsr166y.ForkJoinTask

adapt, adapt, adapt, cancel, compareAndSetForkJoinTaskTag, completeExceptionally, fork, get, get, getException, getForkJoinTaskTag, getPool, getQueuedTaskCount, getSurplusQueuedTaskCount, helpQuiesce, inForkJoinPool, invoke, invokeAll, invokeAll, invokeAll, isCancelled, isCompletedAbnormally, isCompletedNormally, isDone, join, peekNextLocalTask, pollNextLocalTask, pollTask, quietlyComplete, quietlyInvoke, quietlyJoin, reinitialize, setForkJoinTaskTag, tryUnfork

Methods inherited from class java.lang.Object

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

Constructor Detail

DKeyTask

public DKeyTask(H2O.H2OCountedCompleter cmp,
                Key k)

Method Detail

map

protected abstract void map(V v)

Override map(); will be run on Key's home node

compute2

public final void compute2()

Description copied from class: H2O.H2OCountedCompleter

Override compute3() with actual work without having to worry about tryComplete()

Overrides:

compute2 in class H2O.H2OCountedCompleter<DTask.DKeyTask>

onCompletion

public final void onCompletion(CountedCompleter cc)

Description copied from class: CountedCompleter

Performs an action when method CountedCompleter.tryComplete() is invoked and there are no pending counts, or when the unconditional method CountedCompleter.complete(java.lang.Void) is invoked. By default, this method does nothing.

Overrides:

onCompletion in class CountedCompleter

Parameters:

cc - the task invoking this method (which may be this task itself).

submitTask

public void submitTask()

Convenience non-blocking submit to work queues

invokeTask

public T invokeTask()

Convenience blocking submit to work queues