Module org.jhotdraw8.base

Package org.jhotdraw8.base.concurrent

Class RangeTask

java.lang.Object

java.util.concurrent.ForkJoinTask<Void>

java.util.concurrent.CountedCompleter<Void>

org.jhotdraw8.base.concurrent.RangeTask

All Implemented Interfaces:

Serializable, Future<Void>

public class RangeTask
extends CountedCompleter<Void>

A fork-join task that processes a range of integers from lo to hi (exclusive) in chunks of up to chunkSize.

Usage:

 RangeTask.forEach(0,1000,10,(lo,hi)->{for(int i=lo;i<hi;i++) {....};});
 

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.concurrent.Future

Future.State

Constructor Summary

Constructors

Constructor	Description
RangeTask(int lo, int hi, int chunkSize, @NonNull BiConsumer<Integer,Integer> rangeConsumer, @NonNull CompletableFuture<Void> future)

Method Summary

Modifier and Type	Method	Description
void	compute()
static void	forEach(int lo, int hi, int chunkSize, BiConsumer<Integer,Integer> action)
static CompletableFuture<Void>	fork(int lo, int hi, int chunkSize, BiConsumer<Integer,Integer> action)
void	onCompletion(CountedCompleter<?> caller)
boolean	onExceptionalCompletion(Throwable ex, CountedCompleter<?> caller)

Methods inherited from class java.util.concurrent.CountedCompleter

addToPendingCount, compareAndSetPendingCount, complete, decrementPendingCountUnlessZero, exec, firstComplete, getCompleter, getPendingCount, getRawResult, getRoot, helpComplete, nextComplete, propagateCompletion, quietlyCompleteRoot, setPendingCount, setRawResult, tryComplete

Methods inherited from class java.util.concurrent.ForkJoinTask

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

Methods inherited from class java.lang.Object

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

Constructor Details

RangeTask

public RangeTask(int lo,
 int hi,
 int chunkSize,
 @NonNull BiConsumer<Integer,Integer> rangeConsumer,
 @NonNull CompletableFuture<Void> future)

Method Details

compute

public void compute()

Specified by:

compute in class CountedCompleter<Void>

onCompletion

public void onCompletion(CountedCompleter<?> caller)

Overrides:

onCompletion in class CountedCompleter<Void>

onExceptionalCompletion

public boolean onExceptionalCompletion(Throwable ex,
 CountedCompleter<?> caller)

Overrides:

onExceptionalCompletion in class CountedCompleter<Void>

forEach

public static void forEach(int lo,
 int hi,
 int chunkSize,
 BiConsumer<Integer,Integer> action)

fork

public static CompletableFuture<Void> fork(int lo,
 int hi,
 int chunkSize,
 BiConsumer<Integer,Integer> action)