org.ujorm.tools.thread

Class ParallelJob<P>

java.lang.Object

org.ujorm.tools.thread.Jobs<P>

org.ujorm.tools.thread.ParallelJob<P>

public class ParallelJob<P>
extends Jobs<P>

A multithreading task runner Before using this class, make sure the target JRE contains a JDK-8224620 fix : https://bugs.openjdk.java.net/browse/JDK-8224620 .

Since:

1.95

See Also:

https://www.baeldung.com/java-fork-join, https://stackoverflow.com/questions/21163108/custom-thread-pool-in-java-8-parallel-stream

Nested Class Summary

Nested classes/interfaces inherited from class org.ujorm.tools.thread.Jobs

Jobs.JobException, Jobs.UserFunction<T,R>

Field Summary

Fields

Modifier and Type	Field and Description
protected static String	REQUIRED_INPUT_TEMPLATE_MSG Template message for an invalid input
protected ForkJoinPool	threadPool Thread pool

Fields inherited from class org.ujorm.tools.thread.Jobs

timeout

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ParallelJob(Stream<P> params, JobContext jobContext)

Method Summary

Modifier and Type	Method and Description
<R> Stream<R>	run(Jobs.UserFunction<P,R> job) Get of single values where all nulls are excluded
<R> Stream<R>	runOfStream(Jobs.UserFunction<P,Stream<R>> job) Get result of a Streams

Methods inherited from class org.ujorm.tools.thread.Jobs

getParallel, runOfSum, setTimeout

Methods inherited from class java.lang.Object

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

Field Detail

REQUIRED_INPUT_TEMPLATE_MSG

protected static final String REQUIRED_INPUT_TEMPLATE_MSG

Template message for an invalid input

See Also:

Constant Field Values

threadPool

@Nonnull
protected final ForkJoinPool threadPool

Thread pool

Constructor Detail

ParallelJob

protected ParallelJob(@Nonnull
                      Stream<P> params,
                      @Nonnull
                      JobContext jobContext)

Method Detail

run

public <R> Stream<R> run(@Nonnull
                         Jobs.UserFunction<P,R> job)
                  throws Jobs.JobException

Get of single values where all nulls are excluded

Overrides:

run in class Jobs<P>

Parameters:

job - Job with a simple value result

Returns:

The result stream

Throws:

Jobs.JobException

runOfStream

public <R> Stream<R> runOfStream(@Nonnull
                                 Jobs.UserFunction<P,Stream<R>> job)
                          throws Jobs.JobException

Get result of a Streams

Overrides:

runOfStream in class Jobs<P>

Parameters:

job - Job with a stream result

Returns:

The result stream

Throws:

Jobs.JobException