Package de.aristaflow.adept2.util.threading.executor

Class PipelineRunnable<O,P>

java.lang.Object

de.aristaflow.adept2.util.threading.executor.AbstractObjectRunnable<O,P,Queue<Runnable>>

de.aristaflow.adept2.util.threading.executor.PipelineRunnable<O,P>

Type Parameters:

O - The type of objects with which the runnable is registered (before hashing).

P - The type of objects that identifies a pipeline (after hashing).

All Implemented Interfaces:

ObjectRunnable<O,P>, Runnable

public class PipelineRunnable<O,P>
extends AbstractObjectRunnable<O,P,Queue<Runnable>>

A runnable that executes all runnables that are present for a specific object. Think of this runnable as pipeline that executes all work that arrives in the pipeline. As soon as there is no more work, the pipeline (represented by a queue) will be deleted.

Field Summary

Fields

Modifier and Type	Field	Description
protected Queue<Runnable>	pipeline	The pipeline providing the work for this runnable.

Fields inherited from class de.aristaflow.adept2.util.threading.executor.AbstractObjectRunnable

logger, objects, terminate

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	PipelineRunnable(O object, P pipelineId, Queue<Runnable> pipeline, Map<P,Pair<ObjectRunnable<O,P>,Queue<Runnable>>> pipelines, AtomicInteger terminate, Logger logger)	Creates a new runnable that executes all the work present for a specific object (in a pipeline).

Method Summary

Modifier and Type	Method	Description
protected boolean	runForObject()	Runs this runnable actually.

Methods inherited from class de.aristaflow.adept2.util.threading.executor.AbstractObjectRunnable

awaitTermination, getIndexObject, getRegisteredObject, run

Methods inherited from class java.lang.Object

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

Field Detail

pipeline

protected final Queue<Runnable> pipeline

The pipeline providing the work for this runnable.

Constructor Detail

PipelineRunnable

protected PipelineRunnable(O object,
                           P pipelineId,
                           Queue<Runnable> pipeline,
                           Map<P,Pair<ObjectRunnable<O,P>,Queue<Runnable>>> pipelines,
                           AtomicInteger terminate,
                           Logger logger)

Creates a new runnable that executes all the work present for a specific object (in a pipeline).

Parameters:

object - The object for which this pipeline runnable has been registered.

pipelineId - The identifier of our pipeline.

pipeline - The pipeline providing the work for this runnable.

pipelines - The data structures containing all pipelines from which the current pipeline will be removed as soon as it is empty.

terminate - The amount of termination requests. This allows for synchronising across different pipelines.

logger - The logger which to use for runtime exceptions stemming from a executing a runnable. Such an exception will only be logged, the execution of the pipeline will continue.

Method Detail

runForObject

protected boolean runForObject()

Description copied from class: AbstractObjectRunnable

Runs this runnable actually. Activation and termination signalling are already handled, implementations only need to react to termination requests.

Specified by:

runForObject in class AbstractObjectRunnable<O,P,Queue<Runnable>>

Returns:

Whether the work for the object has been terminated. Otherwise there is work left and the termination is not signalled. With a termination request, return true, only return false if you want to continue to work without interruption, e.g. to change the executing thread.