Package de.uni_trier.wi2.procake.utils.concurrent

Class ParallelPoolProcessing

java.lang.Object

de.uni_trier.wi2.procake.utils.concurrent.ParallelPoolProcessing

public class ParallelPoolProcessing
extends Object

This class is intended to be used to process elements of a case base in parallel across multiple threads. Therefore, it is specified by the using class which task should be executed on every element of the case base.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ParallelPoolProcessing.ProcessingTask	Interface that holds the main method for every call to process an element from the case base.

Constructor Summary

Constructors

Constructor	Description
ParallelPoolProcessing()
ParallelPoolProcessing(DataObject[] poolArr, int taskSize, boolean sortQueue)
ParallelPoolProcessing(ReadableObjectPool<DataObject> pool, int taskSize, boolean sortQueue)
ParallelPoolProcessing(ReadableObjectPool<DataObject> pool, int taskSize, boolean sortQueue, int numberOfWorkers)

Method Summary

Modifier and Type	Method	Description
void	addProcessingTask(ParallelPoolProcessing.ProcessingTask task)
int	getNumberOfWorkers()
int	getTaskSize()
boolean	isSorting()
void	process()	Main method that is called in order to start parallel processing of all cases in the case base.
void	processAndWait()	Main method that is called in order to start parallel processing of all cases in the case base.
void	setSorting(boolean sorting)
void	setTaskSize(int taskSize)
void	terminate()	Terminates all computations of the underlying thread pool.

Methods inherited from class java.lang.Object

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

Constructor Details

ParallelPoolProcessing

public ParallelPoolProcessing()

ParallelPoolProcessing

public ParallelPoolProcessing(ReadableObjectPool<DataObject> pool,
 int taskSize,
 boolean sortQueue)

ParallelPoolProcessing

public ParallelPoolProcessing(ReadableObjectPool<DataObject> pool,
 int taskSize,
 boolean sortQueue,
 int numberOfWorkers)

ParallelPoolProcessing

public ParallelPoolProcessing(DataObject[] poolArr,
 int taskSize,
 boolean sortQueue)

Method Details

processAndWait

public void processAndWait()

Main method that is called in order to start parallel processing of all cases in the case base. It starts all workers. The method does block the main thread. It is not required to call terminate() to finish all computations of the thread pool.

terminate

public void terminate()

Terminates all computations of the underlying thread pool. This methof has to be called after a prior call of process(). In contrast, processAndWait() automatically blocks until all computations have finished.

process

public void process()

Main method that is called in order to start parallel processing of all cases in the case base. It starts all workers. The method does not block the main thread. It is required to call terminate() at a certain point to finish all computations of the thread pool.

getTaskSize

public int getTaskSize()

setTaskSize

public void setTaskSize(int taskSize)

isSorting

public boolean isSorting()

setSorting

public void setSorting(boolean sorting)

getNumberOfWorkers

public int getNumberOfWorkers()

addProcessingTask

public void addProcessingTask(ParallelPoolProcessing.ProcessingTask task)