Package org.copperengine.core.persistent

Class PersistentPriorityProcessorPool

java.lang.Object

org.copperengine.core.common.PriorityProcessorPool

org.copperengine.core.persistent.PersistentPriorityProcessorPool

All Implemented Interfaces:

ProcessorPool, PersistentProcessorPool, org.copperengine.management.PersistentPriorityProcessorPoolMXBean, org.copperengine.management.ProcessorPoolMXBean

public class PersistentPriorityProcessorPool
extends PriorityProcessorPool
implements PersistentProcessorPool, org.copperengine.management.PersistentPriorityProcessorPoolMXBean

Implementation of the PriorityProcessorPool interface for use in the PersistentScottyEngine.

Field Summary

Fields

Modifier and Type	Field	Description
static int	DEFAULT_DEQUEUE_SIZE

Fields inherited from class org.copperengine.core.common.PriorityProcessorPool

processorFactory, queue

Fields inherited from interface org.copperengine.core.persistent.PersistentProcessorPool

DEFAULT_POOL_ID

Constructor Summary

Constructors

Constructor	Description
PersistentPriorityProcessorPool()	Creates a new PersistentPriorityProcessorPool with as many worker threads as processors available on the corresponding environment.
PersistentPriorityProcessorPool(java.lang.String id, TransactionController transactionController)	Creates a new PersistentPriorityProcessorPool with as many worker threads as processors available on the corresponding environment.
PersistentPriorityProcessorPool(java.lang.String id, TransactionController transactionController, int numberOfThreads)

Method Summary

Modifier and Type	Method	Description
protected java.util.Queue<Workflow<?>>	createQueue()	Creates a new instance of WfPriorityQueue
void	doNotify()
int	getDequeueBulkSize()
int	getEmptyQueueWaitMSec()
int	getLowerThreshold()
int	getQueueSize()
protected TransactionController	getTransactionController()
int	getUpperThreshold()
int	getUpperThresholdReachedWaitMSec()
void	resumeDequeue()	Resumes dequeuing of workflow instances from the storage.
void	setDequeueBulkSize(int dequeueBulkSize)
void	setEmptyQueueWaitMSec(int emptyQueueWaitMSec)
void	setLowerThreshold(int lowerThreshold)
void	setTransactionController(TransactionController transactionController)
void	setUpperThreshold(int upperThreshold)
void	setUpperThresholdReachedWaitMSec(int upperThresholdReachedWaitMSec)
void	shutdown()	Shuts down the processor pool
void	startup()	Starts up the processor pool
void	suspendDequeue()	Suspends dequeuing of workflow instances from the storage.

Methods inherited from class org.copperengine.core.common.PriorityProcessorPool

getEngine, getId, getMemoryQueueSize, getNumberOfActiveThreads, getNumberOfThreads, getProcessorPoolState, getState, getThreadPriority, resume, setEngine, setId, setNumberOfThreads, setProcessorFactory, setShutdownWaitIntervalMSec, setThreadPriority, suspend

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.copperengine.core.common.ProcessorPool

getId, resume, setEngine, suspend

Methods inherited from interface org.copperengine.management.ProcessorPoolMXBean

getId, getMemoryQueueSize, getNumberOfActiveThreads, getNumberOfThreads, getProcessorPoolState, getThreadPriority, resume, setNumberOfThreads, setThreadPriority, suspend

Field Detail

DEFAULT_DEQUEUE_SIZE

public static final int DEFAULT_DEQUEUE_SIZE

See Also:

Constant Field Values

Constructor Detail

PersistentPriorityProcessorPool

public PersistentPriorityProcessorPool()

Creates a new PersistentPriorityProcessorPool with as many worker threads as processors available on the corresponding environment. id and transactionControler need to be initialized later using the setter.

PersistentPriorityProcessorPool

public PersistentPriorityProcessorPool(java.lang.String id,
                                       TransactionController transactionController)

Creates a new PersistentPriorityProcessorPool with as many worker threads as processors available on the corresponding environment.

Parameters:

id - unique id of the newly created processor pool. (Must not be longer than 32 chars to be stored in database)

transactionController - transaction controller which shall handle the transactions for workflows in between two checkpoints (i.e. between two calls to wait/resubmit/savepoint or from start to first occurence of those, or from last occurence to end). The transaction controller is only held in this class but used by the PersistentProcessors.

PersistentPriorityProcessorPool

public PersistentPriorityProcessorPool(java.lang.String id,
                                       TransactionController transactionController,
                                       int numberOfThreads)

Method Detail

setTransactionController

public void setTransactionController(TransactionController transactionController)

createQueue

protected java.util.Queue<Workflow<?>> createQueue()

Description copied from class: PriorityProcessorPool

Creates a new instance of WfPriorityQueue

Overrides:

createQueue in class PriorityProcessorPool

Returns:

the new created instance.

startup

public void startup()

Description copied from interface: ProcessorPool

Starts up the processor pool

Specified by:

startup in interface ProcessorPool

Overrides:

startup in class PriorityProcessorPool

shutdown

public void shutdown()

Description copied from interface: ProcessorPool

Shuts down the processor pool

Specified by:

shutdown in interface ProcessorPool

Overrides:

shutdown in class PriorityProcessorPool

doNotify

public void doNotify()

Specified by:

doNotify in interface PersistentProcessorPool

setLowerThreshold

public void setLowerThreshold(int lowerThreshold)

Specified by:

setLowerThreshold in interface org.copperengine.management.PersistentPriorityProcessorPoolMXBean

getLowerThreshold

public int getLowerThreshold()

Specified by:

getLowerThreshold in interface org.copperengine.management.PersistentPriorityProcessorPoolMXBean

setUpperThreshold

public void setUpperThreshold(int upperThreshold)

Specified by:

setUpperThreshold in interface org.copperengine.management.PersistentPriorityProcessorPoolMXBean

getUpperThreshold

public int getUpperThreshold()

Specified by:

getUpperThreshold in interface org.copperengine.management.PersistentPriorityProcessorPoolMXBean

getUpperThresholdReachedWaitMSec

public int getUpperThresholdReachedWaitMSec()

Specified by:

getUpperThresholdReachedWaitMSec in interface org.copperengine.management.PersistentPriorityProcessorPoolMXBean

setUpperThresholdReachedWaitMSec

public void setUpperThresholdReachedWaitMSec(int upperThresholdReachedWaitMSec)

Specified by:

setUpperThresholdReachedWaitMSec in interface org.copperengine.management.PersistentPriorityProcessorPoolMXBean

getEmptyQueueWaitMSec

public int getEmptyQueueWaitMSec()

Specified by:

getEmptyQueueWaitMSec in interface org.copperengine.management.PersistentPriorityProcessorPoolMXBean

setEmptyQueueWaitMSec

public void setEmptyQueueWaitMSec(int emptyQueueWaitMSec)

Specified by:

setEmptyQueueWaitMSec in interface org.copperengine.management.PersistentPriorityProcessorPoolMXBean

getDequeueBulkSize

public int getDequeueBulkSize()

Specified by:

getDequeueBulkSize in interface org.copperengine.management.PersistentPriorityProcessorPoolMXBean

setDequeueBulkSize

public void setDequeueBulkSize(int dequeueBulkSize)

Specified by:

setDequeueBulkSize in interface org.copperengine.management.PersistentPriorityProcessorPoolMXBean

getTransactionController

protected TransactionController getTransactionController()

suspendDequeue

public void suspendDequeue()

Description copied from interface: PersistentProcessorPool

Suspends dequeuing of workflow instances from the storage. Workflow instances that already reside in the transient queue are still processed, i.e. calling this methods runs this processor pool "dry".

Specified by:

suspendDequeue in interface org.copperengine.management.PersistentPriorityProcessorPoolMXBean

Specified by:

suspendDequeue in interface PersistentProcessorPool

See Also:

PersistentProcessorPool.resumeDequeue()

resumeDequeue

public void resumeDequeue()

Description copied from interface: PersistentProcessorPool

Resumes dequeuing of workflow instances from the storage.

Specified by:

resumeDequeue in interface org.copperengine.management.PersistentPriorityProcessorPoolMXBean

Specified by:

resumeDequeue in interface PersistentProcessorPool

See Also:

PersistentProcessorPool.suspendDequeue()

getQueueSize

public int getQueueSize()

Specified by:

getQueueSize in interface org.copperengine.management.ProcessorPoolMXBean