org.apache.felix.ipojo.extender.internal.queue.pref.enforce

Class ForwardingQueueService

java.lang.Object

org.apache.felix.ipojo.extender.internal.queue.pref.enforce.ForwardingQueueService

All Implemented Interfaces:

Lifecycle, LifecycleQueueService, QueueService

Direct Known Subclasses:

EnforcedQueueService

public abstract class ForwardingQueueService
extends java.lang.Object
implements LifecycleQueueService

A queue service implementation delegating to a LifecycleQueueService.

Field Summary

Fields inherited from interface org.apache.felix.ipojo.extender.queue.QueueService

ASYNCHRONOUS_QUEUE_MODE, GLOABL_QUEUE_SCOPE, PREFERENCE_QUEUE_MODE, QUEUE_MODE_PROPERTY, QUEUE_SCOPE_PROPERTY, SYNCHRONOUS_QUEUE_MODE

Constructor Summary

Constructors

Constructor and Description
ForwardingQueueService()

Method Summary

Modifier and Type	Method and Description
void	addQueueListener(QueueListener listener) Add a QueueListener that will be notified on events relative to this QueueService.
protected abstract LifecycleQueueService	delegate()
int	getCurrents()
int	getFinished()
int	getWaiters()
java.util.List<JobInfo>	getWaitersInfo()
void	removeQueueListener(QueueListener listener) Remove a QueueListener from this QueueService.
void	start() Start the service.
void	stop() Stop the service.
<T> java.util.concurrent.Future<T>	submit(Job<T> callable) Submits a job to the queue service.
<T> java.util.concurrent.Future<T>	submit(Job<T> callable, Callback<T> callback, java.lang.String description) Submits a job to the queue service.
<T> java.util.concurrent.Future<T>	submit(Job<T> callable, java.lang.String description) Submits a job to the queue service.

Methods inherited from class java.lang.Object

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

Constructor Detail

ForwardingQueueService

public ForwardingQueueService()

Method Detail

delegate

protected abstract LifecycleQueueService delegate()

start

public void start()

Description copied from interface: Lifecycle

Start the service.

Specified by:

start in interface Lifecycle

stop

public void stop()

Description copied from interface: Lifecycle

Stop the service.

Specified by:

stop in interface Lifecycle

getFinished

public int getFinished()

Specified by:

getFinished in interface QueueService

Returns:

the number of jobs that have been executed entirely (including successful and erroneous jobs).

getWaiters

public int getWaiters()

Specified by:

getWaiters in interface QueueService

Returns:

the number of jobs scheduled but not yet started.

getCurrents

public int getCurrents()

Specified by:

getCurrents in interface QueueService

Returns:

the number of jobs currently executed (started but not finished).

getWaitersInfo

public java.util.List<JobInfo> getWaitersInfo()

Specified by:

getWaitersInfo in interface QueueService

Returns:

a snapshot of the currently waiting jobs.

submit

public <T> java.util.concurrent.Future<T> submit(Job<T> callable,
                                                 Callback<T> callback,
                                                 java.lang.String description)

Description copied from interface: QueueService

Submits a job to the queue service.

Specified by:

submit in interface QueueService

Parameters:

callable - the job

callback - callback called when the job is processed

description - a description of the job

Returns:

the future object to retrieve the result

submit

public <T> java.util.concurrent.Future<T> submit(Job<T> callable,
                                                 java.lang.String description)

Description copied from interface: QueueService

Submits a job to the queue service.

Specified by:

submit in interface QueueService

Parameters:

callable - the job

description - a description of the job

Returns:

the future object to retrieve the result

submit

public <T> java.util.concurrent.Future<T> submit(Job<T> callable)

Description copied from interface: QueueService

Submits a job to the queue service.

Specified by:

submit in interface QueueService

Parameters:

callable - the job

Returns:

the future object to retrieve the result

addQueueListener

public void addQueueListener(QueueListener listener)

Description copied from interface: QueueService

Add a QueueListener that will be notified on events relative to this QueueService.

Specified by:

addQueueListener in interface QueueService

Parameters:

listener - added listener

removeQueueListener

public void removeQueueListener(QueueListener listener)

Description copied from interface: QueueService

Remove a QueueListener from this QueueService.

Specified by:

removeQueueListener in interface QueueService

Parameters:

listener - removed listener