org.aredis.util

Class PeriodicTaskPoller

java.lang.Object

org.aredis.util.PeriodicTaskPoller

All Implemented Interfaces:

Runnable

public class PeriodicTaskPoller
extends Object
implements Runnable

A Singleton task poller which runs periodic tasks at a regular interval of 15 seconds. The registered periodic tasks are run sequentially. It uses AsyncRedisConnection.getTimer to register itself with the timer when instantiated. Since the tasks run sequentially in the thread of the timer they should be very light-weight like checking timeStamps or statuses. Any other processing should be done asynchronously.

Author:

Suresh

Field Summary

Fields

Modifier and Type	Field and Description
static int	POLL_INTERVAL_SECONDS

Method Summary

Methods

Modifier and Type	Method and Description
boolean	addTask(PeriodicTask t) Adds a task to be run at the specified interval of 15 seconds.
static PeriodicTaskPoller	getInstance() Gets the single instance of the poller.
boolean	removeTask(PeriodicTask t) Remove a task.
void	run() This method is public because it implements runnable.

Methods inherited from class java.lang.Object

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

Field Detail

POLL_INTERVAL_SECONDS

public static int POLL_INTERVAL_SECONDS

Method Detail

getInstance

public static PeriodicTaskPoller getInstance()

Gets the single instance of the poller.

Returns:

The instance of PeriodicTaskPoller

addTask

public boolean addTask(PeriodicTask t)

Adds a task to be run at the specified interval of 15 seconds.

Parameters:

t - Task

Returns:

True if the task has been added, false if the task is already present

removeTask

public boolean removeTask(PeriodicTask t)

Remove a task.

Parameters:

t - Task to be removed

Returns:

true if the task is removed or false if it not present

run

public void run()

This method is public because it implements runnable. The runnable could have been an inner class.

Specified by:

run in interface Runnable