com.ibm.tivoli.maximo.skd.applet.util

Class DelayedActionManager<T>

java.lang.Object

com.ibm.tivoli.maximo.skd.applet.util.DelayedActionManager<T>

Type Parameters:

T - Type that would be returned from the doInBackground() method

public abstract class DelayedActionManager<T>
extends java.lang.Object

Performs an action after a given amount of delay. The doInBackground() method is invoked in the background and the runOnUI() is invoked on the UI thread AFTER the background task completes. This differs from a SwingWorker in that a DelayedActionManager can be executed multiple times, but the background process will not start until AFTER the wait period has expired. For example, if you create a Delayed Action Manager with a wait time of 700ms, then when execute() is called, it will wait 700ms before calling doInBackground(). If after 300ms (ie, we have 400ms left) we call execute() again, then then the the timer is reset and we wait another 700ms before calling doInBackground(). This primary use base for this is a case where we may have some repetitive actions being performed, such as a user typing in a text box, or a user dragging an object, but we only only want to do the main background task once there is a pause. Much like a SwingWorker, you'd want to do your long running, non ui work, in the background, and then ONLY update the UI in the runOnUI() method

Author:

sls

Constructor Summary

Constructors

Constructor and Description
DelayedActionManager(long waitFor) Creates a new DelayedActionManager that waits for waitFor ms before executing its doInBackground task

Method Summary

Methods

Modifier and Type	Method and Description
void	execute() Execute the task (ie, doInBackground() and runOnUI()).

Methods inherited from class java.lang.Object

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

Constructor Detail

DelayedActionManager

public DelayedActionManager(long waitFor)

Creates a new DelayedActionManager that waits for waitFor ms before executing its doInBackground task

Parameters:

waitFor - number ms to wait until be do the main task

Method Detail

execute

public void execute()

Execute the task (ie, doInBackground() and runOnUI()). Ececute may be called multiple times, each time you call it, it will reset its wait period from that point.