stella.sensor

Class TimerTaskSensor.SensorRead

java.lang.Object

java.util.TimerTask

stella.sensor.TimerTaskSensor.SensorRead

All Implemented Interfaces:

Runnable

Enclosing class:

TimerTaskSensor

protected class TimerTaskSensor.SensorRead
extends TimerTask

The timer task helper class to allow this sensor to be scheduled via a Timer object. If multiple inheritance would be allowed, the timer task sensor could directly subclass a timer task.

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	running Lets a thread check, if another one is currently underway.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SensorRead() Constructs a new sensor read as a timer task.

Method Summary

Modifier and Type	Method and Description
void	run() Reads this sensor at a specified frequency.

Methods inherited from class java.util.TimerTask

cancel, scheduledExecutionTime

Methods inherited from class java.lang.Object

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

Field Detail

running

private boolean running

Lets a thread check, if another one is currently underway.

Constructor Detail

SensorRead

protected SensorRead()

Constructs a new sensor read as a timer task.

Method Detail

run

public void run()

Reads this sensor at a specified frequency. The thread can be stopped by calling its cancel() superclass-method.
This method calls the protected abstract method readSensor() of the embedding class, that actually converts the signal of the sensor to a double. Note that at times of high cpu-load of the system, the execution of the reading process may occur at non-equally spaced time intervalls.

Specified by:

run in interface Runnable

Specified by:

run in class TimerTask