stella.roof
Class Blinker.SwitchTask

java.lang.Object
  java.util.TimerTask
      stella.roof.Blinker.SwitchTask

All Implemented Interfaces:

Runnable

Enclosing class:

Blinker

private class Blinker.SwitchTask
extends TimerTask

A timer task class that writes a string to the serial line. If the command strings for switching on and off a light are alternated a flashing light signal results. Note that this class assumes the RS485 server to be up and working.

Field Summary

private boolean

action The string to write to the serial port.

Constructor Summary

protected

Blinker.SwitchTask(boolean cmd) Constructs a new switch task.

Method Summary

void	run() Writes the switch command to the serial port.

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

action

private boolean action

The string to write to the serial port.

Constructor Detail

Blinker.SwitchTask

protected Blinker.SwitchTask(boolean cmd)

Constructs a new switch task. The appropriate switch command is handed over as the argument.

Method Detail

run

public void run()

Writes the switch command to the serial port. If this write fails, no action is undertaken. This is to avoid message-log overflooding.

Specified by:

run in interface Runnable

Specified by:

run in class TimerTask