de.weAut.demos

Interface RdGnPiGpioDBlinkMBean

All Known Implementing Classes:

RdGnPiGpioDBlink

public interface RdGnPiGpioDBlinkMBean

Program RdGnPiGpioDBlink's MBeans.

The test and demo program RdGnPiGpioDBlink makes use of a few Frame4J utilities and forsakes the benedictions gained by inheriting App.
As the (little) usage of Frame4J is redirected over PiUtil it is relatively simple to take the sources and isolate RdGnPiGpioDBlink completely from Frame4J if one wants a stand alone pigpioD with Java demo.

Nevertheless a little observation and control as MBean, e.g. via the utility JConsole/JMX is implemented.

Copyright © 2021 Albrecht Weinert

Version:

50 (4.06.2021)

Author:

Albrecht Weinert a-weinert.de

Method Summary

Modifier and Type	Method and Description
Integer	getCycCount() See the number of cycles.
Boolean	getLEDgn() The state of the green LED(s).
Boolean	getLEDrd() The state of the red LED(s).
Boolean	getLEDye() The state of the yellow LED(s).
Integer	getPiType() Get the Pi type.
void	setCycCount(Integer cycCount) Set the number of cycles.
void	stop() Stop the cycle loop.

Method Detail

getLEDye

Boolean getLEDye()

The state of the yellow LED(s).

The yellow LED(s) are inverted only once in a cycle.

Returns:

true when ON

getLEDrd

Boolean getLEDrd()

The state of the red LED(s).

The red LED(s) are inverted twice in a cycle.

Returns:

true when ON

getLEDgn

Boolean getLEDgn()

The state of the green LED(s).

The green LED(s) are inverted twice in a cycle.

Returns:

true when ON

stop

void stop()

Stop the cycle loop.

Invoked by JConsole e.g. this ends the otherwise endless loop and the program in a civilised manner. The forcible alternative of stopping the application by cntl-C would be, by the way, by grace of a shut down hook civilised, too.

getCycCount

Integer getCycCount()

See the number of cycles.

As the duration of one cycle is 600ms it would take more than 40 years to overflow to negative.
Note: Java has no unsigned number type. int is int32_t there is no uint32_t.

Returns:

the loop count

See Also:

setCycCount(Integer)

setCycCount

void setCycCount(Integer cycCount)

Set the number of cycles.

getPiType

Integer getPiType()

Get the Pi type.