Package jmri.jmrix.maple

Class SerialNode

java.lang.Object

jmri.jmrix.AbstractNode

jmri.jmrix.maple.SerialNode

public class SerialNode
extends AbstractNode

Models a serial node, consisting of one Maple Systems HMI touch screen panel.

Nodes are numbered ala the Station number, from 1 to 99.

The array of sensor states is used to update sensor known state only when there's a change on the serial bus. This allows for the sensor state to be updated within the program, keeping this updated state until the next change on the serial bus. E.g. you can manually change a state via an icon, and not have it change back the next time that node is polled.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static final int	MAXSENSORS	Maximum number of sensors for Maple.
(package private) int	timeout
(package private) boolean	warned

Fields inherited from class jmri.jmrix.AbstractNode

nodeAddress

Constructor Summary

Constructors

Constructor	Description
SerialNode(int address, int type, SerialTrafficController tc)	Create a new SerialNode and initialize default instance variables.
SerialNode(SerialTrafficController tc)	Assumes a node address of 1, and a node type of 0.

Method Summary

Modifier and Type	Method	Description
protected boolean	checkNodeAddress(int address)	Check valid node address, must match value configured in the Maple HMI.
AbstractMRMessage	createInitPacket()	Create an Initialization packet (SerialMessage) for this node.
AbstractMRMessage	createOutPacket()	Create a Transmit packet (SerialMessage).
int	getAddress()	Get this node's address.
boolean	getSensorsActive()	Get state of Sensors.
int	getTimeoutCount()
boolean	handleTimeout(AbstractMRMessage m, AbstractMRListener l)	Deal with a timeout in the transmission controller.
void	resetTimeout(AbstractMRMessage m)	A reply was received, so there was no timeout, do any needed processing.
(package private) void	warn(String s)

Methods inherited from class jmri.jmrix.AbstractNode

getNodeAddress, mustSend, resetMustSend, setMustSend, setNodeAddress

Methods inherited from class java.lang.Object

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

Field Details

MAXSENSORS

static final int MAXSENSORS

Maximum number of sensors for Maple.

See Also:

• Constant Field Values

warned

boolean warned

timeout

int timeout

Constructor Details

SerialNode

public SerialNode(SerialTrafficController tc)

Assumes a node address of 1, and a node type of 0. If this constructor is used, actual node address must be set using setNodeAddress.

Parameters:

tc - serial traffic controller.

SerialNode

public SerialNode(int address,
 int type,
 SerialTrafficController tc)

Create a new SerialNode and initialize default instance variables.

Parameters:

address - Address of node on serial bus (0-99)

type - 0 (ignored)

tc - system traffic controller.

Method Details

getSensorsActive

public boolean getSensorsActive()

Get state of Sensors.

Specified by:

getSensorsActive in class AbstractNode

Returns:

'true' since at least one sensor is defined

checkNodeAddress

protected boolean checkNodeAddress(int address)

Check valid node address, must match value configured in the Maple HMI.

Specified by:

checkNodeAddress in class AbstractNode

Parameters:

address - node ID, allowed values are 1-99

Returns:

true if in valid range

getAddress

public int getAddress()

Get this node's address.

Returns:

node address.

createInitPacket

public AbstractMRMessage createInitPacket()

Create an Initialization packet (SerialMessage) for this node.

Note: Maple Systems devices do not need initialization. This is here for completion.

Specified by:

createInitPacket in class AbstractNode

Returns:

the packet, or 'null' if not needed

createOutPacket

public AbstractMRMessage createOutPacket()

Create a Transmit packet (SerialMessage). Not used in Maple.

Specified by:

createOutPacket in class AbstractNode

Returns:

packet to send current node state.

warn

void warn(String s)

handleTimeout

public boolean handleTimeout(AbstractMRMessage m,
 AbstractMRListener l)

Deal with a timeout in the transmission controller.

Specified by:

handleTimeout in class AbstractNode

Parameters:

m - message that didn't receive a reply

l - listener that sent the message

Returns:

true if initialization required

resetTimeout

public void resetTimeout(AbstractMRMessage m)

Description copied from class: AbstractNode

A reply was received, so there was no timeout, do any needed processing.

Specified by:

resetTimeout in class AbstractNode

Parameters:

m - message received that has reset the timeout and is waiting to be handled

getTimeoutCount

public int getTimeoutCount()