Package jmri.jmrix.rfid

Class RfidMessage

java.lang.Object

jmri.jmrix.AbstractMessage

jmri.jmrix.AbstractMRMessage

jmri.jmrix.rfid.RfidMessage

All Implemented Interfaces:

Message

Direct Known Subclasses:

ConcentratorMessage, StandaloneMessage

public abstract class RfidMessage
extends AbstractMRMessage

Contains the data payload of a serial packet.

The transmission protocol can come in one of several forms:

• If the interlocked parameter is false (default), the packet is just sent. If the response length is not zero, a reply of that length is expected.
• If the interlocked parameter is true, the transmission will require a CRC interlock, which will be automatically added. (Design note: this is done to make sure that the messages remain atomic)

Since:

2.11.4

Field Summary

Fields

Modifier and Type	Field	Description
(package private) boolean	interlocked
(package private) int	responseLength

Fields inherited from class jmri.jmrix.AbstractMRMessage

LONG_TIMEOUT, SHORT_TIMEOUT

Fields inherited from class jmri.jmrix.AbstractMessage

_dataChars, _nDataChars

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	RfidMessage()	Suppress the default ctor, as the length must always be specified
	RfidMessage(byte[] a, int l)	This ctor interprets the byte array as a sequence of characters to send.
	RfidMessage(int l)
	RfidMessage(String m, int l)	This ctor interprets the String as the exact sequence to send, byte-for-byte.

Method Summary

Modifier and Type	Method	Description
boolean	getInterlocked()
int	getResponseLength()	Returns the length of an expected response
void	setInterlocked(boolean v)
void	setResponseLength(int l)	Sets the length of an expected response

Methods inherited from class jmri.jmrix.AbstractMRMessage

addIntAsFourHex, addIntAsThree, addIntAsThreeHex, addIntAsTwoHex, getNeededMode, getOpCode, getOpCodeHex, getRetries, getTimeout, isBinary, replyExpected, setBinary, setNeededMode, setOpCode, setRetries, setTimeout, toString

Methods inherited from class jmri.jmrix.AbstractMessage

equals, getElement, getNumDataElements, hashCode, setElement

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface jmri.jmrix.Message

toMonitorString

Field Details

interlocked

boolean interlocked

responseLength

int responseLength

Constructor Details

RfidMessage

protected RfidMessage()

Suppress the default ctor, as the length must always be specified

RfidMessage

public RfidMessage(int l)

RfidMessage

public RfidMessage(String m, int l)

This ctor interprets the String as the exact sequence to send, byte-for-byte.

Parameters:

m - String to send

l - length of expected response

RfidMessage

public RfidMessage(byte[] a, int l)

This ctor interprets the byte array as a sequence of characters to send.

Parameters:

a - Array of bytes to send

l - length of expected response

Method Details

setInterlocked

public void setInterlocked(boolean v)

getInterlocked

public boolean getInterlocked()

setResponseLength

public final void setResponseLength(int l)

Sets the length of an expected response

Parameters:

l - length of expected response

getResponseLength

public int getResponseLength()

Returns the length of an expected response

Returns:

length of expected response