Package jmri.jmrix

Class AbstractMessage

java.lang.Object

jmri.jmrix.AbstractMessage

All Implemented Interfaces:

Message

Direct Known Subclasses:

AbstractMRMessage, AbstractMRReply, LocoNetMessage, QsiMessage, QsiReply

public abstract class AbstractMessage
extends Object
implements Message

Base for various message implementations used by the various abstract TrafficController classes.

Field Summary

Fields

Modifier and Type	Field	Description
protected int[]	_dataChars
protected int	_nDataChars

Constructor Summary

Constructors

Constructor	Description
AbstractMessage()	Create a new instance of AbstractMessage.
AbstractMessage(int n)	Create a new instance of AbstractMessage of a given byte size.
AbstractMessage(String s)
AbstractMessage(AbstractMessage m)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)	Equals operator compares only base data.
int	getElement(int n)	Get a particular element in a Message.
int	getNumDataElements()	Get the number of data elements in a Message.
int	hashCode()	Hash code from base data.
void	setElement(int n, int v)	Set a single Data Element at a particular index.

Methods inherited from class java.lang.Object

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

Methods inherited from interface jmri.jmrix.Message

toMonitorString, toString

Field Details

_dataChars

protected int[] _dataChars

_nDataChars

protected int _nDataChars

Constructor Details

AbstractMessage

public AbstractMessage()

Create a new instance of AbstractMessage.

AbstractMessage

public AbstractMessage(int n)

Create a new instance of AbstractMessage of a given byte size.

Parameters:

n - number of elements

AbstractMessage

public AbstractMessage(String s)

AbstractMessage

public AbstractMessage(@Nonnull
 AbstractMessage m)

Method Details

getElement

public int getElement(int n)

Get a particular element in a Message.

Specified by:

getElement in interface Message

Parameters:

n - Element Index.

Returns:

single element of message.

getNumDataElements

public int getNumDataElements()

Get the number of data elements in a Message.

Specified by:

getNumDataElements in interface Message

Returns:

number elements.

setElement

public void setElement(int n,
 int v)

Set a single Data Element at a particular index.

Specified by:

setElement in interface Message

Parameters:

n - index of element.

v - value of element.

equals

public boolean equals(Object obj)

Equals operator compares only base data.

Overrides:

equals in class Object

hashCode

public int hashCode()

Hash code from base data.

Overrides:

hashCode in class Object

Returns:

hashcode from sum of elements.