Package jmri.jmrix.loconet.sdf

Class SdfBuffer

java.lang.Object

jmri.jmrix.loconet.sdf.SdfBuffer

public class SdfBuffer
extends Object

Provide tools for reading, writing and accessing Digitrax SPJ files.

Maintains several representations:

• A byte array of the SDF contents after assembly. This is not complete, as it can't contain information like contents, labels, etc. Nor can it distinguish certain options with identical values (e.g. several constants that boil down to a zero value)
• An array of nested SdfMacro objects. These contain more detailed representations of the macro source, in the limit containing the entire thing.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) byte[]	buffer
protected int	index
(package private) ArrayList<SdfMacro>	ops

Constructor Summary

Constructors

Constructor	Description
SdfBuffer(byte[] buffer)
SdfBuffer(String name)

Method Summary

Modifier and Type	Method	Description
int	getAtIndex()
int	getAtIndexAndInc()
byte[]	getByteArray()
List<SdfMacro>	getMacroList()
void	loadByteArray()	Reload the byte buffer from the contained instruction objects
(package private) void	loadMacroList()
boolean	moreData()
void	resetIndex()
void	setAtIndex(int data)
void	setAtIndexAndInc(int data)
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

index

protected int index

ops

ArrayList<SdfMacro> ops

buffer

byte[] buffer

Constructor Details

SdfBuffer

public SdfBuffer(byte[] buffer)

SdfBuffer

public SdfBuffer(String name)
          throws IOException

Throws:

IOException

Method Details

resetIndex

public void resetIndex()

getAtIndex

public int getAtIndex()

getAtIndexAndInc

public int getAtIndexAndInc()

moreData

public boolean moreData()

setAtIndex

public void setAtIndex(int data)

setAtIndexAndInc

public void setAtIndexAndInc(int data)

loadByteArray

public void loadByteArray()

Reload the byte buffer from the contained instruction objects

toString

public String toString()

Overrides:

toString in class Object

getByteArray

public byte[] getByteArray()

getMacroList

public List<SdfMacro> getMacroList()

loadMacroList

void loadMacroList()