jxl.read.biff
Class File

java.lang.Object
  |
  +--jxl.read.biff.File

public class File

extends java.lang.Object

File containing the data from the binary stream

Field Summary

private int	arrayGrowSize The amount to increase the growable array by
private byte[]	data The data from the excel 97 file
private int	initialFileSize The initial file size
private int	oldPos The saved pos
private int	pos The current position within the file

Constructor Summary

File(java.io.InputStream is, WorkbookSettings ws)
Constructs a file from the input stream

Method Summary

void	clear() Clears the contents of the file
void	close() Deprecated. As of version 1.6 use workbook.close() instead
int	getPos() Gets the position in the stream
boolean	hasNext() Determines if the current position exceeds the end of the file
private void	moveToFirstBof() Moves to the first bof in the file
(package private) Record	next() Returns the next data record and increments the pointer
(package private) Record	peek()
byte[]	read(int pos, int length) Copies the bytes into a new array and returns it.
void	restorePos() Restores the original position These methods are used by the SheetImpl.readSheet() when it is reading in all the cell values
void	setPos(int p) Saves the current position and temporarily sets the position to be the new one.
void	skip(int bytes) Skips forward the specified number of bytes

Methods inherited from class java.lang.Object

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

Field Detail

data

private byte[] data

The data from the excel 97 file

pos

private int pos

The current position within the file

oldPos

private int oldPos

The saved pos

initialFileSize

private int initialFileSize

The initial file size

arrayGrowSize

private int arrayGrowSize

The amount to increase the growable array by

Constructor Detail

File

public File(java.io.InputStream is,
            WorkbookSettings ws)
     throws java.io.IOException,
            BiffException

Constructs a file from the input stream

Parameters:

is - the input stream

Throws:

java.io.IOException -

BiffException -

Method Detail

next

Record next()

Returns the next data record and increments the pointer

Returns:

the next data record

peek

Record peek()

skip

public void skip(int bytes)

Skips forward the specified number of bytes

Parameters:

bytes - the number of bytes to skip forward

read

public byte[] read(int pos,
                   int length)

Copies the bytes into a new array and returns it.

Parameters:

pos - the position to read from

length - the number of bytes to read

Returns:

The bytes read

getPos

public int getPos()

Gets the position in the stream

Returns:

the position in the stream

setPos

public void setPos(int p)

Saves the current position and temporarily sets the position to be the new one. The original position may be restored usind the restorePos() method. This is used when reading in the cell values of the sheet - an addition in 1.6 for memory allocation reasons. These methods are used by the SheetImpl.readSheet() when it is reading in all the cell values

Parameters:

pos - the temporary position

restorePos

public void restorePos()

Restores the original position These methods are used by the SheetImpl.readSheet() when it is reading in all the cell values

moveToFirstBof

private void moveToFirstBof()

Moves to the first bof in the file

close

public void close()

Deprecated. As of version 1.6 use workbook.close() instead

"Closes" the biff file

clear

public void clear()

Clears the contents of the file

hasNext

public boolean hasNext()

Determines if the current position exceeds the end of the file

Returns:

TRUE if there is more data left in the array, FALSE otherwise