rossi.fstools.fs.reiserfs
Class IndirectItem

java.lang.Object
  rossi.fstools.fs.reiserfs.Item
      rossi.fstools.fs.reiserfs.IndirectItem

public class IndirectItem

extends Item

Representation of an indirect item.

An indirect item is an array of 32 bit block pointers. The number of pointers is given by itemLength/4

Field Summary

protected int[]

ptrs

Fields inherited from class rossi.fstools.fs.reiserfs.Item

block, buffer, bufferOffset, header

Constructor Summary

IndirectItem(byte[] buffer, int bufferOffset, LeafNode block, ItemHead header)
Create an indirect item from the supplied buffer.

Method Summary

int[]	getEntries() Get the entries (pointers to blocks) contained within this item.
protected void	load() Load the block pointer array from the buffer.
int	numEntries() Get the number of entries (pointers to blocks) contained within this item.

Methods inherited from class rossi.fstools.fs.reiserfs.Item

getBlock, getBlockPointer, getBuffer, getBufferOffset, getHeader, getRawData, setBlock, setBuffer, setBufferOffset, setHeader

Methods inherited from class java.lang.Object

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

Field Detail

ptrs

protected int[] ptrs

Constructor Detail

IndirectItem

public IndirectItem(byte[] buffer,
                    int bufferOffset,
                    LeafNode block,
                    ItemHead header)
             throws FsException

Create an indirect item from the supplied buffer.

Parameters:

buffer - the buffer to load data from.

bufferOffset - offset within the buffer that data starts at

block - leaf block containing this item.

header - Item header for this item.

Method Detail

numEntries

public int numEntries()

Get the number of entries (pointers to blocks) contained within this item.

Returns:

number of entries.

getEntries

public int[] getEntries()

Get the entries (pointers to blocks) contained within this item.

Returns:

int[]

load

protected void load()
             throws FsException

Load the block pointer array from the buffer.

Throws:

FsException - if a pase error occurs.