loci.poi.poifs.property

Class PropertyTable

java.lang.Object

loci.poi.poifs.property.PropertyTable

All Implemented Interfaces:

BATManaged, BlockWritable

public class PropertyTable
extends Object
implements BATManaged, BlockWritable

This class embodies the Property Table for the filesystem; this is basically the dsirectory for all of the documents in the filesystem.

Author:

Marc Johnson (mjohnson at apache dot org)

Field Summary

Fields

Modifier and Type	Field and Description
private BlockWritable[]	_blocks
private List	_properties
private int	_start_block

Constructor Summary

Constructors

Constructor and Description
PropertyTable() Default constructor
PropertyTable(int startBlock, RawDataBlockList blockList) reading constructor (used when we've read in a file and we want to extract the property table from it).

Method Summary

Methods

Modifier and Type	Method and Description
void	addProperty(Property property) Add a property to the list of properties we manage
int	countBlocks() Return the number of BigBlock's this instance uses
RootProperty	getRoot() Get the root property
int	getStartBlock() Get the start block for the property table
private void	populatePropertyTree(DirectoryProperty root)
void	preWrite() Prepare to be written
void	removeProperty(Property property) Remove a property from the list of properties we manage
void	setStartBlock(int index) Set the start block for this instance
void	writeBlocks(OutputStream stream) Write the storage to an OutputStream

Methods inherited from class java.lang.Object

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

Field Detail

_start_block

private int _start_block

_properties

private List _properties

_blocks

private BlockWritable[] _blocks

Constructor Detail

PropertyTable

public PropertyTable()

Default constructor

PropertyTable

public PropertyTable(int startBlock,
             RawDataBlockList blockList)
              throws IOException

reading constructor (used when we've read in a file and we want to extract the property table from it). Populates the properties thoroughly

Parameters:

startBlock - the first block of the property table

blockList - the list of blocks

Throws:

IOException - if anything goes wrong (which should be a result of the input being NFG)

Method Detail

addProperty

public void addProperty(Property property)

Add a property to the list of properties we manage

Parameters:

property - the new Property to manage

removeProperty

public void removeProperty(Property property)

Remove a property from the list of properties we manage

Parameters:

property - the Property to be removed

getRoot

public RootProperty getRoot()

Get the root property

Returns:

the root property

preWrite

public void preWrite()

Prepare to be written

getStartBlock

public int getStartBlock()

Get the start block for the property table

Returns:

start block index

populatePropertyTree

private void populatePropertyTree(DirectoryProperty root)
                           throws IOException

Throws:

IOException

countBlocks

public int countBlocks()

Return the number of BigBlock's this instance uses

Specified by:

countBlocks in interface BATManaged

Returns:

count of BigBlock instances

setStartBlock

public void setStartBlock(int index)

Set the start block for this instance

Specified by:

setStartBlock in interface BATManaged

Parameters:

index - index into the array of BigBlock instances making up the the filesystem

writeBlocks

public void writeBlocks(OutputStream stream)
                 throws IOException

Write the storage to an OutputStream

Specified by:

writeBlocks in interface BlockWritable

Parameters:

stream - the OutputStream to which the stored data should be written

Throws:

IOException - on problems writing to the specified stream