org.apache.poi.hdgf.chunks
Class ChunkHeader

java.lang.Object
  org.apache.poi.hdgf.chunks.ChunkHeader

Direct Known Subclasses:

ChunkHeaderV4V5, ChunkHeaderV6

public abstract class ChunkHeader
extends java.lang.Object

A chunk header

Field Summary

protected int	id
protected int	length
protected int	type
protected int	unknown1

Constructor Summary

ChunkHeader()

Method Summary

static ChunkHeader	createChunkHeader(int documentVersion, byte[] data, int offset) Creates the appropriate ChunkHeader for the Chunk Header at the given location, for the given document version.
static int	getHeaderSize(int documentVersion) Returns the size of a chunk header for the given document version.
int	getId() Returns the ID/IX of the chunk
int	getLength() Returns the length of the trunk, excluding the length of the header, trailer or separator.
abstract int	getSizeInBytes()
int	getType() Returns the type of the chunk, which affects the mandatory information
int	getUnknown1()
abstract boolean	hasSeparator()
abstract boolean	hasTrailer()

Methods inherited from class java.lang.Object

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

Field Detail

type

protected int type

id

protected int id

length

protected int length

unknown1

protected int unknown1

Constructor Detail

ChunkHeader

public ChunkHeader()

Method Detail

createChunkHeader

public static ChunkHeader createChunkHeader(int documentVersion,
                                            byte[] data,
                                            int offset)

Creates the appropriate ChunkHeader for the Chunk Header at the given location, for the given document version.

getHeaderSize

public static int getHeaderSize(int documentVersion)

Returns the size of a chunk header for the given document version.

getSizeInBytes

public abstract int getSizeInBytes()

hasTrailer

public abstract boolean hasTrailer()

hasSeparator

public abstract boolean hasSeparator()

getId

public int getId()

Returns the ID/IX of the chunk

getLength

public int getLength()

Returns the length of the trunk, excluding the length of the header, trailer or separator.

getType

public int getType()

Returns the type of the chunk, which affects the mandatory information

getUnknown1

public int getUnknown1()