org.apache.poi.hdgf.streams

Class CompressedStreamStore

java.lang.Object

org.apache.poi.hdgf.streams.StreamStore

org.apache.poi.hdgf.streams.CompressedStreamStore

public final class CompressedStreamStore
extends StreamStore

A StreamStore where the data on-disk is compressed, using the crazy Visio LZW

Method Summary

Modifier and Type	Method and Description
protected void	copyBlockHeaderToContents() Some kinds of streams expect their 4 byte header to be on the front of the contents.
static byte[][]	decompress(byte[] data, int offset, int length) Decompresses the given data, returning it as header + contents
static int	getMaxRecordLength()
static void	setMaxRecordLength(int length)

Methods inherited from class org.apache.poi.hdgf.streams.StreamStore

_getContents, getContents, prependContentsWith

Methods inherited from class java.lang.Object

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

Method Detail

setMaxRecordLength

public static void setMaxRecordLength(int length)

Parameters:

length - the max record length allowed for CompressedStreamStore

getMaxRecordLength

public static int getMaxRecordLength()

Returns:

the max record length allowed for CompressedStreamStore

copyBlockHeaderToContents

protected void copyBlockHeaderToContents()

Some kinds of streams expect their 4 byte header to be on the front of the contents. They can call this to have it sorted.

Overrides:

copyBlockHeaderToContents in class StreamStore

decompress

public static byte[][] decompress(byte[] data,
                                  int offset,
                                  int length)
                           throws java.io.IOException

Decompresses the given data, returning it as header + contents

Throws:

java.io.IOException