CompressedStreamStore (POI API Documentation)

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

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 Details
- 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 IOException
  
  Decompresses the given data, returning it as header + contents
  
  Throws:
  
  IOException