H2 Database Engine 2.3.232 · org.h2.compress.Compressor

Field Summary

Modifier and Type	Field and Description
public static final int	DEFLATE The DEFLATE compression algorithm is used.
public static final int	LZF The LZF compression algorithm is used
public static final int	NO No compression is used.

Modifier and Type	Method and Description
public int	Returns: the end position compress(byte[] the input data in, int the offset at the input array inPos, int the number of bytes to compress inLen, byte[] the output area out, int the offset at the output array outPos) Compress a number of bytes.
public void	expand(byte[] the compressed data in, int the offset at the input array inPos, int the number of bytes to read inLen, byte[] the output area out, int the offset at the output array outPos, int the size of the uncompressed data outLen) Expand a number of compressed bytes.
public int	Returns: the type getAlgorithm() Get the compression algorithm type.
public void	setOptions(String the options options) Set the compression options.

DEFLATE	back to summary
public static final int DEFLATE The DEFLATE compression algorithm is used.

LZF	back to summary
public static final int LZF The LZF compression algorithm is used

NO	back to summary
public static final int NO No compression is used.

compress	back to summary
public int compress(byte[] in, int inPos, int inLen, byte[] out, int outPos) Compress a number of bytes. Parameters in:byte[] the input data inPos:int the offset at the input array inLen:int the number of bytes to compress out:byte[] the output area outPos:int the offset at the output array Returns:int the end position

compress

public int compress(byte[] in, int inPos, int inLen, byte[] out, int outPos)

Compress a number of bytes.

Parameters

Returns:int

the end position

expand	back to summary
public void expand(byte[] in, int inPos, int inLen, byte[] out, int outPos, int outLen) Expand a number of compressed bytes. Parameters in:byte[] the compressed data inPos:int the offset at the input array inLen:int the number of bytes to read out:byte[] the output area outPos:int the offset at the output array outLen:int the size of the uncompressed data

expand

public void expand(byte[] in, int inPos, int inLen, byte[] out, int outPos, int outLen)

Expand a number of compressed bytes.

Parameters

getAlgorithm	back to summary
public int getAlgorithm() Get the compression algorithm type. Returns:int the type

getAlgorithm

public int getAlgorithm()

Get the compression algorithm type.

setOptions	back to summary
public void setOptions(String options) Set the compression options. This may include settings for higher performance but less compression. Parameters options:String the options

setOptions

public void setOptions(String options)

Set the compression options. This may include settings for higher performance but less compression.

Parameters