superwaba.ext.xplat.zlib
Class ZLib

java.lang.Object
  |
  +--superwaba.ext.xplat.zlib.ZLib

public final class ZLib

extends java.lang.Object

This package implements stream compression with the ZLib library.

Field Summary

static int	BEST_COMPRESSION Compression level for best compression, which is 9 in a scale from 0 (less) to 9 (more).
static int	BEST_SPEED Compression level for fastest compression, which is 1 in a scale from 0 (less) to 9 (more).
static int	DEFAULT_COMPRESSION
static int	NO_COMPRESSION No compression, which is 0 in a scale from 0 (less) to 9 (more)

Method Summary

static int	deflate(int compressionLevel, Stream in, Stream out) deflate a stream.
static int	inflate(Stream in, Stream out) inflate a stream.

Methods inherited from class java.lang.Object

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

Field Detail

NO_COMPRESSION

public static final int NO_COMPRESSION

No compression, which is 0 in a scale from 0 (less) to 9 (more)

BEST_SPEED

public static final int BEST_SPEED

Compression level for fastest compression, which is 1 in a scale from 0 (less) to 9 (more).

BEST_COMPRESSION

public static final int BEST_COMPRESSION

Compression level for best compression, which is 9 in a scale from 0 (less) to 9 (more).

DEFAULT_COMPRESSION

public static final int DEFAULT_COMPRESSION

Method Detail

deflate

public static int deflate(int compressionLevel,
                          Stream in,
                          Stream out)

deflate a stream.

Parameters:

compressionLevel - wanted compression level

in - uncompressed input stream

out - compressed output stream

Returns:

size of the compressed stream or -1 if an error occurred

inflate

public static int inflate(Stream in,
                          Stream out)

inflate a stream.

Parameters:

in - compressed input stream

out - uncompressed output stream

Returns:

size of the uncompressed stream or -1 if an error occurred