org.xerial.snappy

Class SnappyNative

java.lang.Object

org.xerial.snappy.SnappyNative

All Implemented Interfaces:

SnappyApi

public class SnappyNative
extends Object
implements SnappyApi

JNI interface of the Snappy implementation. The native method in this class is defined in SnappyNative.h (genereted by javah) and SnappyNative.cpp

DO NOT USE THIS CLASS since the direct use of this class might break the native library code loading in SnappyLoader.

Author:

leo

Constructor Summary

Constructors

Constructor and Description
SnappyNative()

Method Summary

Modifier and Type	Method and Description
void	arrayCopy(Object src, int offset, int byteLength, Object dest, int dOffset)
boolean	isValidCompressedBuffer(ByteBuffer compressed, int offset, int len)
boolean	isValidCompressedBuffer(long inputAddr, long offset, long len)
boolean	isValidCompressedBuffer(Object input, int offset, int len)
int	maxCompressedLength(int source_bytes)
String	nativeLibraryVersion()
int	rawCompress(ByteBuffer input, int inputOffset, int inputLength, ByteBuffer compressed, int outputOffset)
long	rawCompress(long inputAddr, long inputSize, long destAddr)
int	rawCompress(Object input, int inputOffset, int inputByteLength, Object output, int outputOffset)
int	rawUncompress(ByteBuffer compressed, int inputOffset, int inputLength, ByteBuffer uncompressed, int outputOffset)
long	rawUncompress(long inputAddr, long inputSize, long destAddr)
int	rawUncompress(Object input, int inputOffset, int inputLength, Object output, int outputOffset)
void	throw_error(int errorCode)
int	uncompressedLength(ByteBuffer compressed, int offset, int len)
long	uncompressedLength(long inputAddr, long len)
int	uncompressedLength(Object input, int offset, int len)

Methods inherited from class java.lang.Object

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

Constructor Detail

SnappyNative

public SnappyNative()

Method Detail

nativeLibraryVersion

public String nativeLibraryVersion()

rawCompress

public long rawCompress(long inputAddr,
                        long inputSize,
                        long destAddr)
                 throws IOException

Specified by:

rawCompress in interface SnappyApi

Throws:

IOException

rawUncompress

public long rawUncompress(long inputAddr,
                          long inputSize,
                          long destAddr)
                   throws IOException

Specified by:

rawUncompress in interface SnappyApi

Throws:

IOException

rawCompress

public int rawCompress(ByteBuffer input,
                       int inputOffset,
                       int inputLength,
                       ByteBuffer compressed,
                       int outputOffset)
                throws IOException

Specified by:

rawCompress in interface SnappyApi

Throws:

IOException

rawCompress

public int rawCompress(Object input,
                       int inputOffset,
                       int inputByteLength,
                       Object output,
                       int outputOffset)
                throws IOException

Specified by:

rawCompress in interface SnappyApi

Throws:

IOException

rawUncompress

public int rawUncompress(ByteBuffer compressed,
                         int inputOffset,
                         int inputLength,
                         ByteBuffer uncompressed,
                         int outputOffset)
                  throws IOException

Specified by:

rawUncompress in interface SnappyApi

Throws:

IOException

rawUncompress

public int rawUncompress(Object input,
                         int inputOffset,
                         int inputLength,
                         Object output,
                         int outputOffset)
                  throws IOException

Specified by:

rawUncompress in interface SnappyApi

Throws:

IOException

maxCompressedLength

public int maxCompressedLength(int source_bytes)

Specified by:

maxCompressedLength in interface SnappyApi

uncompressedLength

public int uncompressedLength(ByteBuffer compressed,
                              int offset,
                              int len)
                       throws IOException

Specified by:

uncompressedLength in interface SnappyApi

Throws:

IOException

uncompressedLength

public int uncompressedLength(Object input,
                              int offset,
                              int len)
                       throws IOException

Specified by:

uncompressedLength in interface SnappyApi

Throws:

IOException

uncompressedLength

public long uncompressedLength(long inputAddr,
                               long len)
                        throws IOException

Specified by:

uncompressedLength in interface SnappyApi

Throws:

IOException

isValidCompressedBuffer

public boolean isValidCompressedBuffer(ByteBuffer compressed,
                                       int offset,
                                       int len)
                                throws IOException

Specified by:

isValidCompressedBuffer in interface SnappyApi

Throws:

IOException

isValidCompressedBuffer

public boolean isValidCompressedBuffer(Object input,
                                       int offset,
                                       int len)
                                throws IOException

Specified by:

isValidCompressedBuffer in interface SnappyApi

Throws:

IOException

isValidCompressedBuffer

public boolean isValidCompressedBuffer(long inputAddr,
                                       long offset,
                                       long len)
                                throws IOException

Specified by:

isValidCompressedBuffer in interface SnappyApi

Throws:

IOException

arrayCopy

public void arrayCopy(Object src,
                      int offset,
                      int byteLength,
                      Object dest,
                      int dOffset)
               throws IOException

Specified by:

arrayCopy in interface SnappyApi

Throws:

IOException

throw_error

public void throw_error(int errorCode)
                 throws IOException

Throws:

IOException