org.xerial.snappy

Class SnappyNative

java.lang.Object

org.xerial.snappy.SnappyNative

All Implemented Interfaces:

SnappyNativeAPI

public class SnappyNative
extends java.lang.Object
implements SnappyNativeAPI

JNI interface of the SnappyNativeAPI implementation. The native method in this class is defined in SnappyNative.h (genereted by javah) and SnappyNative.cpp NEVER USE THIS CLASS DIRECTLY since it breaks the native library code loading.

Author:

leo

Constructor Summary

Constructors

Constructor and Description
SnappyNative()

Method Summary

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

Specified by:

nativeLibraryVersion in interface SnappyNativeAPI

rawCompress

public int rawCompress(java.nio.ByteBuffer input,
                       int inputOffset,
                       int inputLength,
                       java.nio.ByteBuffer compressed,
                       int outputOffset)
                throws java.io.IOException

Specified by:

rawCompress in interface SnappyNativeAPI

Throws:

java.io.IOException

rawCompress

public int rawCompress(java.lang.Object input,
                       int inputOffset,
                       int inputByteLength,
                       java.lang.Object output,
                       int outputOffset)

Specified by:

rawCompress in interface SnappyNativeAPI

rawUncompress

public int rawUncompress(java.nio.ByteBuffer compressed,
                         int inputOffset,
                         int inputLength,
                         java.nio.ByteBuffer uncompressed,
                         int outputOffset)
                  throws java.io.IOException

Specified by:

rawUncompress in interface SnappyNativeAPI

Throws:

java.io.IOException

rawUncompress

public int rawUncompress(java.lang.Object input,
                         int inputOffset,
                         int inputLength,
                         java.lang.Object output,
                         int outputOffset)
                  throws java.io.IOException

Specified by:

rawUncompress in interface SnappyNativeAPI

Throws:

java.io.IOException

maxCompressedLength

public int maxCompressedLength(int source_bytes)

Specified by:

maxCompressedLength in interface SnappyNativeAPI

uncompressedLength

public int uncompressedLength(java.nio.ByteBuffer compressed,
                              int offset,
                              int len)
                       throws java.io.IOException

Specified by:

uncompressedLength in interface SnappyNativeAPI

Throws:

java.io.IOException

uncompressedLength

public int uncompressedLength(java.lang.Object input,
                              int offset,
                              int len)
                       throws java.io.IOException

Specified by:

uncompressedLength in interface SnappyNativeAPI

Throws:

java.io.IOException

isValidCompressedBuffer

public boolean isValidCompressedBuffer(java.nio.ByteBuffer compressed,
                                       int offset,
                                       int len)
                                throws java.io.IOException

Specified by:

isValidCompressedBuffer in interface SnappyNativeAPI

Throws:

java.io.IOException

isValidCompressedBuffer

public boolean isValidCompressedBuffer(java.lang.Object input,
                                       int offset,
                                       int len)
                                throws java.io.IOException

Specified by:

isValidCompressedBuffer in interface SnappyNativeAPI

Throws:

java.io.IOException

arrayCopy

public void arrayCopy(java.lang.Object src,
                      int offset,
                      int byteLength,
                      java.lang.Object dest,
                      int dOffset)
               throws java.io.IOException

Specified by:

arrayCopy in interface SnappyNativeAPI

Throws:

java.io.IOException

throw_error

public void throw_error(int errorCode)
                 throws java.io.IOException

Specified by:

throw_error in interface SnappyNativeAPI

Throws:

java.io.IOException