org.xerial.snappy

Class SnappyLoader

java.lang.Object

org.xerial.snappy.SnappyLoader

public class SnappyLoader
extends java.lang.Object

This class loads a native library of snappy-java (snappyjava.dll, libsnappy.so, etc.) according to the user platform (os.name and os.arch). The natively compiled libraries bundled to snappy-java contain the codes of the original snappy and JNI programs to access Snappy. In default, no configuration is required to use snappy-java, but you can load your own native library created by 'make native' command. LoadSnappy searches for native libraries (snappyjava.dll, libsnappy.so, etc.) in the following order:

1. (System property: org.xerial.snappy.lib.path)/(System property: org.xerial.lib.name)
2. One of the libraries embedded in snappy-java-(version).jar extracted into (System property: java.io.tempdir or if org.xerial.snappy.tempdir is set, use this folder.)
3. Folders specified by java.lib.path system property (This is the default path that JVM searches for native libraries)

If you do not want to use folder java.io.tempdir, set the System property org.xerial.snappy.tempdir. For example, to use /tmp/leo as a temporary folder to copy native libraries, use -D option of JVM:

 
 java -Dorg.xerial.snappy.tempdir="/tmp/leo" ...
 
 

Author:

leo

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	KEY_SNAPPY_DISABLE_BUNDLED_LIBS
static java.lang.String	KEY_SNAPPY_LIB_NAME
static java.lang.String	KEY_SNAPPY_LIB_PATH
static java.lang.String	KEY_SNAPPY_TEMPDIR

Constructor Summary

Constructors

Constructor and Description
SnappyLoader()

Method Summary

Modifier and Type	Method and Description
static int	getMajorVersion()
static int	getMinorVersion()
static java.lang.String	getVersion()
static boolean	isNativeLibraryLoaded()

Methods inherited from class java.lang.Object

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

Field Detail

KEY_SNAPPY_LIB_PATH

public static final java.lang.String KEY_SNAPPY_LIB_PATH

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Constant Field Values

KEY_SNAPPY_LIB_NAME

public static final java.lang.String KEY_SNAPPY_LIB_NAME

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Constant Field Values

KEY_SNAPPY_TEMPDIR

public static final java.lang.String KEY_SNAPPY_TEMPDIR

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Constant Field Values

KEY_SNAPPY_DISABLE_BUNDLED_LIBS

public static final java.lang.String KEY_SNAPPY_DISABLE_BUNDLED_LIBS

See Also:

Constant Field Values

Constructor Detail

SnappyLoader

public SnappyLoader()

Method Detail

isNativeLibraryLoaded

public static boolean isNativeLibraryLoaded()

getMajorVersion

public static int getMajorVersion()

getMinorVersion

public static int getMinorVersion()

getVersion

public static java.lang.String getVersion()