Package org.apache.hadoop.io.file.tfile

Enum Class Compression.Algorithm

java.lang.Object

java.lang.Enum<Compression.Algorithm>

org.apache.hadoop.io.file.tfile.Compression.Algorithm

All Implemented Interfaces:

Serializable, Comparable<Compression.Algorithm>, Constable

Enclosing class:

org.apache.hadoop.io.file.tfile.Compression

public static enum Compression.Algorithm
extends Enum<Compression.Algorithm>

Compression algorithms.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
GZ
LZO
NONE

Field Summary

Fields

Modifier and Type	Field	Description
protected static final Configuration	conf
static final String	CONF_LZO_CLASS

Method Summary

Modifier and Type	Method	Description
abstract OutputStream	createCompressionStream(OutputStream downStream, Compressor compressor, int downStreamBufferSize)
abstract InputStream	createDecompressionStream(InputStream downStream, Decompressor decompressor, int downStreamBufferSize)
Compressor	getCompressor()
Decompressor	getDecompressor()
String	getName()
abstract boolean	isSupported()
void	returnCompressor(Compressor compressor)
void	returnDecompressor(Decompressor decompressor)
static Compression.Algorithm	valueOf(String name)	Returns the enum constant of this class with the specified name.
static Compression.Algorithm[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

LZO

public static final Compression.Algorithm LZO

GZ

public static final Compression.Algorithm GZ

NONE

public static final Compression.Algorithm NONE

Field Details

conf

protected static final Configuration conf

CONF_LZO_CLASS

public static final String CONF_LZO_CLASS

See Also:

• Constant Field Values

Method Details

values

public static Compression.Algorithm[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static Compression.Algorithm valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null

createDecompressionStream

public abstract InputStream createDecompressionStream(InputStream downStream,
 Decompressor decompressor,
 int downStreamBufferSize)
                                               throws IOException

Throws:

IOException

createCompressionStream

public abstract OutputStream createCompressionStream(OutputStream downStream,
 Compressor compressor,
 int downStreamBufferSize)
                                              throws IOException

Throws:

IOException

isSupported

public abstract boolean isSupported()

getCompressor

public Compressor getCompressor()
                         throws IOException

Throws:

IOException

returnCompressor

public void returnCompressor(Compressor compressor)

getDecompressor

public Decompressor getDecompressor()
                             throws IOException

Throws:

IOException

returnDecompressor

public void returnDecompressor(Decompressor decompressor)

getName

public String getName()