org.apache.hadoop.io.file.tfile

Enum 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>

Enclosing class:

Compression

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

Compression algorithms.

Enum Constant Summary

Enum Constants

Enum Constant and Description
GZ
LZO
NONE

Field Summary

Fields

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

Method Summary

Modifier and Type	Method and 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 type with the specified name.
static Compression.Algorithm[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

LZO

public static final Compression.Algorithm LZO

GZ

public static final Compression.Algorithm GZ

NONE

public static final Compression.Algorithm NONE

Field Detail

conf

protected static final Configuration conf

CONF_LZO_CLASS

public static final String CONF_LZO_CLASS

See Also:

Constant Field Values

Method Detail

values

public static Compression.Algorithm[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (Compression.Algorithm c : Compression.Algorithm.values())
    System.out.println(c);

Returns:

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

valueOf

public static Compression.Algorithm valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (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 type 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()