org.springframework.data.hadoop.store.codec
Enum Codecs

java.lang.Object
  java.lang.Enum<Codecs>
      org.springframework.data.hadoop.store.codec.Codecs

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<Codecs>

public enum Codecs
extends java.lang.Enum<Codecs>

Default codecs supported by store framework. We keep codec info here for implementations which are supported out of the box. Reference to codec is a fully qualified name of a class, not a class itself. This allows user to define and use codecs which are added into a classpath unknown during the compilation time.

This enum also allows case insensitive lookup for main abbreviation. Defined abbreviations strings in a constructor are just keywords to do back mapping from a lookup table. Registering a mixing abbreviations is not checked.

Codecs.get("gzip").getAbbreviation(); -> "GZIP"

Author:

Janne Valkealahti

Enum Constant Summary

BZIP2
Splittable BZip2Codec.

GZIP
Non-splittable GzipCodec.

LZO
Non-splittable LzoCodec.

LZOP
Non-splittable LzopCodec.

SLZO
Splittable LzoCodec.

SLZOP
Splittable LzoCodec.

SNAPPY
Non-splittable SnappyCodec.

Method Summary

static Codecs	get(java.lang.String abbreviation) Gets the Codecs by its abbreviation.
java.lang.String	getAbbreviation() Gets the main abbreviation.
java.lang.String[]	getAbbreviations() Gets the abbreviations.
CodecInfo	getCodecInfo() Gets the codec info.
static CodecInfo	getCodecInfo(java.lang.String abbreviation) Gets the CodecInfo by Codecs abbreviation.
static Codecs	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static Codecs[]	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

GZIP

public static final Codecs GZIP

Non-splittable GzipCodec.

SNAPPY

public static final Codecs SNAPPY

Non-splittable SnappyCodec. This codec will need native snappy libraries.

BZIP2

public static final Codecs BZIP2

Splittable BZip2Codec.

LZO

public static final Codecs LZO

Non-splittable LzoCodec. This codec should be based on implementation from http://code.google.com/p/hadoop-gpl-compression.

SLZO

public static final Codecs SLZO

Splittable LzoCodec. This codec should be based on implementation from http://github.com/kevinweil/hadoop-lzo.

LZOP

public static final Codecs LZOP

Non-splittable LzopCodec. This codec should be based on implementation from http://code.google.com/p/hadoop-gpl-compression.

SLZOP

public static final Codecs SLZOP

Splittable LzoCodec. This codec should be based on implementation from http://github.com/kevinweil/hadoop-lzo.

Method Detail

values

public static Codecs[] 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 (Codecs c : Codecs.values())
    System.out.println(c);

Returns:

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

valueOf

public static Codecs valueOf(java.lang.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:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

getCodecInfo

public CodecInfo getCodecInfo()

Gets the codec info.

Returns:

the codec info

getAbbreviation

public java.lang.String getAbbreviation()

Gets the main abbreviation.

Returns:

the main abbreviation

getAbbreviations

public java.lang.String[] getAbbreviations()

Gets the abbreviations.

Returns:

the abbreviations

get

public static Codecs get(java.lang.String abbreviation)

Gets the Codecs by its abbreviation. Lookup returns NULL if abbreviation hasn't been registered.

Parameters:

abbreviation - the abbreviation

Returns:

the codecs resulted as a lookup

getCodecInfo

public static CodecInfo getCodecInfo(java.lang.String abbreviation)

Gets the CodecInfo by Codecs abbreviation. Lookup returns NULL if abbreviation hasn't been registered.

Parameters:

abbreviation - the abbreviation

Returns:

the codec info resulted as a lookup

See Also:

get(String)