Enum Class CompressionCodec

java.lang.Object

java.lang.Enum<CompressionCodec>

dev.hardwood.metadata.CompressionCodec

All Implemented Interfaces:

Serializable, Comparable<CompressionCodec>, Constable

public enum CompressionCodec
extends Enum<CompressionCodec>

Compression codecs supported by Parquet.

See Also:

• File Format – Compression
• parquet.thrift

Nested Class Summary

Nested classes/interfaces inherited from class Enum

Enum.EnumDesc<E>

Enum Constant Summary

Enum Constants

Enum Constant	Description
BROTLI	Brotli compression (high ratio).
GZIP	Gzip compression (slower, higher ratio).
LZ4	LZ4 compression (Hadoop framing).
LZ4_RAW	LZ4 raw block compression (no Hadoop framing).
LZO	LZO compression.
SNAPPY	Snappy compression (fast, moderate ratio).
UNCOMPRESSED	No compression.
ZSTD	Zstandard compression.

Method Summary

Modifier and Type	Method	Description
static CompressionCodec	valueOf(String name)	Returns the enum constant of this class with the specified name.
static CompressionCodec[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class Enum

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

Methods inherited from class Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

UNCOMPRESSED

public static final CompressionCodec UNCOMPRESSED

No compression.

SNAPPY

public static final CompressionCodec SNAPPY

Snappy compression (fast, moderate ratio).

GZIP

public static final CompressionCodec GZIP

Gzip compression (slower, higher ratio).

LZO

public static final CompressionCodec LZO

LZO compression.

BROTLI

public static final CompressionCodec BROTLI

Brotli compression (high ratio).

LZ4

public static final CompressionCodec LZ4

LZ4 compression (Hadoop framing).

ZSTD

public static final CompressionCodec ZSTD

Zstandard compression.

LZ4_RAW

public static final CompressionCodec LZ4_RAW

LZ4 raw block compression (no Hadoop framing).

Method Details

values

public static CompressionCodec[] 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 CompressionCodec 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