io.druid.segment.data

Enum CompressedObjectStrategy.CompressionStrategy

java.lang.Object

java.lang.Enum<CompressedObjectStrategy.CompressionStrategy>

io.druid.segment.data.CompressedObjectStrategy.CompressionStrategy

All Implemented Interfaces:

Serializable, Comparable<CompressedObjectStrategy.CompressionStrategy>

Enclosing class:

CompressedObjectStrategy<T extends Buffer>

public static enum CompressedObjectStrategy.CompressionStrategy
extends Enum<CompressedObjectStrategy.CompressionStrategy>

Compression strategy is used to compress block of bytes without knowledge of what data the bytes represents. When adding compression strategy, do not use id in the range [0x7C, 0xFD] (greater than 123 or less than -2), since a flag mechanism is used in CompressionFactory that involves subtracting the value 126 from the compression id (see CompressionFactory.FLAG_BOUND)

Enum Constant Summary

Enum Constants

Enum Constant and Description
LZ4
LZF
NONE
UNCOMPRESSED

Method Summary

Modifier and Type	Method and Description
static CompressedObjectStrategy.CompressionStrategy	forId(byte id)
static CompressedObjectStrategy.CompressionStrategy	fromString(String name)
abstract CompressedObjectStrategy.Compressor	getCompressor()
abstract CompressedObjectStrategy.Decompressor	getDecompressor()
byte	getId()
static CompressedObjectStrategy.CompressionStrategy[]	noNoneValues()
String	toString()
static CompressedObjectStrategy.CompressionStrategy	valueOf(String name) Returns the enum constant of this type with the specified name.
static CompressedObjectStrategy.CompressionStrategy[]	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, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

LZF

public static final CompressedObjectStrategy.CompressionStrategy LZF

LZ4

public static final CompressedObjectStrategy.CompressionStrategy LZ4

UNCOMPRESSED

public static final CompressedObjectStrategy.CompressionStrategy UNCOMPRESSED

NONE

public static final CompressedObjectStrategy.CompressionStrategy NONE

Method Detail

values

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

Returns:

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

valueOf

public static CompressedObjectStrategy.CompressionStrategy 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

getId

public byte getId()

getCompressor

public abstract CompressedObjectStrategy.Compressor getCompressor()

getDecompressor

public abstract CompressedObjectStrategy.Decompressor getDecompressor()

toString

public String toString()

Overrides:

toString in class Enum<CompressedObjectStrategy.CompressionStrategy>

fromString

public static CompressedObjectStrategy.CompressionStrategy fromString(String name)

forId

public static CompressedObjectStrategy.CompressionStrategy forId(byte id)

noNoneValues

public static CompressedObjectStrategy.CompressionStrategy[] noNoneValues()