org.apache.ignite.configuration

Enum DiskPageCompression

java.lang.Object

java.lang.Enum<DiskPageCompression>

org.apache.ignite.configuration.DiskPageCompression

All Implemented Interfaces:

Serializable, Comparable<DiskPageCompression>

public enum DiskPageCompression
extends Enum<DiskPageCompression>

Disk page compression options.

See Also:

DataStorageConfiguration.setWalPageCompression(org.apache.ignite.configuration.DiskPageCompression), DataStorageConfiguration.setWalPageCompressionLevel(java.lang.Integer)

Enum Constant Summary

Enum Constants

Enum Constant and Description
DISABLED Compression disabled.
LZ4 LZ4 compression.
SKIP_GARBAGE Retain only useful data from half-filled pages, but do not apply any compression.
SNAPPY Snappy compression.
ZSTD Zstd compression.

Method Summary

Modifier and Type	Method and Description
static @Nullable DiskPageCompression	fromOrdinal(int ord) Efficiently gets enumerated value from its ordinal.
static DiskPageCompression	valueOf(String name) Returns the enum constant of this type with the specified name.
static DiskPageCompression[]	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

DISABLED

public static final DiskPageCompression DISABLED

Compression disabled.

SKIP_GARBAGE

public static final DiskPageCompression SKIP_GARBAGE

Retain only useful data from half-filled pages, but do not apply any compression.

ZSTD

public static final DiskPageCompression ZSTD

Zstd compression.

LZ4

public static final DiskPageCompression LZ4

LZ4 compression.

SNAPPY

public static final DiskPageCompression SNAPPY

Snappy compression.

Method Detail

values

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

Returns:

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

valueOf

public static DiskPageCompression 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

fromOrdinal

@Nullable
public static @Nullable DiskPageCompression fromOrdinal(int ord)

Efficiently gets enumerated value from its ordinal.

Parameters:

ord - Ordinal value.

Returns:

Enumerated value or null if ordinal out of range.