Package org.rocksdb

Enum Class ReusedSynchronisationType

java.lang.Object

java.lang.Enum<ReusedSynchronisationType>

org.rocksdb.ReusedSynchronisationType

All Implemented Interfaces:

Serializable, Comparable<ReusedSynchronisationType>, Constable

public enum ReusedSynchronisationType
extends Enum<ReusedSynchronisationType>

Determines the type of synchronisation primitive used in native code.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
ADAPTIVE_MUTEX	Use adaptive mutex, which spins in the user space before resorting to kernel.
MUTEX	Standard mutex.
THREAD_LOCAL	There is a reused buffer per-thread.

Method Summary

Modifier and Type	Method	Description
static ReusedSynchronisationType	getReusedSynchronisationType(byte value)	Get ReusedSynchronisationType by byte value.
byte	getValue()	Returns the byte value of the enumerations value
static ReusedSynchronisationType	valueOf(String name)	Returns the enum constant of this class with the specified name.
static ReusedSynchronisationType[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

MUTEX

public static final ReusedSynchronisationType MUTEX

Standard mutex.

ADAPTIVE_MUTEX

public static final ReusedSynchronisationType ADAPTIVE_MUTEX

Use adaptive mutex, which spins in the user space before resorting to kernel. This could reduce context switch when the mutex is not heavily contended. However, if the mutex is hot, we could end up wasting spin time.

THREAD_LOCAL

public static final ReusedSynchronisationType THREAD_LOCAL

There is a reused buffer per-thread.

Method Details

values

public static ReusedSynchronisationType[] 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 ReusedSynchronisationType 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

getValue

public byte getValue()

Returns the byte value of the enumerations value

Returns:

byte representation

getReusedSynchronisationType

public static ReusedSynchronisationType getReusedSynchronisationType(byte value)

Get ReusedSynchronisationType by byte value.

Parameters:

value - byte representation of ReusedSynchronisationType.

Returns:

ReusedSynchronisationType instance.

Throws:

IllegalArgumentException - if an invalid value is provided.