net.openhft.chronicle.bytes

Enum MappedUniqueTimeProvider

java.lang.Object

java.lang.Enum<MappedUniqueTimeProvider>

net.openhft.chronicle.bytes.MappedUniqueTimeProvider

All Implemented Interfaces:

Serializable, Comparable<MappedUniqueTimeProvider>, net.openhft.chronicle.core.io.ReferenceOwner, net.openhft.chronicle.core.time.TimeProvider

public enum MappedUniqueTimeProvider
extends Enum<MappedUniqueTimeProvider>
implements net.openhft.chronicle.core.time.TimeProvider, net.openhft.chronicle.core.io.ReferenceOwner

Provides timestamps that are guaranteed to be unique across threads and processes on a single machine.

This class utilizes a shared timestamp file, named with the user's name and located in a defined directory, to ensure the uniqueness of timestamps. By default, the file is located in the system's temporary directory.

Each timestamp generated by an instance of this class is globally unique, making it ideal for synchronization and ordering across different threads and processes.

Enum Constant Summary

Enum Constants

Enum Constant and Description
INSTANCE

Field Summary

Fields inherited from interface net.openhft.chronicle.core.io.ReferenceOwner

INIT, TMP

Method Summary

Modifier and Type	Method and Description
long	currentTimeMicros()
long	currentTimeMillis()
long	currentTimeNanos()
MappedUniqueTimeProvider	provider(net.openhft.chronicle.core.time.TimeProvider provider)
static MappedUniqueTimeProvider	valueOf(String name) Returns the enum constant of this type with the specified name.
static MappedUniqueTimeProvider[]	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

Methods inherited from interface net.openhft.chronicle.core.io.ReferenceOwner

referenceId, referenceName, temporary

Enum Constant Detail

INSTANCE

public static final MappedUniqueTimeProvider INSTANCE

Method Detail

values

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

Returns:

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

valueOf

public static MappedUniqueTimeProvider 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

provider

public MappedUniqueTimeProvider provider(net.openhft.chronicle.core.time.TimeProvider provider)

currentTimeMillis

public long currentTimeMillis()

Specified by:

currentTimeMillis in interface net.openhft.chronicle.core.time.TimeProvider

Returns:

Ordinary millisecond timestamp

currentTimeMicros

public long currentTimeMicros()
                       throws IllegalStateException

Specified by:

currentTimeMicros in interface net.openhft.chronicle.core.time.TimeProvider

Throws:

IllegalStateException

currentTimeNanos

public long currentTimeNanos()
                      throws IllegalStateException

Specified by:

currentTimeNanos in interface net.openhft.chronicle.core.time.TimeProvider

Throws:

IllegalStateException