io.nats.client

Class NUID

java.lang.Object

io.nats.client.NUID

public final class NUID
extends java.lang.Object

A highly performant unique identifier generator. The library uses this to generate an inbox for request-replies. Applications can use their own NUID to generate subjects as well. A shareable Global instance is also available via nextGlobal().

Constructor Summary

Constructors

Constructor and Description
NUID() The default NUID constructor.

Method Summary

Modifier and Type	Method and Description
java.lang.String	next() Generate the next NUID string from this instance.
static java.lang.String	nextGlobal()
static java.lang.String	nextGlobalSequence()
java.lang.String	nextSequence() Generate the next NUID string from this instance and return only the sequence portion.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NUID

public NUID()

The default NUID constructor. Relies on the OS Default instance of SecureRandom.

Throws:

java.lang.IllegalStateException - if the class cannot find the necessary SecureRandom instance.

Method Detail

nextGlobal

public static java.lang.String nextGlobal()

Returns:

the next NUID string from a shared global NUID instance

nextGlobalSequence

public static java.lang.String nextGlobalSequence()

Returns:

the next sequence portion of the NUID string from a shared global NUID instance

next

public java.lang.String next()

Generate the next NUID string from this instance.

Returns:

the next NUID string from this instance.

nextSequence

public java.lang.String nextSequence()

Generate the next NUID string from this instance and return only the sequence portion.

Returns:

the next sequence portion of the NUID string from a shared global NUID instance