com.github.f4b6a3.uuid.nodeid

Class CombNodeIdentifierStrategy

java.lang.Object

com.github.f4b6a3.uuid.nodeid.CombNodeIdentifierStrategy

All Implemented Interfaces:

NodeIdentifierStrategy

public class CombNodeIdentifierStrategy
extends Object
implements NodeIdentifierStrategy

Constructor Summary

Constructors

Constructor and Description
CombNodeIdentifierStrategy()

Method Summary

Modifier and Type	Method and Description
long	getNodeIdentifier() Returns the count of milliseconds since 01-01-1970.

Methods inherited from class java.lang.Object

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

Constructor Detail

CombNodeIdentifierStrategy

public CombNodeIdentifierStrategy()

Method Detail

getNodeIdentifier

public long getNodeIdentifier()

Returns the count of milliseconds since 01-01-1970. The node identifier is a 48-bit value. This timestamp is the difference, measured in milliseconds, between the current time and midnight, January 1, 1970 UTC. The the time value rolls over around AD 10,889.

 s = 1000;
 m = 60 * s;
 h = 60 * m;
 d = 24 * h;
 y = 365.25 * d;
 2^48 / y = ~8919
 8919 + 1970 = 10889
 

Specified by:

getNodeIdentifier in interface NodeIdentifierStrategy