io.cdap.wrangler.api

Class SUID

java.lang.Object

io.cdap.wrangler.api.SUID

public final class SUID
extends Object

This class SUID creates a unique 64-bit ID with capacity to generate around 64K unique ids within a millisecond.

Method Summary

Modifier and Type	Method and Description
static long	nextId() Creates a unique 64 bits ID by aggregating the current time in milliseconds since epoch (Jan.

Methods inherited from class java.lang.Object

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

Method Detail

nextId

public static long nextId()

Creates a unique 64 bits ID by aggregating the current time in milliseconds since epoch (Jan. 1, 1970) and using a 16 bits counter. The counter is initialized at a random number. This generator can create up to 65536 different id per millisecond.

Returns:

a new id.