com.cloudhopper.commons.util

Class Sequencer

java.lang.Object

com.cloudhopper.commons.util.Sequencer

public class Sequencer
extends Object

This class implements an extremely efficient, thread-safe way to generate a simple incrementing sequence of Longs. This class safely resets the sequence back to zero to prevent overflow. Internally uses the AtomicLong class.

Author:

joelauer (twitter: @jjlauer or http://twitter.com/jjlauer)

Constructor Summary

Constructors

Constructor and Description
Sequencer() Constructs a new instance of Sequencer a default starting sequence number of 0.
Sequencer(long startingValue) Constructs a new instance of Sequencer with the specified starting value.

Method Summary

Methods

Modifier and Type	Method and Description
long	next()

Methods inherited from class java.lang.Object

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

Constructor Detail

Sequencer

public Sequencer()

Constructs a new instance of Sequencer a default starting sequence number of 0.

Sequencer

public Sequencer(long startingValue)

Constructs a new instance of Sequencer with the specified starting value.

Method Detail

next

public long next()