Package com.yahoo.vespa.config.server

Class SuperModelGenerationCounter

java.lang.Object

com.yahoo.vespa.config.server.SuperModelGenerationCounter

All Implemented Interfaces:

com.yahoo.vespa.config.GenerationCounter

public class SuperModelGenerationCounter
extends Object
implements com.yahoo.vespa.config.GenerationCounter

Distributed global generation counter for the super model.

Author:

Ulf Lilleengen

Constructor Summary

Constructors

Constructor	Description
SuperModelGenerationCounter(com.yahoo.vespa.curator.Curator curator)

Method Summary

Modifier and Type	Method	Description
long	get()
long	increment()	Increment counter and return next value.

Methods inherited from class java.lang.Object

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

Constructor Details

SuperModelGenerationCounter

public SuperModelGenerationCounter(com.yahoo.vespa.curator.Curator curator)

Method Details

increment

public long increment()

Increment counter and return next value. This method is thread safe and provides an atomic value across zookeeper clusters.

Specified by:

increment in interface com.yahoo.vespa.config.GenerationCounter

Returns:

incremented counter value.

get

public long get()

Specified by:

get in interface com.yahoo.vespa.config.GenerationCounter

Returns:

current counter value.