edu.iu.dsc.tws.api.driver

Class NullScaler

java.lang.Object

edu.iu.dsc.tws.api.driver.NullScaler

All Implemented Interfaces:

IScalerPerCluster

public class NullScaler
extends java.lang.Object
implements IScalerPerCluster

Constructor Summary

Constructors

Constructor and Description
NullScaler()

Method Summary

Modifier and Type	Method and Description
boolean	isScalable() whether this job is scalable
boolean	scaleDownWorkers(int instancesToRemove, int numberOfWorkers) remove some instances of the workers from the job
boolean	scaleUpWorkers(int instancesToAdd) add new instances of workers to the job

Methods inherited from class java.lang.Object

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

Constructor Detail

NullScaler

public NullScaler()

Method Detail

isScalable

public boolean isScalable()

Description copied from interface: IScalerPerCluster

whether this job is scalable

Specified by:

isScalable in interface IScalerPerCluster

Returns:

true if scalable

scaleUpWorkers

public boolean scaleUpWorkers(int instancesToAdd)

Description copied from interface: IScalerPerCluster

add new instances of workers to the job

Specified by:

scaleUpWorkers in interface IScalerPerCluster

Returns:

true if successful

scaleDownWorkers

public boolean scaleDownWorkers(int instancesToRemove,
                                int numberOfWorkers)

Description copied from interface: IScalerPerCluster

remove some instances of the workers from the job

Specified by:

scaleDownWorkers in interface IScalerPerCluster

numberOfWorkers - number of workers before the scale down

Returns:

true if successful