Package org.cloudsimplus.autoscaling.resources

Interface ResourceScaling

All Known Implementing Classes:
ResourceScalingGradual, ResourceScalingInstantaneous
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface
public interface ResourceScaling
A FunctionalInterface to define how the capacity of the resource to be scaled by a VerticalVmScaling will be resized, according to the defined scaling factor.

The interval in which the under and overload conditions are checked is defined by the Datacenter.getSchedulingInterval(). This way, during one interval and another, there may be some SLA violation if the resource is overloaded between these intervals.

There are some implementations of this functional interface such as ResourceScalingGradual and ResourceScalingInstantaneous. New ones can be defined using Lambda Expressions.

Since:
CloudSim 1.2.0
Author:
Manoel Campos da Silva Filho
See Also:
ResourceScalingGradual, ResourceScalingInstantaneous

  • Field Summary

    Fields 
    Modifier and Type Field Description
    static ResourceScaling NULL
    An attribute that implements the Null Object Design Pattern for ResourceScaling objects.

  • Method Summary

    Modifier and Type Method Description
    double getResourceAmountToScale​(VerticalVmScaling vmScaling)
    Computes the amount of resource to scale up or down, depending if the resource is over or underloaded, respectively.