RescalingController (Flink : Runtime 1.18.1-cp1 API)

All Known Implementing Classes:

EnforceMinimalIncreaseRescalingController
```
@Internal
public interface RescalingController
```
Simple policy for controlling the scale up/down behavior of the AdaptiveScheduler.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`shouldRescale(VertexParallelism currentParallelism, VertexParallelism newParallelism)`	This method gets called whenever new resources or `resource requirements` are available and the scheduler needs to design whether to rescale or not.

- Method Detail
  - shouldRescale
```
boolean shouldRescale(VertexParallelism currentParallelism,
                      VertexParallelism newParallelism)
```
    This method gets called whenever new resources or resource requirements are available and the scheduler needs to design whether to rescale or not.
    
    Parameters:
    
    currentParallelism - parallelism of the currently running job graph.
    
    newParallelism - Potential new parallelism with the additional resources.
    
    Returns:
    
    true if the policy decided to rescale based on the provided information.