ControllerRegistrationHandler (Charba - J2CL and GWT charts library based on CHART.JS)

```
public interface ControllerRegistrationHandler
```
This interface enables the capability to be before and after a controller will be registered.

Author:

Andrea "Stock" Stocchero

Method Summary

All Methods Instance Methods Default Methods
Modifier and Type	Method	Description
`default void`	`onAfterRegister(ControllerType controllerType, boolean registered)`	Invoked after the controller is registered to CHART.JS.
`default void`	`onBeforeRegister(ControllerType controllerType)`	Invoked before the controller will be register to CHART.JS.

- Method Detail
  - onBeforeRegister
```
default void onBeforeRegister(ControllerType controllerType)
```
    Invoked before the controller will be register to CHART.JS.
    
    Parameters:
    
    controllerType - the controller type which is registering
  - onAfterRegister
```
default void onAfterRegister(ControllerType controllerType,
                             boolean registered)
```
    Invoked after the controller is registered to CHART.JS.
    
    Parameters:
    
    controllerType - the controller type which is registering
    
    registered - true if the controller has been registered otherwise false