com.vaadin.flow.internal.

All Known Implementing Classes:

DevModeHandlerManagerImpl
```
public interface DevModeHandlerManager
```
Provides API to access to the DevModeHandler instance by a VaadinService.
For internal use only. May be renamed or removed in a future release.

Since:

Author:

Vaadin Ltd

Method Summary

All Methods
Modifier and Type	Method and Description
`DevModeHandler`	`getDevModeHandler()` Returns a `DevModeHandler` instance for the given `service`.
`static Optional<DevModeHandler>`	`getDevModeHandler(VaadinService service)` Create a `DevModeHandler` if factory available.
`Class<?>[]`	`getHandlesTypes()` A dev mode handler implementation is interested in certain annotations to be be scanned from the class path and passed to the `initDevModeHandler(Set, VaadinContext)` initializer.
`void`	`initDevModeHandler(Set<Class<?>> classes, VaadinContext context)` Starts up a new `DevModeHandler`.
`boolean`	`isDevModeAlreadyStarted(VaadinContext context)` Returns whether `DevModeHandler` has been already started or not.

- Method Detail
  - getHandlesTypes
```
Class<?>[] getHandlesTypes()
```
    A dev mode handler implementation is interested in certain annotations to be be scanned from the class path and passed to the initDevModeHandler(Set, VaadinContext) initializer.
    
    Returns:
    
    an array of types the dev mode handler is interested id.
  - initDevModeHandler
```
void initDevModeHandler(Set<Class<?>> classes,
                        VaadinContext context)
                 throws VaadinInitializerException
```
    Starts up a new DevModeHandler.
    
    Parameters:
    
    classes - classes to check for npm- and js modules
    
    context - servlet context we are running in
    
    Throws:
    
    VaadinInitializerException - if dev mode can't be initialized
  - getDevModeHandler
```
DevModeHandler getDevModeHandler()
```
    Returns a DevModeHandler instance for the given service.
    
    Returns:
    
    a DevModeHandler instance
  - isDevModeAlreadyStarted
```
boolean isDevModeAlreadyStarted(VaadinContext context)
```
    Returns whether DevModeHandler has been already started or not.
    
    Parameters:
    
    context - The VaadinContext, not null
    
    Returns:
    
    true if DevModeHandler has already been started, false - otherwise
  - getDevModeHandler
```
static Optional<DevModeHandler> getDevModeHandler(VaadinService service)
```
    Create a DevModeHandler if factory available.
    
    Parameters:
    
    service - a Vaadin service
    
    Returns:
    
    an Optional containing a DevModeHandler instance or EMPTY if disabled

com.vaadin.flow.internal.

Interface DevModeHandlerManager

Method Summary

Method Detail

getHandlesTypes

initDevModeHandler

getDevModeHandler

isDevModeAlreadyStarted

getDevModeHandler