com.vaadin.flow.component.internal.UIInternalUpdater API 23.1.17 | Vaadin

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com.vaadin.flow.component.internal.

All Superinterfaces:

Serializable
```
public interface UIInternalUpdater
extends Serializable
```
The implementation of this interface is responsible for updating the UI with given content.
For internal use only. May be renamed or removed in a future release.

Method Summary

All Methods
Modifier and Type	Method	Description
`default void`	`moveToNewUI(UI oldUI, UI newUI)`	Move all the children from the old UI to the new UI.
`default void`	`updateRoot(UI ui, HasElement oldRoot, HasElement newRoot)`	Update root element of the given UI.

- Method Detail
  - updateRoot
```
default void updateRoot(UI ui,
                        HasElement oldRoot,
                        HasElement newRoot)
```
    Update root element of the given UI.
    
    Parameters:
    
    ui - the UI to be updated
    
    oldRoot - the old root to be removed
    
    newRoot - the new root to be added
  - moveToNewUI
```
default void moveToNewUI(UI oldUI,
                         UI newUI)
```
    Move all the children from the old UI to the new UI.
    
    Parameters:
    
    oldUI - the old UI whose children will be transferred to new UI
    
    newUI - the new UI where children of the old UI will be landed