ExtensionRegistry (JUnit 5.5.2 API)

All Known Implementing Classes:

MutableExtensionRegistry
```
@API(status=INTERNAL,
     since="5.0")
public interface ExtensionRegistry
```
An ExtensionRegistry holds all registered extensions (i.e. instances of Extension) for a given Node.

Since:

5.0

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default <E extends Extension> List<E>`	`getExtensions(Class<E> extensionType)`	Get all `Extensions` of the specified type that are present in this registry or one of its ancestors.
`default <E extends Extension> List<E>`	`getReversedExtensions(Class<E> extensionType)`	Get all `Extensions` of the specified type that are present in this registry or one of its ancestors, in reverse order.
`<E extends Extension> Stream<E>`	`stream(Class<E> extensionType)`	Stream all `Extensions` of the specified type that are present in this registry or one of its ancestors.

- Method Detail
  - stream
```
<E extends Extension> Stream<E> stream(Class<E> extensionType)
```
    Stream all Extensions of the specified type that are present in this registry or one of its ancestors.
    
    Parameters:
    
    extensionType - the type of Extension to stream
    
    See Also:
    
    getReversedExtensions(Class), getExtensions(Class)
  - getExtensions
```
default <E extends Extension> List<E> getExtensions(Class<E> extensionType)
```
    Get all Extensions of the specified type that are present in this registry or one of its ancestors.
    
    Parameters:
    
    extensionType - the type of Extension to get
    
    See Also:
    
    getReversedExtensions(Class), stream(Class)
  - getReversedExtensions
```
default <E extends Extension> List<E> getReversedExtensions(Class<E> extensionType)
```
    Get all Extensions of the specified type that are present in this registry or one of its ancestors, in reverse order.
    
    Parameters:
    
    extensionType - the type of Extension to get
    
    See Also:
    
    getExtensions(Class), stream(Class)