org.junit.jupiter.engine.descriptor

Class ExtensionUtils

java.lang.Object

org.junit.jupiter.engine.descriptor.ExtensionUtils

final class ExtensionUtils
extends java.lang.Object

Collection of utilities for working with extensions and the extension registry.

Since:

5.1

See Also:

ExtensionRegistry, ExtendWith, RegisterExtension

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
(package private) static class	ExtensionUtils.IsNonStaticExtensionField
(package private) static class	ExtensionUtils.IsStaticExtensionField

Field Summary

Fields

Modifier and Type	Field and Description
private static java.util.function.Predicate<java.lang.reflect.Field>	isNonStaticExtension
private static java.util.function.Predicate<java.lang.reflect.Field>	isStaticExtension
private static java.util.Comparator<java.lang.reflect.Field>	orderComparator

Constructor Summary

Constructors

Modifier	Constructor and Description
private	ExtensionUtils()

Method Summary

Modifier and Type	Method and Description
private static int	getOrder(java.lang.reflect.Field field)
(package private) static ExtensionRegistry	populateNewExtensionRegistryFromExtendWithAnnotation(ExtensionRegistry parentRegistry, java.lang.reflect.AnnotatedElement annotatedElement) Populate a new ExtensionRegistry from extension types declared via @ExtendWith on the supplied AnnotatedElement.
(package private) static void	registerExtensionsFromFields(ExtensionRegistry registry, java.lang.Class<?> clazz, java.lang.Object instance) Register extensions in the supplied registry from fields in the supplied class that are annotated with @RegisterExtension.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

isStaticExtension

private static final java.util.function.Predicate<java.lang.reflect.Field> isStaticExtension

isNonStaticExtension

private static final java.util.function.Predicate<java.lang.reflect.Field> isNonStaticExtension

orderComparator

private static final java.util.Comparator<java.lang.reflect.Field> orderComparator

Since:

5.4

Constructor Detail

ExtensionUtils

private ExtensionUtils()

Method Detail

populateNewExtensionRegistryFromExtendWithAnnotation

static ExtensionRegistry populateNewExtensionRegistryFromExtendWithAnnotation(ExtensionRegistry parentRegistry,
                                                                              java.lang.reflect.AnnotatedElement annotatedElement)

Populate a new ExtensionRegistry from extension types declared via @ExtendWith on the supplied AnnotatedElement.

Parameters:

parentRegistry - the parent extension registry to set in the newly created registry; never null

annotatedElement - the annotated element on which to search for declarations of @ExtendWith; never null

Returns:

the new extension registry; never null

Since:

5.0

registerExtensionsFromFields

static void registerExtensionsFromFields(ExtensionRegistry registry,
                                         java.lang.Class<?> clazz,
                                         java.lang.Object instance)

Register extensions in the supplied registry from fields in the supplied class that are annotated with @RegisterExtension.

The extensions will be sorted according to @Order semantics prior to registration.

Parameters:

registry - the registry in which to register the extensions; never null

clazz - the class or interface in which to find the fields; never null

instance - the instance of the supplied class; may be null when searching for static fields in the class

getOrder

private static int getOrder(java.lang.reflect.Field field)

Since:

5.4