Package com.thewinterframework.utils.reflect

Class Reflections

java.lang.Object

com.thewinterframework.utils.reflect.Reflections

public class Reflections
extends Object

Utility class for reflection operations.

Constructor Summary

Constructors

Constructor	Description
Reflections()

Method Summary

Modifier and Type	Method	Description
static Annotation	findBindingAnnotation(AnnotatedElement element)	Finds the binding annotation of an element.
static <T extends Annotation> List<Annotation>	findClassAnnotations(Class<?> clazz, Class<T> metaAnnotation)	Finds all annotations of a class that are annotated with a specific meta-annotation.
static List<com.google.inject.Key<?>>	findMethodParameters(Method method)	Finds the parameters of a method.
static <T extends Annotation> List<AnnotatedMethodHandle<T>>	findMethodsWith(Class<?> clazz, Class<T> annotation)	Finds all methods in a class that are annotated with a specific annotation, or with an annotation that is itself annotated with that annotation (meta-annotation).
static Type	getGenericType(Class<?> clazz, Class<?> interfaze, int index)	Gets the generic type of class that implements an interface.
static Object[]	injectKeys(Class<?> instance, List<com.google.inject.Key<?>> keys, com.google.inject.Injector injector)	Injects the keys into the injector and returns the objects.
static Class<?>	toClass(Type type)	Converts a type to a class.

Methods inherited from class java.lang.Object

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

Constructor Details

Reflections

public Reflections()

Method Details

findMethodsWith

public static <T extends Annotation>
List<AnnotatedMethodHandle<T>> findMethodsWith(Class<?> clazz,
 Class<T> annotation)
                                        throws IllegalAccessException,
NoSuchMethodException

Finds all methods in a class that are annotated with a specific annotation, or with an annotation that is itself annotated with that annotation (meta-annotation).

Type Parameters:

T - The annotation type.

Parameters:

clazz - The class to search in.

annotation - The annotation or meta-annotation to search for.

Returns:

A list of annotated method handles.

Throws:

IllegalAccessException - If the method cannot be accessed.

NoSuchMethodException - If the method does not exist.

findClassAnnotations

public static <T extends Annotation>
List<Annotation> findClassAnnotations(Class<?> clazz,
 Class<T> metaAnnotation)

Finds all annotations of a class that are annotated with a specific meta-annotation.

Type Parameters:

T - The annotation type.

Parameters:

clazz - The class to get the annotations from.

metaAnnotation - The meta-annotation to get the annotations from.

Returns:

The annotations.

findMethodParameters

public static List<com.google.inject.Key<?>> findMethodParameters(Method method)

Finds the parameters of a method.

Parameters:

method - The method to find the parameters of.

Returns:

A list of keys representing the parameters.

injectKeys

public static Object[] injectKeys(Class<?> instance,
 List<com.google.inject.Key<?>> keys,
 com.google.inject.Injector injector)

Injects the keys into the injector and returns the objects.

Parameters:

instance - The instance to inject the keys into.

keys - The keys to inject.

injector - The injector to get the instances from.

Returns:

The objects.

getGenericType

public static Type getGenericType(Class<?> clazz,
 Class<?> interfaze,
 int index)

Gets the generic type of class that implements an interface.

Parameters:

clazz - The class to get the generic type from.

interfaze - The interface to get the generic type from.

index - The index of the generic type.

Returns:

The generic type.

toClass

public static Class<?> toClass(Type type)

Converts a type to a class.

Parameters:

type - The type to convert.

Returns:

The class.

findBindingAnnotation

public static Annotation findBindingAnnotation(AnnotatedElement element)

Finds the binding annotation of an element.

Parameters:

element - The element to find the binding annotation of.

Returns:

The binding annotation.