Package org.soulwing.prospecto.jaxrs.runtime.discovery

Class ReflectionsReflectionService

java.lang.Object

org.soulwing.prospecto.jaxrs.runtime.discovery.ReflectionsReflectionService

All Implemented Interfaces:

ReflectionService

Direct Known Subclasses:

ServletContextReflectionService

public class ReflectionsReflectionService
extends Object
implements ReflectionService

A ReflectionService that delegates to the Reflections utility and the Java Reflection API.

Author:

Carl Harris

Constructor Summary

Constructors

Constructor	Description
ReflectionsReflectionService(org.reflections.Reflections reflections)	Constructs a new instance.

Method Summary

Modifier and Type	Method	Description
<A extends Annotation> A	getAnnotation(Class<?> subjectType, Class<A> annotationType)	Gets an annotation on a type.
<A extends Annotation> A	getAnnotation(Method subjectMethod, Class<A> annotationType)	Gets an annotation on a method.
Method[]	getMethods(Class<?> type)	Gets the public methods of the given type.
Class<?>	getReturnType(Method method)	Gets the return type of the given method.
<T> Set<Class<? extends T>>	getSubTypesOf(Class<T> type)	Gets the set of classes that are subtypes of a given type.
Set<Class<?>>	getTypesAnnotatedWith(Class<? extends Annotation> annotation)	Gets the set of classes that have a given (type-level) annotation.
boolean	isAbstractType(Class<?> type)	Tests whether the given type is an interface or abstract class.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectionsReflectionService

public ReflectionsReflectionService(org.reflections.Reflections reflections)

Constructs a new instance.

Parameters:

reflections -

Method Detail

getSubTypesOf

public <T> Set<Class<? extends T>> getSubTypesOf(Class<T> type)

Gets the set of classes that are subtypes of a given type.

Specified by:

getSubTypesOf in interface ReflectionService

Parameters:

type - the base type

Returns:

set of types that implement/extend type

getTypesAnnotatedWith

public Set<Class<?>> getTypesAnnotatedWith(Class<? extends Annotation> annotation)

Gets the set of classes that have a given (type-level) annotation.

Specified by:

getTypesAnnotatedWith in interface ReflectionService

Parameters:

annotation - the subject annotation

Returns:

set of classes

getAnnotation

public <A extends Annotation> A getAnnotation(Class<?> subjectType,
                                              Class<A> annotationType)

Gets an annotation on a type.

Specified by:

getAnnotation in interface ReflectionService

Type Parameters:

A - annotation type

Parameters:

subjectType - the subject type

annotationType - class representating the annotation type

Returns:

annotation instance or null if there is no annotation of type A on subjectType

getAnnotation

public <A extends Annotation> A getAnnotation(Method subjectMethod,
                                              Class<A> annotationType)

Gets an annotation on a method.

Specified by:

getAnnotation in interface ReflectionService

Type Parameters:

A - annotation type

Parameters:

subjectMethod - the subject method

annotationType - class representating the annotation type

Returns:

annotation instance or null if there is no annotation of type A on subjectType

isAbstractType

public boolean isAbstractType(Class<?> type)

Tests whether the given type is an interface or abstract class.

Specified by:

isAbstractType in interface ReflectionService

Parameters:

type - the subject type

Returns:

true if type is an interface or an abstract class

getMethods

public Method[] getMethods(Class<?> type)

Gets the public methods of the given type.

Specified by:

getMethods in interface ReflectionService

Parameters:

type - the subject type

Returns:

array containing the public methods of type

getReturnType

public Class<?> getReturnType(Method method)

Gets the return type of the given method.

Specified by:

getReturnType in interface ReflectionService

Parameters:

method - the subject method

Returns:

return type