com.github.mjeanroy.junit.servers.commons.reflect

Class Reflections

java.lang.Object

com.github.mjeanroy.junit.servers.commons.reflect.Reflections

public final class Reflections
extends Object

Static reflection utilities.

Internal API: these methods are part of the internal API and may be removed, have their signature change, or have their access level decreased from public to protected, package, or private in future versions without notice.

Method Summary

Modifier and Type	Method and Description
static List<Field>	findAllFields(Class<?> type) Get all fields on given object and look for fields of super classes.
static List<Field>	findStaticFieldsAnnotatedWith(Class<?> type, Class<? extends Annotation> annotationClass) Get all static fields on given class object annotated with given annotation.
static List<Method>	findStaticMethodsAnnotatedWith(Class<?> type, Class<? extends Annotation> annotationClass) Get all static methods on given class object annotated with given annotation.
static <T> T	getter(Field field) Get value of static field.
static <T> T	getter(Object target, Field field) Get value of field on target object.
static <T> T	invoke(Method method) Invoke the static method without any arguments.
static void	setter(Object instance, Field field, Object value) Set value of given field on given instance.

Methods inherited from class java.lang.Object

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

Method Detail

findAllFields

public static List<Field> findAllFields(Class<?> type)

Get all fields on given object and look for fields of super classes.

Parameters:

type - Class to inspect.

Returns:

Fields.

findStaticFieldsAnnotatedWith

public static List<Field> findStaticFieldsAnnotatedWith(Class<?> type,
                                                        Class<? extends Annotation> annotationClass)

Get all static fields on given class object annotated with given annotation.

Parameters:

type - Class to inspect.

annotationClass - Annotation class.

Returns:

Fields.

findStaticMethodsAnnotatedWith

public static List<Method> findStaticMethodsAnnotatedWith(Class<?> type,
                                                          Class<? extends Annotation> annotationClass)

Get all static methods on given class object annotated with given annotation.

Parameters:

type - Class to inspect.

annotationClass - Annotation class.

Returns:

Fields.

setter

public static void setter(Object instance,
                          Field field,
                          Object value)

Set value of given field on given instance.

Parameters:

instance - Instance.

field - Field.

value - Field value.

Throws:

ReflectionException - if set operation is not permitted.

getter

public static <T> T getter(Field field)

Get value of static field.

Type Parameters:

T - Type of expected value.

Parameters:

field - Field.

Returns:

Value of static field.

getter

public static <T> T getter(Object target,
                           Field field)

Get value of field on target object. If target is null, it means that field is static and do not need any target instance.

Type Parameters:

T - Type of expected value.

Parameters:

target - Target object.

field - Field.

Returns:

Field value.

invoke

public static <T> T invoke(Method method)

Invoke the static method without any arguments.

Type Parameters:

T - Return type.

Parameters:

method - The method to invoke.

Returns:

The result of the method invocation.