Package org.aksw.commons.util.reflect

Class ClassUtils

java.lang.Object

org.aksw.commons.util.reflect.ClassUtils

public class ClassUtils
extends Object

Author:

Claus Stadler Date: 6/3/11

Constructor Summary

Constructors

Constructor	Description
ClassUtils()

Method Summary

Modifier and Type	Method	Description
static void	access(AccessibleObject obj, ThrowingRunnable consumer)
static <T> T	accessCalc(AccessibleObject obj, Callable<T> consumer)
static Stream<List<Class<?>>>	bfsStream(Class<?> start)	Stream a classes super class and interfaces as lists of breadths
static Object	forceInvoke(Object o, Method m, Object... args)
static Object	forceInvoke(Method m, Object[] args)
static List<Method>	getAllNonOverriddenMethods(Class<?> clazz)	Returns all non-overridden methods for the given class.
static List<Method>	getAllNonOverriddenMethods(Class<?> clazz, String name)
static Stream<Class<?>>	getDirectSuperclassAndInterfaces(Class<?> cls)
static Integer[]	getDistance(Class<?>[] a, Class<?>[] b)
static Integer	getDistance(Class<?> given, Class<?> there)	Returns the minimum distance of two classes in an inheritance hierarchy Null if there is no distance
static Integer[]	getDistance(Class<?> ra, Class<?> rb, Class<?>[] a, Class<?>[] b)	Including return types
static <T> T	getFieldValue(Class<?> clazz, String fieldName, Object obj)
static <T> T	getFieldValue(Object obj, String fieldName)
static <T> T	getFieldValueChecked(Class<?> clazz, String fieldName, Object obj)
static Field	getModifiersField()
static Set<Class<?>>	getMostSpecificSubclasses(Class<?> given, Collection<Class<?>> classes)
static Set<Class<?>>	getNonSubsumedClasses(Collection<Class<?>> classes)
static Integer	getRelation(Integer[] a, Integer[] b)
static Class<?>[]	getTypeSignature(Object[] args)
static List<Class<?>>	getTypeSignatureList(Object[] args)
static void	setFieldValue(Class<?> clazz, String fieldName, Object obj, Object value)
static void	setFieldValue(Object obj, String fieldName, Object value)
static void	setFieldValueChecked(Class<?> clazz, String fieldName, Object obj, Object value)
static <T> Supplier<T>	supplierFromCtor(Class<?> cls, boolean createTestInstance)	Return a supplier that invokes the given class' no-arg constructor.
static <T> Supplier<T>	supplierFromCtor(Constructor<?> ctor, boolean createTestInstance)	Return a supplier that invokes the constructor.

Methods inherited from class java.lang.Object

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

Constructor Details

ClassUtils

public ClassUtils()

Method Details

getDirectSuperclassAndInterfaces

public static Stream<Class<?>> getDirectSuperclassAndInterfaces(Class<?> cls)

bfsStream

public static Stream<List<Class<?>>> bfsStream(Class<?> start)

Stream a classes super class and interfaces as lists of breadths

getFieldValueChecked

public static <T> T getFieldValueChecked(Class<?> clazz,
 String fieldName,
 Object obj)
                                  throws NoSuchFieldException,
SecurityException,
IllegalArgumentException,
IllegalAccessException

Throws:

NoSuchFieldException

SecurityException

IllegalArgumentException

IllegalAccessException

getFieldValue

public static <T> T getFieldValue(Class<?> clazz,
 String fieldName,
 Object obj)

getFieldValue

public static <T> T getFieldValue(Object obj,
 String fieldName)

getModifiersField

public static Field getModifiersField()
                               throws IllegalAccessException,
NoSuchFieldException

Throws:

IllegalAccessException

NoSuchFieldException

setFieldValueChecked

public static void setFieldValueChecked(Class<?> clazz,
 String fieldName,
 Object obj,
 Object value)
                                 throws IllegalArgumentException,
IllegalAccessException,
NoSuchFieldException,
SecurityException

Throws:

IllegalArgumentException

IllegalAccessException

NoSuchFieldException

SecurityException

access

public static void access(AccessibleObject obj,
 ThrowingRunnable consumer)

accessCalc

public static <T> T accessCalc(AccessibleObject obj,
 Callable<T> consumer)

setFieldValue

public static void setFieldValue(Class<?> clazz,
 String fieldName,
 Object obj,
 Object value)

setFieldValue

public static void setFieldValue(Object obj,
 String fieldName,
 Object value)

forceInvoke

public static Object forceInvoke(Method m,
 Object[] args)

forceInvoke

public static Object forceInvoke(Object o,
 Method m,
 Object... args)

getDistance

public static Integer getDistance(Class<?> given,
 Class<?> there)

Returns the minimum distance of two classes in an inheritance hierarchy Null if there is no distance

getTypeSignatureList

public static List<Class<?>> getTypeSignatureList(Object[] args)

getTypeSignature

public static Class<?>[] getTypeSignature(Object[] args)

getDistance

public static Integer[] getDistance(Class<?>[] a,
 Class<?>[] b)

getDistance

public static Integer[] getDistance(Class<?> ra,
 Class<?> rb,
 Class<?>[] a,
 Class<?>[] b)

Including return types

Parameters:

ra -

rb -

a -

b -

Returns:

getRelation

public static Integer getRelation(Integer[] a,
 Integer[] b)

Parameters:

a -

b -

Returns:

L, LE, E, GE, G, Mixed

getAllNonOverriddenMethods

public static List<Method> getAllNonOverriddenMethods(Class<?> clazz)

Returns all non-overridden methods for the given class.

Parameters:

clazz -

Returns:

getAllNonOverriddenMethods

public static List<Method> getAllNonOverriddenMethods(Class<?> clazz,
 String name)

Parameters:

clazz -

name - Convenience filter by name

Returns:

getMostSpecificSubclasses

public static Set<Class<?>> getMostSpecificSubclasses(Class<?> given,
 Collection<Class<?>> classes)

getNonSubsumedClasses

public static Set<Class<?>> getNonSubsumedClasses(Collection<Class<?>> classes)

supplierFromCtor

public static <T> Supplier<T> supplierFromCtor(Class<?> cls,
 boolean createTestInstance)

Return a supplier that invokes the given class' no-arg constructor.

Parameters:

cls - The class

createTestInstance - If true then for verification an instance is taken from the created supplier immediately.

supplierFromCtor

public static <T> Supplier<T> supplierFromCtor(Constructor<?> ctor,
 boolean createTestInstance)

Return a supplier that invokes the constructor.

Parameters:

ctor - The constructor

createTestInstance - If true then for verification an instance is taken from the created supplier immediately.