Package org.zeroturnaround.javarebel.integration.util

Class ClassReflectionUtil

java.lang.Object

org.zeroturnaround.javarebel.integration.util.ClassReflectionUtil

public abstract class ClassReflectionUtil
extends Object

Class reflection helper methods.

Author:

Rein Raudjärv

Constructor Summary

Constructors

Constructor	Description
ClassReflectionUtil()

Method Summary

Modifier and Type	Method	Description
static Set<Class<?>>	getClassHierarchies(Class<?>[] classes)
static Set<Class<?>>	getClassHierarchies(Collection<? extends Class<?>> classes)
static Set<Class<?>>	getClassHierarchy(Class<?> klass)
static Object	getDeclaredFieldValue(Object target, String field)	Get the value of a field on the given object.
static Set<Class<?>>	getInterfaces(Collection<Class<?>> classes)
static void	setDeclaredFieldValue(Object instance, String field, Object value)	Set the value of a field on the given instance.

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassReflectionUtil

public ClassReflectionUtil()

Method Detail

getClassHierarchy

public static Set<Class<?>> getClassHierarchy(Class<?> klass)

Parameters:

klass - a root class.

Returns:

a set containing the given class, the super classes, the interfaces and all the parent interfaces.

getClassHierarchies

public static Set<Class<?>> getClassHierarchies(Class<?>[] classes)

Parameters:

classes - root classes.

Returns:

a set containing the given classes, the super classes, the interfaces and all the parent interfaces.

getClassHierarchies

public static Set<Class<?>> getClassHierarchies(Collection<? extends Class<?>> classes)

Parameters:

classes - root classes.

Returns:

a set containing the given classes, the super classes, the interfaces and all the parent interfaces.

getInterfaces

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

Parameters:

classes - a set of classes.

Returns:

a set containing interfaces of each class.

setDeclaredFieldValue

public static void setDeclaredFieldValue(Object instance,
                                         String field,
                                         Object value)
                                  throws NoSuchFieldException,
                                         IllegalAccessException

Set the value of a field on the given instance. The field must be declared by the class of the instance. The field is made accessible before being set.

Throws:

NoSuchFieldException

IllegalAccessException

getDeclaredFieldValue

public static Object getDeclaredFieldValue(Object target,
                                           String field)
                                    throws NoSuchFieldException,
                                           IllegalAccessException

Get the value of a field on the given object. The field must be declared by the class of the given object. The field is made accessible before being read.

Throws:

NoSuchFieldException

IllegalAccessException