org.apache.jackrabbit.ocm.reflection
Class ReflectionUtils

java.lang.Object
  org.apache.jackrabbit.ocm.reflection.ReflectionUtils

public abstract class ReflectionUtils
extends Object

Utility class for handling reflection using BeanUtils.

Author:

Alexandru Popescu

Constructor Summary

ReflectionUtils()

Method Summary

static Class	forName(String clazz)
static Class	getAncestorClass(Class clazz)
static Class	getBeanClass(Object bean)
static ClassLoader	getClassLoader() Returns the class loader which is used by the forName(String) method to load classes.
static Class	getDefaultImplementation(Class clazz) Get the default implementation for an interface
static Class[]	getInterfaces(Class clazz)
static Object	getNestedProperty(Object object, String fieldName)
static Class	getPropertyType(Object object, String fieldName)
static boolean	implementsInterface(Class clazz, Class interfaceClass) Check if an class is implementing an specific interface.
static Object	invokeConstructor(String className, Object[] params)
static boolean	isAbstractClass(Class clazz)
static boolean	isProxy(Class beanClass)
static Object	newInstance(Class clazz)
static Object	newInstance(String clazz)
static void	setClassLoader(ClassLoader newClassLoader) Sets the class loader to use in the forName(String) method to load classes.
static void	setNestedProperty(Object object, String fieldName, Object value)

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectionUtils

public ReflectionUtils()

Method Detail

setClassLoader

public static void setClassLoader(ClassLoader newClassLoader)

Sets the class loader to use in the forName(String) method to load classes.

Care must be taken when using this method as when setting an improperly set up classloader, the mapper will not work again throwing tons of exceptions.

Parameters:

newClassLoader - The new class loader to use. This may be null in which case the system class loader will be used.

getClassLoader

public static ClassLoader getClassLoader()

Returns the class loader which is used by the forName(String) method to load classes.

Returns:

The class loader used by forName(String) or null if the system class loader is used.

getNestedProperty

public static Object getNestedProperty(Object object,
                                       String fieldName)

getPropertyType

public static Class getPropertyType(Object object,
                                    String fieldName)

newInstance

public static Object newInstance(Class clazz)

invokeConstructor

public static Object invokeConstructor(String className,
                                       Object[] params)

Parameters:

className -

objects -

Returns:

setNestedProperty

public static void setNestedProperty(Object object,
                                     String fieldName,
                                     Object value)

Parameters:

object -

fieldName -

path -

newInstance

public static Object newInstance(String clazz)

Parameters:

string -

Returns:

forName

public static Class forName(String clazz)

Parameters:

elementClassName -

Returns:

isProxy

public static boolean isProxy(Class beanClass)

getBeanClass

public static Class getBeanClass(Object bean)

implementsInterface

public static boolean implementsInterface(Class clazz,
                                          Class interfaceClass)

Check if an class is implementing an specific interface.

Parameters:

clazz -

interfaceClass -

Returns:

true if the class is implementing the interface otherwise false

getDefaultImplementation

public static Class getDefaultImplementation(Class clazz)

Get the default implementation for an interface

Parameters:

clazz - The interface clazz

Returns:

The class matching to the interface default interface

isAbstractClass

public static boolean isAbstractClass(Class clazz)

getAncestorClass

public static Class getAncestorClass(Class clazz)

getInterfaces

public static Class[] getInterfaces(Class clazz)