org.jboss.weld.environment.servlet.util

Class Reflections

java.lang.Object

org.jboss.weld.environment.servlet.util.Reflections

public abstract class Reflections
extends Object

Reflection utilities

Author:

Pete Muir

Method Summary

Methods

Modifier and Type	Method and Description
static <T> Class<T>	classForName(String name)
static Field	findDeclaredField(Class<?> clazz, String name) Search the class hierarchy for a field with the given name.
static Method	findDeclaredMethod(Class<?> clazz, String name, Class<?>... args) Search the class hierarchy for a method with the given name and arguments.
static ClassLoader	getClassLoader()
static <T> T	getFieldValue(Field field, Object instance, Class<T> expectedType)
static <T> T	invokeMethod(Method method, Class<T> expectedReturnType, Object instance, Object... args)
static <T> T	newInstance(String className)
static void	setFieldValue(Field field, Object instance, Object value)

Methods inherited from class java.lang.Object

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

Method Detail

newInstance

public static <T> T newInstance(String className)

classForName

public static <T> Class<T> classForName(String name)

findDeclaredMethod

public static Method findDeclaredMethod(Class<?> clazz,
                        String name,
                        Class<?>... args)

Search the class hierarchy for a method with the given name and arguments. Will return the nearest match, starting with the class specified and searching up the hierarchy.

Parameters:

clazz - The class to search

name - The name of the method to search for

args - The arguments of the method to search for

Returns:

The method found, or null if no method is found

findDeclaredField

public static Field findDeclaredField(Class<?> clazz,
                      String name)

Search the class hierarchy for a field with the given name. Will return the nearest match, starting with the class specified and searching up the hierarchy.

Parameters:

clazz - The class to search

name - The name of the field to search for

Returns:

The field found, or null if no field is found

invokeMethod

public static <T> T invokeMethod(Method method,
                 Class<T> expectedReturnType,
                 Object instance,
                 Object... args)

setFieldValue

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

getFieldValue

public static <T> T getFieldValue(Field field,
                  Object instance,
                  Class<T> expectedType)

getClassLoader

public static ClassLoader getClassLoader()