com.atomikos.util
Class ClassLoadingHelper

java.lang.Object
  com.atomikos.util.ClassLoadingHelper

public class ClassLoadingHelper
extends Object

A helper class for class loading.

Constructor Summary

ClassLoadingHelper()

Method Summary

static <T> Class<T>	loadClass(String className) Loads a class with the given name.
static URL	loadResourceFromClasspath(Class<?> clazz, String resourceName) Attempts to load a given resource from the classpath.
static Object	newInstance(String className)
static Object	newProxyInstance(List classLoadersToTry, Class[] minimumSetOfInterfaces, Class[] interfaces, InvocationHandler delegate) Creates a new dynamic proxy instance for the given delegate.

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassLoadingHelper

public ClassLoadingHelper()

Method Detail

newProxyInstance

public static Object newProxyInstance(List classLoadersToTry,
                                      Class[] minimumSetOfInterfaces,
                                      Class[] interfaces,
                                      InvocationHandler delegate)
                               throws IllegalArgumentException

Creates a new dynamic proxy instance for the given delegate.

Parameters:

classLoadersToTry - The class loaders to try, in the specified list order.

minimumSetOfInterfaces - The minimum set of interfaces required, if not all interface classes were found.

interfaces - The interfaces to add to the returned proxy.

delegate - The underlying object that will receive the calls on the proxy.

Returns:

The proxy.

Throws:

IllegalArgumentException - If any of the interfaces involved could not be loaded.

loadClass

public static <T> Class<T> loadClass(String className)
                          throws ClassNotFoundException

Loads a class with the given name.

Parameters:

className -

Returns:

The class object

Throws:

ClassNotFoundException - If not found

loadResourceFromClasspath

public static URL loadResourceFromClasspath(Class<?> clazz,
                                            String resourceName)

Attempts to load a given resource from the classpath.

Parameters:

clazz - The class to use as reference re classpath.

resourceName - The name of the resource

Returns:

The URL to the resource, or null if not found.

newInstance

public static Object newInstance(String className)