com.atomikos.util

Class ClassLoadingHelper

java.lang.Object

com.atomikos.util.ClassLoadingHelper

public class ClassLoadingHelper
extends java.lang.Object

A helper class for class loading.

Constructor Summary

Constructors

Constructor and Description
ClassLoadingHelper()

Method Summary

Modifier and Type	Method and Description
static boolean	existsInJavaObjectClass(java.lang.reflect.Method method)
static <T> java.lang.Class<T>	loadClass(java.lang.String className) Loads a class with the given name.
static java.net.URL	loadResourceFromClasspath(java.lang.Class<?> clazz, java.lang.String resourceName) Attempts to load a given resource from the classpath.
static java.lang.Object	newInstance(java.lang.String className)
static <RequiredInterfaceType> RequiredInterfaceType	newProxyInstance(java.util.Deque<java.lang.ClassLoader> classLoadersToTry, java.lang.Class<RequiredInterfaceType> requiredInterfaceType, java.lang.Class<?>[] interfaces, java.lang.reflect.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

existsInJavaObjectClass

public static boolean existsInJavaObjectClass(java.lang.reflect.Method method)

newProxyInstance

public static <RequiredInterfaceType> RequiredInterfaceType newProxyInstance(java.util.Deque<java.lang.ClassLoader> classLoadersToTry,
                                                                             java.lang.Class<RequiredInterfaceType> requiredInterfaceType,
                                                                             java.lang.Class<?>[] interfaces,
                                                                             java.lang.reflect.InvocationHandler delegate)
                                                                      throws java.lang.IllegalArgumentException

Creates a new dynamic proxy instance for the given delegate.

Parameters:

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

requiredInterfaceType - The minimum interface 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:

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

loadClass

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

Loads a class with the given name.

Parameters:

className -

Returns:

The class object

Throws:

java.lang.ClassNotFoundException - If not found

loadResourceFromClasspath

public static java.net.URL loadResourceFromClasspath(java.lang.Class<?> clazz,
                                                     java.lang.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 java.lang.Object newInstance(java.lang.String className)