com.anthonyeden.lib.util
Class ClassUtilities

java.lang.Object
  com.anthonyeden.lib.util.ClassUtilities

public class ClassUtilities

extends java.lang.Object

Useful class management utilities.

Author:

Anthony Eden

Method Summary

protected static void	addClassesAndInterfaces(java.lang.Class c, java.util.List classes) Add all super classes and interfaces of the given class to the given List.
static java.util.List	getAllClassesAndInterfaces(java.lang.Class startClass) Find all super classes and implemented interfaces for the given class.
static java.net.URL	getResource(java.lang.String name) Load the specified resource.
static java.net.URL	getResource(java.lang.String name, java.lang.Class requestor) Load the specified resource.
static java.net.URL	getResource(java.lang.String name, java.lang.Object requestor) Load the specified resource.
static java.io.InputStream	getResourceAsStream(java.lang.String name) Load the specified resource stream.
static java.io.InputStream	getResourceAsStream(java.lang.String name, java.lang.Class requestor) Load the specified resource stream.
static java.io.InputStream	getResourceAsStream(java.lang.String name, java.lang.Object requestor) Load the specified resource stream.
static java.lang.Class	loadClass(java.lang.String className) Load the specified class name.
static java.lang.Class	loadClass(java.lang.String className, java.lang.Class requestor) Load the specified class name.
static java.lang.Class	loadClass(java.lang.String className, java.lang.Object requestor) Load the specified class name.

Methods inherited from class java.lang.Object

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

Method Detail

loadClass

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

Load the specified class name. This method will first attempt to load the class using the context class loader. If that fails due to a ClassNotFoundException or a SecurityException then the ClassUtilities class loader is used.

Parameters:

className - The class name

Returns:

The Class

Throws:

java.lang.ClassNotFoundException

loadClass

public static java.lang.Class loadClass(java.lang.String className,
                                        java.lang.Object requestor)
                                 throws java.lang.ClassNotFoundException

Load the specified class name. This method will first attempt to load the class using the context class loader. If that fails due to a ClassNotFoundException or a SecurityException then the requestor's class loader is used. If the requestor object is null then the ClassUtilities class loader is used.

Parameters:

className - The class name

requestor - The object requesting the class or null

Returns:

The Class

Throws:

java.lang.ClassNotFoundException

loadClass

public static java.lang.Class loadClass(java.lang.String className,
                                        java.lang.Class requestor)
                                 throws java.lang.ClassNotFoundException

Load the specified class name. This method will first attempt to load the class using the context class loader. If that fails due to a ClassNotFoundException or a SecurityException then the requestor's class loader is used. If the requestor object is null then the ClassUtilities class loader is used.

Parameters:

className - The class name

requestor - The class of the object requesting the class or null

Returns:

The Class

Throws:

java.lang.ClassNotFoundException

getResource

public static java.net.URL getResource(java.lang.String name)

Load the specified resource. This method will first attempt to load the class using the context class loader. If that fails due to a ClassNotFoundException or a SecurityException then the ClassUtilities class loader is used.

Parameters:

name - The resource name

Returns:

The resource URL or null

getResource

public static java.net.URL getResource(java.lang.String name,
                                       java.lang.Object requestor)

Load the specified resource. This method will first attempt to load the class using the context class loader. If that fails due to a ClassNotFoundException or a SecurityException then the requestor's class loader is used. If the requestor object is null then the ClassUtilities class loader is used.

Parameters:

name - The resource name

requestor - The object requesting the resource or null

Returns:

The resource URL or null

getResource

public static java.net.URL getResource(java.lang.String name,
                                       java.lang.Class requestor)

Load the specified resource. This method will first attempt to load the class using the context class loader. If that fails due to a ClassNotFoundException or a SecurityException then the requestor's class loader is used. If the requestor object is null then the ClassUtilities class loader is used.

Parameters:

name - The resource name

requestor - The class of the object requesting the resource or null

Returns:

The resource URL or null

getResourceAsStream

public static java.io.InputStream getResourceAsStream(java.lang.String name)

Load the specified resource stream. This method will first attempt to load the class using the context class loader. If that fails due to a ClassNotFoundException or a SecurityException then ClassUtilities class loader is used.

Parameters:

name - The resource name

Returns:

The resource stream or null

getResourceAsStream

public static java.io.InputStream getResourceAsStream(java.lang.String name,
                                                      java.lang.Object requestor)

Load the specified resource stream. This method will first attempt to load the class using the context class loader. If that fails due to a ClassNotFoundException or a SecurityException then the requestor's class loader is used. If the requestor object is null then the ClassUtilities class loader is used.

Parameters:

name - The class name

requestor - The object requesting the resource or null

Returns:

The resource stream or null

getResourceAsStream

public static java.io.InputStream getResourceAsStream(java.lang.String name,
                                                      java.lang.Class requestor)

Load the specified resource stream. This method will first attempt to load the class using the context class loader. If that fails due to a ClassNotFoundException or a SecurityException then the requestor's class loader is used. If the requestor object is null then the ClassUtilities class loader is used.

Parameters:

name - The class name

requestor - The class of the object requesting the resource or null

Returns:

The resource stream or null

getAllClassesAndInterfaces

public static java.util.List getAllClassesAndInterfaces(java.lang.Class startClass)

Find all super classes and implemented interfaces for the given class.

Parameters:

startClass - The class

Returns:

A List of Class objects

addClassesAndInterfaces

protected static void addClassesAndInterfaces(java.lang.Class c,
                                              java.util.List classes)

Add all super classes and interfaces of the given class to the given List.

Parameters:

c - The Class

classes - An List of Classes