Package org.apache.struts.chain.commands.util

Class ClassUtils

java.lang.Object

org.apache.struts.chain.commands.util.ClassUtils

public final class ClassUtils
extends Object

Utility methods to load application classes and create instances.

Version:

$Rev$ $Date: 2005-11-12 13:01:44 -0500 (Sat, 12 Nov 2005) $

Constructor Summary

Constructors

Constructor	Description
ClassUtils()

Method Summary

Modifier and Type	Method	Description
static Class<?>	getApplicationClass(String className)	Return the Class object for the specified fully qualified class name, from this web application's class loader.
static Object	getApplicationInstance(String className)	Return a new instance of the specified fully qualified class name, after loading the class (if necessary) from this web application's class loader.

Methods inherited from class java.lang.Object

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

Constructor Details

ClassUtils

public ClassUtils()

Method Details

getApplicationClass

public static Class<?> getApplicationClass(String className)
                                    throws ClassNotFoundException

Return the Class object for the specified fully qualified class name, from this web application's class loader.

Parameters:

className - Fully qualified class name

Throws:

ClassNotFoundException - if the specified class cannot be loaded

getApplicationInstance

public static Object getApplicationInstance(String className)
                                     throws InstantiationException,
IllegalAccessException,
IllegalArgumentException,
InvocationTargetException,
NoSuchMethodException,
SecurityException,
ClassNotFoundException

Return a new instance of the specified fully qualified class name, after loading the class (if necessary) from this web application's class loader.

Parameters:

className - Fully qualified class name

Throws:

InstantiationException - if this class has no zero-arguments constructor

IllegalAccessException - if this class is not concrete

IllegalArgumentException - if the number of actual and formal parameters differ

InvocationTargetException - if the underlying constructor throws an exception

NoSuchMethodException - if a matching method is not found

SecurityException - if there is a security-exception

ClassNotFoundException - if the specified class cannot be loaded