uk.ac.starlink.util

Class AuxClassLoader

java.lang.Object

java.lang.ClassLoader

java.security.SecureClassLoader

java.net.URLClassLoader

uk.ac.starlink.util.AuxClassLoader

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class AuxClassLoader
extends java.net.URLClassLoader

This class provides a ClassLoader which looks on a given class path. In cases where an application is invoked using the extension mechanism (normally using java -jar) and hence gets its classpath from somewhere other than the environment (e.g. $CLASSPATH), this can pick up a different set of classes than the default/system ClassLoader. This will typically be of use where code wants to permit 'pluggability', that is allowing the user to make classes available to the system other than those known about at the build/install time for the rest of the application/infrastructure framework.

The default delegation ClassLoader is used as the parent of this one, so that the system classloader(?) will be queried for any classes before they are searched for on the given class.

Constructor Summary

Constructors

Constructor and Description
AuxClassLoader(java.lang.String classpath) Constructs a ClassLoader which will look on a given path.

Method Summary

Methods inherited from class java.net.URLClassLoader

addURL, close, definePackage, findClass, findResource, findResources, getPermissions, getResourceAsStream, getURLs, newInstance, newInstance

Methods inherited from class java.security.SecureClassLoader

defineClass, defineClass

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, defineClass, defineClass, defineClass, defineClass, definePackage, findLibrary, findLoadedClass, findSystemClass, getClassLoadingLock, getPackage, getPackages, getParent, getResource, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, loadClass, registerAsParallelCapable, resolveClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus, setSigners

Methods inherited from class java.lang.Object

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

Constructor Detail

AuxClassLoader

public AuxClassLoader(java.lang.String classpath)

Constructs a ClassLoader which will look on a given path.

Parameters:

classpath - a class path specified in the same format as the java.class.path system property