pluginclassloader.java

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package net.jxta.myjxta.plugin;

import java.net.URL;
import java.net.URLClassLoader;

public final class PluginClassLoader extends URLClassLoader{
    private final boolean m_isCaching=true;


    /**
     * Constructs a new URLClassLoader for the specified URLs using the
     * default delegation parent <code>ClassLoader</code>. The URLs will
     * be searched in the order specified for classes and resources after
     * first searching in the parent class loader. Any URL that ends with
     * a '/' is assumed to refer to a directory. Otherwise, the URL is
     * assumed to refer to a JAR file which will be downloaded and opened
     * as needed.
     * <p/>
     * <p>If there is a security manager, this method first
     * calls the security manager's <code>checkCreateClassLoader</code> method
     * to ensure creation of a class loader is allowed.
     *
     * @param urls the URLs from which to load classes and resources
     * @throws SecurityException if a security manager exists and its
     *                           <code>checkCreateClassLoader</code> method doesn't allow
     *                           creation of a class loader.
     * @see SecurityManager#checkCreateClassLoader
     */
    public PluginClassLoader(URL[] urls,ClassLoader parent) {
        super(urls,parent);
        
        
    }

    @SuppressWarnings("unchecked")
	protected synchronized Class loadClass(String name, boolean resolve) throws ClassNotFoundException {
            if (m_isCaching){
                return super.loadClass(name,resolve);
            } else {
                Class c = findClass(name);

                if (resolve) {
                    resolveClass(c);
                }
                return c;
            }
    }
}