org.dvb.lang.DVBClassLoader Maven / Gradle / Ivy
package org.dvb.lang;
import java.net.URL;
/**
* This class loader is used to load classes and resources from
* a search path of URLs referring to locations where Java
* class files may be stored.
*
* The classes that are loaded are by default only allowed to load
* code through the parent classloader, or from the URLs specified
* when the DVBClassLoader was created.
*/
public abstract class DVBClassLoader extends java.security.SecureClassLoader {
/**
* Constructs a new DVBClassLoader for the given URLs. The
* URLs will be searched in the order specified for classes
* and resources.
*
* If there is a security manager, this method first calls the
* security manager's checkCreateClassLoader
* 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
* checkCreateClassLoader method
* doesn't allow creation of a class loader.
* @see SecurityManager#checkCreateClassLoader
*/
public DVBClassLoader(URL[] urls){ }
/**
* Constructs a new DVBClassLoader for the given URLs. The
* URLs will be searched in the order specified for classes
* and resources.
*
* If there is a security manager, this method first calls the
* security manager's checkCreateClassLoader
* method to ensure creation of a class loader is allowed.
*
* @param urls the URLs from which to load classes and resources
* @param parent the parent classloader for delegation
* @throws SecurityException if a security manager exists and its
* checkCreateClassLoader method
* doesn't allow creation of a class loader.
* @see SecurityManager#checkCreateClassLoader
*/
public DVBClassLoader(URL[] urls, ClassLoader parent){
}
/**
* Finds and loads the class with the specified name from the URL
* search path. Any URLs are searched
* until the class is found.
* @throws ClassNotFoundException if the named class could not be
* found.
* @param name the name of the class.
* @return the resulting class.
*/
public Class findClass(String name) throws ClassNotFoundException {
return null;
}
/**
* Creates a new instance of DVBClassLoader for the specified URLs.
* If a security manager is installed, the loadClass
* method of the DVBClassLoader returned by this method will invoke
* the SecurityManager.checkPackageAccess method before
* loading the class.
*
* @param urls the URLs to search for classes and resources.
* @return the resulting class loader
*/
public static DVBClassLoader newInstance(URL[] urls){
return null;
}
/**
* Creates a new instance of DVBClassLoader for the specified URLs.
* If a security manager is installed, the loadClass
* method of the DVBClassLoader returned by this method will invoke
* the SecurityManager.checkPackageAccess method before
* loading the class.
*
* @param urls the URLs to search for classes and resources.
* @param parent the parent class loader for delegation.
* @return the resulting class loader
*/
public static DVBClassLoader newInstance(URL[] urls,
ClassLoader parent){
return null;
}
}