001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.wicket.application;
018
019import java.net.URL;
020import java.util.Iterator;
021
022/**
023 * An interface to code which finds classes and resources
024 * 
025 * @author Jonathan Locke
026 * @author Juergen Donnerstag
027 */
028public interface IClassResolver
029{
030        /**
031         * Resolves a class by name (which may or may not involve loading it; thus the name class
032         * *resolver* not *loader*).
033         * 
034         * @param classname
035         *            Fully qualified classname to find
036         * @return Class
037         * @throws ClassNotFoundException
038         */
039        Class<?> resolveClass(final String classname) throws ClassNotFoundException;
040
041
042        /**
043         * Tries to load all the resources by the name that is given.
044         * 
045         * @param name
046         * @return iterator over matching resources
047         */
048        Iterator<URL> getResources(String name);
049
050        /**
051         * Returns the {@link ClassLoader} to be used for resolving classes
052         *
053         * @return the {@link ClassLoader} to be used for resolving classes
054         */
055        ClassLoader getClassLoader();
056}