001// Copyright 2005 The Apache Software Foundation 002// 003// Licensed under the Apache License, Version 2.0 (the "License"); 004// you may not use this file except in compliance with the License. 005// You may obtain a copy of the License at 006// 007// http://www.apache.org/licenses/LICENSE-2.0 008// 009// Unless required by applicable law or agreed to in writing, software 010// distributed under the License is distributed on an "AS IS" BASIS, 011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012// See the License for the specific language governing permissions and 013// limitations under the License. 014 015package org.apache.tapestry.services; 016 017/** 018 * Used to search for a class within a list of packages. Available as service tapestry.ClassFinder. 019 * 020 * @author Howard Lewis Ship 021 * @since 4.0 022 */ 023public interface ClassFinder 024{ 025 /** 026 * Searches for a class within a list of packages, which always includes the default package. 027 * 028 * @param packageList 029 * a comma seperated list of package names (i.e., "java.lang,java.util") 030 * @param className 031 * the name of the class to search for. This may be just a class name, or even a 032 * partial class name (i.e., "impl.Foo"). 033 * @return the class, if found, or null if no class could be found in any of the packages 034 */ 035 036 public Class findClass(String packageList, String className); 037}