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.annotations; 016 017import org.apache.hivemind.Location; 018import org.apache.tapestry.enhance.EnhancementOperation; 019import org.apache.tapestry.spec.IComponentSpecification; 020 021/** 022 * Defines workers that perform annotation enhancements at the class level. 023 * 024 * @author Howard Lewis Ship 025 * @since 4.0 026 */ 027public interface ClassAnnotationEnhancementWorker 028{ 029 /** 030 * Performs a particular enhancement based on a registered annotation. Exception reporting is 031 * the responsibility of the caller. 032 * 033 * @param op 034 * the enhancement operaration 035 * @param spec 036 * the specification of the component for which a class is being enhanced 037 * @param baseClass 038 * the class containing the annotation 039 * @param location 040 * the location associated with the annotation 041 */ 042 043 public void performEnhancement(EnhancementOperation op, IComponentSpecification spec, 044 Class baseClass, Location location); 045 046}