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.TapestryUtils; 019import org.apache.tapestry.enhance.EnhancementOperation; 020import org.apache.tapestry.spec.IComponentSpecification; 021 022/** 023 * Sets properties of the {@link org.apache.tapestry.spec.IComponentSpecification} based on the 024 * {@link org.apache.tapestry.annotations.ComponentClass} annotation. In addition, marks the 025 * component as deprecated if the {@link java.lang.Deprecated} annotation is present on the class. 026 * 027 * @author Howard Lewis Ship 028 * @since 4.0 029 */ 030public class ComponentClassAnnotationWorker implements ClassAnnotationEnhancementWorker 031{ 032 033 public void performEnhancement(EnhancementOperation op, IComponentSpecification spec, 034 Class baseClass, Location location) 035 { 036 ComponentClass component = (ComponentClass) baseClass.getAnnotation(ComponentClass.class); 037 038 spec.setAllowBody(component.allowBody()); 039 spec.setAllowInformalParameters(component.allowInformalParameters()); 040 spec.setLocation(location); 041 042 String[] names = TapestryUtils.split(component.reservedParameters()); 043 for (String name : names) 044 spec.addReservedParameterName(name); 045 046 if (baseClass.isAnnotationPresent(Deprecated.class)) 047 spec.setDeprecated(true); 048 } 049 050}