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 java.lang.reflect.Method; 018 019import org.apache.hivemind.Location; 020import org.apache.tapestry.enhance.EnhancementOperation; 021import org.apache.tapestry.enhance.InjectComponentWorker; 022import org.apache.tapestry.spec.IComponentSpecification; 023 024/** 025 * Injects a reference to a compent. 026 * 027 * @author Howard M. Lewis Ship 028 * @since 4.0 029 * @see org.apache.tapestry.annotations.InjectComponent 030 * @see org.apache.tapestry.enhance.InjectComponentWorker 031 */ 032public class InjectComponentAnnotationWorker implements MethodAnnotationEnhancementWorker 033{ 034 final InjectComponentWorker _delegate; 035 036 InjectComponentAnnotationWorker(InjectComponentWorker delegate) 037 { 038 _delegate = delegate; 039 } 040 041 public InjectComponentAnnotationWorker() 042 { 043 this(new InjectComponentWorker()); 044 } 045 046 public void performEnhancement(EnhancementOperation op, IComponentSpecification spec, 047 Method method, Location location) 048 { 049 InjectComponent ic = method.getAnnotation(InjectComponent.class); 050 String propertyName = AnnotationUtils.getPropertyName(method); 051 052 _delegate.injectComponent(op, ic.value(), propertyName, location); 053 } 054 055}