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.spec.IComponentSpecification;
022import org.apache.tapestry.spec.InjectSpecification;
023import org.apache.tapestry.spec.InjectSpecificationImpl;
024
025/**
026 * Uses the {@link org.apache.tapestry.annotations.InjectPage} annotation to add an
027 * {@link org.apache.tapestry.spec.InjectSpecification} to the
028 * {@link org.apache.tapestry.spec.IComponentSpecification}.
029 * 
030 * @author Howard Lewis Ship
031 * @since 4.0
032 */
033public class InjectPageAnnotationWorker implements MethodAnnotationEnhancementWorker
034{
035
036    public void performEnhancement(EnhancementOperation op, IComponentSpecification spec,
037            Method method, Location location)
038    {
039        InjectPage injectPage = method.getAnnotation(InjectPage.class);
040
041        String propertyName = AnnotationUtils.getPropertyName(method);
042
043        InjectSpecification is = new InjectSpecificationImpl();
044
045        is.setProperty(propertyName);
046        is.setType("page");
047        is.setObject(injectPage.value());
048        is.setLocation(location);
049
050        spec.addInjectSpecification(is);
051    }
052
053}