001// Copyright 2008, 2010 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.tapestry5.services;
016
017import java.lang.annotation.Documented;
018import java.lang.annotation.ElementType;
019import java.lang.annotation.Retention;
020import java.lang.annotation.RetentionPolicy;
021import java.lang.annotation.Target;
022
023/**
024 * Marker annotation used to inject the correct {@link org.apache.tapestry5.services.InvalidationEventHub} service
025 * responsible for invalidations when underlying component class files are changed.
026 * 
027 * @since 5.1.0.0
028 */
029@Target(
030{ ElementType.PARAMETER, ElementType.FIELD, ElementType.METHOD })
031@Retention(RetentionPolicy.RUNTIME)
032@Documented
033public @interface ComponentClasses
034{
035}