    001// Copyright 2006, 2009 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.ioc.annotations;
    016
    017import java.lang.annotation.Documented;
    018import static java.lang.annotation.ElementType.METHOD;
    019import java.lang.annotation.Retention;
    020import static java.lang.annotation.RetentionPolicy.RUNTIME;
    021import java.lang.annotation.Target;
    022
    023/**
    024 * Optional, but typically used, annotation for service decorator methods, used to define which services the decorator
    025 * applies to. This annotation defines a number of <em>patterns</em> that allow services across multiple modules to be
    026 * selected. A decorator is applied to a service if any of its patterns match the service.
    027 * <p/>
    028 * TODO: Describe pattern glob-match syntax
    029 * <p/>
    030 * When the Match annotation is not supplied, then the decorator only applies to a single service: the service whose id
    031 * matches the decorators id; that is, method <code>decorateMyService()</code> would decorate only the service provided
    032 * by the <code>buildMyService()</code> method, within the same module.
    033 */
    034@Target(METHOD)
    035@Retention(RUNTIME)
    036@Documented
    037@UseWith(AnnotationUseContext.SERVICE_DECORATOR)
    038public @interface Match
    039{
    040
    041    /**
    042     * Defines a list of patterns matched against potential service ids to identify to which services the decorator
    043     * applies. A decorator is applied if <em>any</em> of the patterns match.
    044     */
    045    String[] value();
    046}