    001// Licensed under the Apache License, Version 2.0 (the "License");
    002// you may not use this file except in compliance with the License.
    003// You may obtain a copy of the License at
    004//
    005//     http://www.apache.org/licenses/LICENSE-2.0
    006//
    007// Unless required by applicable law or agreed to in writing, software
    008// distributed under the License is distributed on an "AS IS" BASIS,
    009// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    010// See the License for the specific language governing permissions and
    011// limitations under the License.
    012
    013package org.apache.tapestry5.ioc.annotations;
    014
    015import java.lang.annotation.Documented;
    016import java.lang.annotation.Retention;
    017import java.lang.annotation.Target;
    018
    019import static java.lang.annotation.ElementType.METHOD;
    020import static java.lang.annotation.RetentionPolicy.RUNTIME;
    021
    022/**
    023 * Optional, but typically used, annotation for service decorator methods, used to define which services the decorator
    024 * applies to. This annotation defines a number of <em>patterns</em> that allow services across multiple modules to be
    025 * selected. A decorator is applied to a service if any of its patterns match the service.
    026 *
    027 * TODO: Describe pattern glob-match syntax
    028 *
    029 * When the Match annotation is not supplied, then the decorator only applies to a single service: the service whose id
    030 * matches the decorators id; that is, method <code>decorateMyService()</code> would decorate only the service provided
    031 * by the <code>buildMyService()</code> method, within the same module.
    032 */
    033@Target(METHOD)
    034@Retention(RUNTIME)
    035@Documented
    036@UseWith(AnnotationUseContext.SERVICE_DECORATOR)
    037public @interface Match
    038{
    039
    040    /**
    041     * Defines a list of patterns matched against potential service ids to identify to which services the decorator
    042     * applies. A decorator is applied if <em>any</em> of the patterns match.
    043     */
    044    String[] value();
    045}