001// Copyright 2008, 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.*; 018 019/** 020 * A documentation-only interface placed on service interfaces for services which have a {@linkplain 021 * org.apache.tapestry5.ioc.MappedConfiguration mapped configuration}, to identify the type of key (often, a String), 022 * and type ofcontribution. 023 * <p/> 024 * Remember that when the key type is String, the map will be case-insensitive. 025 */ 026@Target(ElementType.TYPE) 027@Retention(RetentionPolicy.CLASS) 028@Documented 029@UseWith(AnnotationUseContext.SERVICE) 030public @interface UsesMappedConfiguration 031{ 032 /** 033 * The type of key used to identify contribution values. 034 */ 035 Class key() default String.class; 036 037 /** 038 * The type of object which may be contributed into the service's configuration. 039 */ 040 Class value(); 041}