001// Copyright 2006, 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.Documented; 018import static java.lang.annotation.ElementType.FIELD; 019import static java.lang.annotation.ElementType.PARAMETER; 020import java.lang.annotation.Retention; 021import static java.lang.annotation.RetentionPolicy.RUNTIME; 022import java.lang.annotation.Target; 023 024 025/** 026 * Annotation used with parameters of service builder methods to identify the service to be injected into the service 027 * builder method via the parameter. In many cases the {@link org.apache.tapestry5.ioc.annotations.Inject} annotation is 028 * more flexible or appropriate. 029 * <p/> 030 * This annotation may also be used with fields of service implementation classes, modules, or other objects constructed 031 * via {@link org.apache.tapestry5.ioc.ObjectLocator#autobuild(Class)}. 032 */ 033@Target({PARAMETER, FIELD}) 034@Retention(RUNTIME) 035@Documented 036@UseWith(AnnotationUseContext.SERVICE) 037public @interface InjectService 038{ 039 040 /** 041 * The id of the service to inject; either a fully qualified id, or the unqualified id of a service within the same 042 * module. 043 */ 044 String value(); 045}