    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}