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