    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
    015    package org.apache.tapestry5.ioc.annotations;
    016
    017    import java.lang.annotation.Documented;
    018    import static java.lang.annotation.ElementType.FIELD;
    019    import static java.lang.annotation.ElementType.PARAMETER;
    020    import java.lang.annotation.Retention;
    021    import static java.lang.annotation.RetentionPolicy.RUNTIME;
    022    import 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)
    037    public @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    }