    001    // Copyright 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.METHOD;
    019    import static java.lang.annotation.ElementType.TYPE;
    020    import java.lang.annotation.Retention;
    021    import static java.lang.annotation.RetentionPolicy.RUNTIME;
    022    import java.lang.annotation.Target;
    023
    024    /**
    025     * An optional annotation that may be placed on a service building method of a module, or on the implementation class
    026     * (when using service binding via the {@link org.apache.tapestry5.ioc.ServiceBinder}). The annotation overrides the
    027     * default id for services (the default service id is the simple name of the service interface).
    028     */
    029    @Target({ TYPE, METHOD })
    030    @Retention(RUNTIME)
    031    @Documented
    032    @UseWith({AnnotationUseContext.SERVICE, AnnotationUseContext.MODULE})
    033    public @interface ServiceId
    034    {
    035        /**
    036         * An identifier of a service.
    037         */
    038        String value();
    039    }