    001// Copyright 2010 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.
    014package org.apache.tapestry5.ioc;
    015
    016import java.util.Set;
    017
    018import org.apache.tapestry5.ioc.def.ServiceDef;
    019
    020
    021/**
    022 * Interface implemented by objects which need to disambiguate services with marker annotations.
    023 *
    024 * @since 5.2.2
    025 */
    026public interface Markable
    027{
    028    /**
    029     * Returns an optional set of <em>marker annotation</em>. Marker annotations are used to disambiguate services; the
    030     * combination of a marker annotation and a service type is expected to be unique. Note that it is not possible
    031     * to identify which annotations are markers and which are not when this set is constructed, so it may include
    032     * non-marker annotations.
    033     *
    034     * @see ServiceDef#getMarkers()
    035     */
    036    Set<Class> getMarkers();
    037
    038    /**
    039     * Returns the service interface associated with the service.
    040     *
    041     * @see ServiceDef#getServiceInterface()
    042     */
    043    Class getServiceInterface();
    044}