    001// Copyright 2006, 2007, 2008 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;
    016
    017import org.apache.tapestry5.commons.ObjectLocator;
    018import org.apache.tapestry5.ioc.annotations.IncompatibleChange;
    019import org.slf4j.Logger;
    020
    021/**
    022 * Contains resources that may be provided to a service when it initializes, which includes other services defined in
    023 * the registry. ServiceResources provides access to other services (it extends
    024 * {@link org.apache.tapestry5.commons.ObjectLocator}).
    025 */
    026public interface ServiceResources extends ObjectLocator, AnnotationAccess
    027{
    028    /**
    029     * Returns the fully qualified id of the service.
    030     */
    031    String getServiceId();
    032
    033    /**
    034     * Returns the service interface implemented by the service.
    035     */
    036    Class getServiceInterface();
    037
    038    /**
    039     * Returns the service implementation.
    040     */
    041    @IncompatibleChange(release = "5.4", details = "Added method for TAP5-2029")
    042    Class getServiceImplementation();
    043
    044    /**
    045     * Returns a Logger appropriate for logging messages. This includes debug level messages about the creation and
    046     * configuration of the underlying service, as well as debug, warning, or error level messages from the service
    047     * itself. Often service interceptors will make use of the service's logger.
    048     */
    049    Logger getLogger();
    050
    051    /**
    052     * Returns an object that can be used to track operations related to constructing, configuring, decorating and
    053     * initializing the service.
    054     */
    055    OperationTracker getTracker();
    056
    057}