001//  Copyright 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
017/**
018 * A callback used to create a service implementation.
019 */
020public interface ServiceBuilder<T>
021{
022    /**
023     * Construct the service.  A non-null object that implements the service interface must be returned.
024     *
025     * @param resources used to lookup dependencies or access resources
026     * @return the core service implementation
027     */
028    T buildService(ServiceResources resources);
029}