001// Copyright 2009, 2012 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 * Extension to {@link org.apache.tapestry5.ioc.ServiceLifecycle} that adds an additional method.
019 */
020public interface ServiceLifecycle2 extends ServiceLifecycle
021{
022    /**
023     * If true, then lifecycle requires a proxy, meaning it is only usable with services that properly define a service
024     * interface. The default (singleton) scope does not require a proxy, but most other service scopes do. The default
025     * (when wrapping a {@link org.apache.tapestry5.ioc.ServiceLifecycle} as a {@link
026     * org.apache.tapestry5.ioc.ServiceLifecycle2} is to return true.
027     *
028     * @return true if proxying is necessary, false otherwise
029     */
030    boolean requiresProxy();
031}