001// Copyright 2006, 2008, 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.
014
015package org.apache.tapestry5.ioc.services;
016
017import org.apache.tapestry5.ioc.ServiceLifecycle;
018import org.apache.tapestry5.ioc.annotations.UsesMappedConfiguration;
019
020/**
021 * Provides access to user defined lifecycles (beyond the two built-in lifecycles: "singleton" and "primitive"). The
022 * user defined lifecycles are contributed into the service's configuration.
023 * <p/>
024 * Note that the default scope {@linkplain org.apache.tapestry5.ioc.ScopeConstants#DEFAULT "singleton"} is special and
025 * not a contribution.
026 */
027@UsesMappedConfiguration(ServiceLifecycle.class)
028public interface ServiceLifecycleSource
029{
030    /**
031     * Used to locate a configuration lifecycle, by name.
032     * 
033     * @param scope
034     * @return the named lifecycle, or null if the name is not found
035     */
036    ServiceLifecycle get(String scope);
037}