    001// Licensed to the Apache Software Foundation (ASF) under one
    002// or more contributor license agreements.  See the NOTICE file
    003// distributed with this work for additional information
    004// regarding copyright ownership.  The ASF licenses this file
    005// to you under the Apache License, Version 2.0 (the
    006// "License"); you may not use this file except in compliance
    007// with the License.  You may obtain a copy of the License at
    008//
    009// http://www.apache.org/licenses/LICENSE-2.0
    010//
    011// Unless required by applicable law or agreed to in writing,
    012// software distributed under the License is distributed on an
    013// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    014// KIND, either express or implied.  See the License for the
    015// specific language governing permissions and limitations
    016// under the License.
    017
    018package org.apache.tapestry5.services;
    019
    020import org.apache.tapestry5.ioc.annotations.UsesMappedConfiguration;
    021
    022/**
    023 * Used to provide access to
    024 * {@link org.apache.tapestry5.services.ApplicationStatePersistenceStrategySource} instances
    025 * via a logical name for the strategy, such as "session".
    026 * <p>
    027 * <em>NOTE: The term "Application" here is a hold-over from Tapestry 5.0, which used
    028 * the @ApplicationState (deprecated and deleted) annotation, and called them "ASOs"
    029 * (Application State Objects). This service would be better named
    030 * "SessionStatePersistenceStrategySource" (but renaming it would cause backwards
    031 * compatibility issues).</em>
    032 */
    033@UsesMappedConfiguration(ApplicationStatePersistenceStrategy.class)
    034public interface ApplicationStatePersistenceStrategySource
    035{
    036    /**
    037     * Returns the named strategy.
    038     *
    039     * @param name of strategy to access
    040     * @return the strategy
    041     * @throws RuntimeException if the name does not match a configured strategy
    042     */
    043    ApplicationStatePersistenceStrategy get(String name);
    044}