    001    // Copyright 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
    015    package org.apache.tapestry5.services;
    016
    017    import org.apache.tapestry5.ioc.annotations.UsesMappedConfiguration;
    018
    019    /**
    020     * Used to provide access to {@link org.apache.tapestry5.services.ApplicationStatePersistenceStrategySource} instances
    021     * via a logical name for the stategy, such as "session".
    022     */
    023    @UsesMappedConfiguration(ApplicationStatePersistenceStrategy.class)
    024    public interface ApplicationStatePersistenceStrategySource
    025    {
    026        /**
    027         * Returns the named strategy.
    028         *
    029         * @param name of strategy to access
    030         * @return the strategy
    031         * @throws RuntimeException if the name does not match a configured strategy
    032         */
    033        ApplicationStatePersistenceStrategy get(String name);
    034    }