    001// Copyright 2007, 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.services;
    016
    017import org.apache.tapestry5.ioc.internal.util.InternalUtils;
    018
    019/**
    020 * A contribution to the configuration of the {@link ApplicationStateManager}, identifying the strategy and creator for
    021 * a particular Session State Object (SSO), identified by the SSO's class.
    022 */
    023@SuppressWarnings("all")
    024public final class ApplicationStateContribution
    025{
    026    private final String strategy;
    027
    028    private final ApplicationStateCreator creator;
    029
    030    public ApplicationStateContribution(String strategy)
    031    {
    032        this(strategy, null);
    033    }
    034
    035    public ApplicationStateContribution(String strategy, ApplicationStateCreator creator)
    036    {
    037        assert InternalUtils.isNonBlank(strategy);
    038        this.strategy = strategy;
    039        this.creator = creator;
    040    }
    041
    042    /**
    043     * The creator for the ASO. If null, the the ASO is created directly from the ASO class, via its public no-arguments
    044     * constructor.
    045     */
    046    public ApplicationStateCreator getCreator()
    047    {
    048        return creator;
    049    }
    050
    051    /**
    052     * The name of the strategy used to control where the ASO is stored.
    053     */
    054    public String getStrategy()
    055    {
    056        return strategy;
    057    }
    058
    059}