    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
    015    package org.apache.tapestry5.services;
    016
    017    import 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")
    024    public 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    }