    001    // Copyright 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
    015    package org.apache.tapestry5.internal.hibernate;
    016
    017    import org.apache.tapestry5.annotations.ImmutableSessionPersistedObject;
    018    import org.hibernate.Session;
    019
    020    import java.io.Serializable;
    021
    022    /**
    023     * Encapsulates a Hibernate entity name with an entity id.
    024     */
    025    @ImmutableSessionPersistedObject
    026    public class PersistedEntity implements Serializable
    027    {
    028        private static final long serialVersionUID = 897120520279686518L;
    029
    030        private final String entityName;
    031
    032        private final Serializable id;
    033
    034        public PersistedEntity(String entityName, Serializable id)
    035        {
    036            this.entityName = entityName;
    037            this.id = id;
    038        }
    039
    040        public Object restore(Session session)
    041        {
    042            try
    043            {
    044                return session.get(entityName, id);
    045            }
    046            catch (Exception ex)
    047            {
    048                throw new RuntimeException(HibernateMessages.sessionPersistedEntityLoadFailure(entityName, id, ex));
    049            }
    050        }
    051
    052        @Override
    053        public String toString()
    054        {
    055            return String.format("<PersistedEntity: %s(%s)>", entityName, id);
    056        }
    057    }