001// Copyright 2004, 2005 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.tapestry.contrib.table.model; 016 017import java.io.Serializable; 018 019/** 020 * An interface responsible for determining <b>what</b> data would be stored 021 * in the session between requests. 022 * It could be only the table state, it could be entire table including the data, 023 * or it could be nothing at all. 024 * It is all determined by the implemention of this interface. 025 * 026 * @author mindbridge 027 */ 028public interface ITableSessionStateManager 029{ 030 031 /** 032 * Method getSessionState extracts the "persistent" portion of the table model 033 * @param objModel the table model to extract the session state from 034 * @return Object the session state to be saved between the requests 035 */ 036 Serializable getSessionState(ITableModel objModel); 037 038 /** 039 * Method recreateTableModel recreates a table model from the saved session state 040 * @param objState the saved session state 041 * @return ITableModel the recreated table model 042 */ 043 ITableModel recreateTableModel(Serializable objState); 044}