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.simple; 016 017import java.io.Serializable; 018 019import org.apache.tapestry.contrib.table.model.ITableColumnModel; 020import org.apache.tapestry.contrib.table.model.ITableDataModel; 021import org.apache.tapestry.contrib.table.model.ITableModel; 022import org.apache.tapestry.contrib.table.model.ITableSessionStateManager; 023 024/** 025 * A {@link org.apache.tapestry.contrib.table.model.ITableSessionStateManager} 026 * implementation that saves only the paging and sorting state of the table model 027 * into the session. 028 * 029 * @author mindbridge 030 */ 031public class SimpleTableSessionStateManager 032 implements ITableSessionStateManager 033{ 034 private ITableDataModel m_objDataModel; 035 private ITableColumnModel m_objColumnModel; 036 037 public SimpleTableSessionStateManager( 038 ITableDataModel objDataModel, 039 ITableColumnModel objColumnModel) 040 { 041 m_objDataModel = objDataModel; 042 m_objColumnModel = objColumnModel; 043 } 044 045 /** 046 * @see org.apache.tapestry.contrib.table.model.ITableSessionStateManager#getSessionState(ITableModel) 047 */ 048 public Serializable getSessionState(ITableModel objModel) 049 { 050 SimpleTableModel objSimpleModel = (SimpleTableModel) objModel; 051 return objSimpleModel.getState(); 052 } 053 054 /** 055 * @see org.apache.tapestry.contrib.table.model.ITableSessionStateManager#recreateTableModel(Serializable) 056 */ 057 public ITableModel recreateTableModel(Serializable objState) 058 { 059 if (objState == null) 060 return null; 061 SimpleTableState objSimpleState = (SimpleTableState) objState; 062 return new SimpleTableModel( 063 m_objDataModel, 064 m_objColumnModel, 065 objSimpleState); 066 } 067 068}