001// Copyright 2006, 2007 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.internal.services; 016 017import org.apache.tapestry5.services.Request; 018import org.apache.tapestry5.services.Session; 019 020/** 021 * A strategy for storing persistent page properties into the {@link Session session}. 022 * <p/> 023 * Builds attribute names as: <code>state:<em>page-name</em>:<em>component-id</em>:<em>field-name</em></code> 024 */ 025 026public class SessionPersistentFieldStrategy extends AbstractSessionPersistentFieldStrategy 027{ 028 /** 029 * Prefix used to identify keys stored in the session that are being used to store persistent field data. 030 */ 031 static final String PREFIX = "state:"; 032 033 public SessionPersistentFieldStrategy(Request request) 034 { 035 super(PREFIX, request); 036 } 037}