001// Copyright 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.record; 016 017import java.util.Collection; 018 019import org.apache.tapestry.engine.ServiceEncoding; 020 021/** 022 * A source for {@link org.apache.tapestry.record.PropertyPersistenceStrategy}s. 023 * 024 * @author Howard M. Lewis Ship 025 * @since 4.0 026 */ 027public interface PropertyPersistenceStrategySource 028{ 029 /** 030 * Returns the name strategy. 031 * 032 * @param name 033 * the name of the strategy to retrieve. 034 * @throws org.apache.hivemind.ApplicationRuntimeException 035 * if no such strategy exists. 036 */ 037 public PropertyPersistenceStrategy getStrategy(String name); 038 039 /** 040 * Returns all changes ({@link PropertyChange}) collected by any persistence strategy for the 041 * page. May return an empty list. 042 * 043 * @see PropertyPersistenceStrategy#getStoredChanges(String) 044 */ 045 046 public Collection getAllStoredChanges(String pageName); 047 048 /** 049 * Discards any stored property changes for the named page. 050 */ 051 052 public void discardAllStoredChanged(String pageName); 053 054 /** 055 * Invoked by a {@link org.apache.tapestry.services.LinkFactory} , the parameters may be 056 * modified (added to) to store information related to persistent properties. This method is 057 * forwarded to all {@link PropertyPersistenceStrategy}s. 058 * 059 * @param encoding 060 * Service encoding, which indentifies the URL and the query parameters from which 061 * the {@link org.apache.tapestry.engine.ILink} will be created. 062 * @param post 063 * if true, then the link will be used for a post (not a get, i.e., for a HTML form); 064 * this may affect what information is encoded into the link 065 * @see PropertyPersistenceStrategySource 066 */ 067 068 public void addParametersForPersistentProperties(ServiceEncoding encoding, boolean post); 069}