| // Copyright 2005 The Apache Software Foundation |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package org.apache.tapestry.engine.state; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * The application scope is for objects that are global to all users and all sessions. |
| * Traditionally, that's stored in the servlet context, but there's no advantage to doing that over |
| * just using a Map. |
| * |
| * @author Howard M. Lewis Ship |
| * @since 4.0 |
| */ |
| public class ApplicationScopeManager implements StateObjectPersistenceManager |
| { |
| private Map _objects = new HashMap(); |
| |
| public synchronized boolean exists(String objectName) |
| { |
| return false; |
| } |
| |
| public synchronized Object get(String objectName, StateObjectFactory factory) |
| { |
| Object result = _objects.get(objectName); |
| |
| if (result == null) |
| { |
| result = factory.createStateObject(); |
| _objects.put(objectName, result); |
| } |
| |
| return result; |
| } |
| |
| public synchronized void store(String objectName, Object stateObject) |
| { |
| _objects.put(objectName, stateObject); |
| } |
| |
| } |