| /* |
| * Copyright 2005-2008 Les Hazlewood |
| * |
| * 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.jsecurity.web.attr; |
| |
| import javax.servlet.ServletRequest; |
| import javax.servlet.ServletResponse; |
| |
| /** |
| * A <tt>WebAttribute</tt> is a storage mechanism for a single object accessible during a web request. |
| * |
| * <p>It is used to make objects associated with the transient request persistent beyond the request so that they can |
| * be retrieved upon a later request. |
| * |
| * @author Les Hazlewood |
| * @since 0.2 |
| */ |
| public interface WebAttribute<T> { |
| |
| T retrieveValue( ServletRequest request, ServletResponse response ); |
| |
| void storeValue( T value, ServletRequest request, ServletResponse response ); |
| |
| void removeValue( ServletRequest request, ServletResponse response ); |
| } |