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. 014 015 package org.apache.tapestry; 016 017 /** 018 * A particular type of component usuable with the action service. 019 * 020 * @author Howard Lewis Ship 021 * @since 1.0.1 022 * @deprecated To be removed in 4.1 with no replacement. 023 */ 024 025 public interface IAction extends IComponent 026 { 027 /** 028 * Returns true if the component requires an existing, not new, 029 * {@link javax.servlet.http.HttpSession} to operate. Components who are not dependant on page 030 * state (or the visit object) are non-stateful and can return false. 031 */ 032 033 public boolean getRequiresSession(); 034 }