/* ========================================================================= * * The Apache Software License, Version 1.1 * * ========================================================================= * * Copyright (C) 1999-2003 The Apache Software Foundation. * * All rights reserved. * * * * Redistribution and use in source and binary forms, with or without * * modification, are permitted provided that the following conditions are * * met: * * * * 1. Redistributions of source code must retain the above copyright notice, * * this list of conditions and the following disclaimer. * * * * 2. Redistributions in binary form must reproduce the above copyright * * notice, this list of conditions and the following disclaimer in the * * documentation and/or other materials provided with the distribution. * * * * 3. The end-user documentation included with the redistribution, if any, * * must include the following acknowledgment: * * * * "This product includes software developed by the * * Apache Software Foundation ." * * * * Alternately, this acknowledgment may appear in the software itself, if * * and wherever such third-party acknowledgments normally appear. * * * * 4. The names "Apache Cocoon" and "Apache Software Foundation" must not be * * used to endorse or promote products derived from this software without * * prior written permission. For written permission, please contact * * . * * * * 5. Products derived from this software may not be called "Apache", nor * * may "Apache" appear in their name, without prior written permission of * * the Apache Software Foundation. * * * * ------------------------------------------------------------------------- * * * * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED WARRANTIES * * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY * * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL * * THE APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY * * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGE * * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVI- * * CES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABI- * * LITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * * DAMAGE. * * * * This software consists of voluntary contributions made by many individua- * * ls on behalf of the Apache Software Foundation and was originally created * * by Stefano Mazzocchi . For more information * * about the Apache Software Foundation please see . * * * * ------------------------------------------------------------------------- */ /** *

* Representation of continuations in a Web environment. *

* *

* Because a user may click on the back button of the browser and restart a * saved computation in a continuation, each WebContinuation * becomes the parent of a subtree of continuations. *

* *

* If there is no parent WebContinuation, the created * continuation becomes the root of a tree of WebContinuations. *

* *

*

*
Authors:
*
* Christopher Oliver. *
*
Copyright:
*
* Copyright © 2002-2003 * The Apache Software Foundation. * All rights reserved. *
*
*

*/ interface WebContinuation { /** * Unguessable unique identifier of this object. */ readonly attribute string id; /** * Current continuation. */ readonly attribute cocoon::Continuation continuation; /** * Deletes this continuation together with all of its children. */ void invalidate(); /** * Debugging aid that displays the tree of continuations rooted * in this object. */ void display(); };