001/* Marker interface for actors that operate on time-based signals. 002 003 Copyright (c) 2004-2012 The Regents of the University of California. 004 All rights reserved. 005 Permission is hereby granted, without written agreement and without 006 license or royalty fees, to use, copy, modify, and distribute this 007 software and its documentation for any purpose, provided that the above 008 copyright notice and the following two paragraphs appear in all copies 009 of this software. 010 011 IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY 012 FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES 013 ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF 014 THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF 015 SUCH DAMAGE. 016 017 THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, 018 INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 019 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE 020 PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF 021 CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, 022 ENHANCEMENTS, OR MODIFICATIONS. 023 024 PT_COPYRIGHT_VERSION_2 025 COPYRIGHTENDKEY 026 027 */ 028package ptolemy.actor; 029 030////////////////////////////////////////////////////////////////////////// 031//// TimedActor 032 033/** 034 This is a marker interface for actors that operate on time-based signals. 035 That is, logically, all signals observed or produced are tokens placed 036 in time. Actors that implement this marker interface can only be executed 037 by the directors that implement the TimedDirector interface. 038 039 @author Edward A. Lee 040 @version $Id$ 041 @since Ptolemy II 4.1 042 @Pt.ProposedRating Green (eal) 043 @Pt.AcceptedRating Green (bilung) 044 */ 045public interface TimedActor { 046}