/interpreter/tags/at2-build190607/src/edu/vub/at/actors/ATAsyncMessage.java
Java | 67 lines | 9 code | 5 blank | 53 comment | 0 complexity | 27917adae2acacd016b76cfbe9f5063c MD5 | raw file
1/** 2 * AmbientTalk/2 Project 3 * ATAsyncMessage.java created on 31-jul-2006 at 12:16:22 4 * (c) Programming Technology Lab, 2006 - 2007 5 * Authors: Tom Van Cutsem & Stijn Mostinckx 6 * 7 * Permission is hereby granted, free of charge, to any person 8 * obtaining a copy of this software and associated documentation 9 * files (the "Software"), to deal in the Software without 10 * restriction, including without limitation the rights to use, 11 * copy, modify, merge, publish, distribute, sublicense, and/or 12 * sell copies of the Software, and to permit persons to whom the 13 * Software is furnished to do so, subject to the following 14 * conditions: 15 * 16 * The above copyright notice and this permission notice shall be 17 * included in all copies or substantial portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 21 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 22 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 23 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 24 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 25 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 26 * OTHER DEALINGS IN THE SOFTWARE. 27 */ 28package edu.vub.at.actors; 29 30import edu.vub.at.exceptions.InterpreterException; 31import edu.vub.at.objects.ATMessage; 32import edu.vub.at.objects.ATObject; 33 34/** 35 * Instances of the class ATAsyncMessage represent first-class asynchronous message sends. 36 * They encapsulate a receiver object, a selector symbol and a table of arguments. 37 * Additionally, a message -- being a first-class object, may be extended with extra fields and behaviour (attachments). 38 * 39 * @author tvc 40 */ 41public interface ATAsyncMessage extends ATMessage { 42 43 /** 44 * Messages also have an explicitly named receiver, which may either be a local 45 * object, or a representative of an object inside another actor. 46 * @return the receiver of the message 47 */ 48 public ATObject base_getReceiver() throws InterpreterException; 49 50 /** 51 * This method is responsible for processing the message in a certain actor. 52 * By default, process invokes the method corresponding to its selector: 53 * 54 * def process(receiver) { 55 * (reflect: receiver).invoke(receiver, self.selector, self.arguments) 56 * } 57 * 58 * @param receiver the object that has been designated to receive the message 59 */ 60 public ATObject base_process(ATObject receiver) throws InterpreterException; 61 62 /** 63 * The primitive implementation of base_process. 64 * @param self the ambienttalk object that originally received the 'process' message. 65 */ 66 public ATObject prim_process(ATAsyncMessage self, ATObject receiver) throws InterpreterException; 67}