/interpreter/tags/at2dist160410/src/edu/vub/at/actors/net/cmd/CMDObjectTakenOffline.java
Java | 70 lines | 22 code | 8 blank | 40 comment | 0 complexity | 119c955968c747a007378dc939b126fc MD5 | raw file
1/** 2 * AmbientTalk/2 Project 3 * CMDObjectTakenOffline.java 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.net.cmd; 29 30import edu.vub.at.actors.id.ATObjectID; 31import edu.vub.at.actors.natives.ELVirtualMachine; 32import edu.vub.at.actors.net.comm.Address; 33import edu.vub.at.actors.net.comm.CommunicationBus; 34 35/** 36 * A CMDObjectTakenOffline command is sent asynchronously to all connected VMs when 37 * an actor on the sender VM takes one of its objects offline. Connected VMs are notified 38 * of this event so that they can check if they had a far remote reference to the offline object. 39 * 40 * SENDER: the VM that takes an object offline 41 * RECEIVER: all connected VMs 42 * MODE: ASYNCHRONOUS, MULTICAST 43 * PROPERTIES: objectID of the offline object 44 * REPLY: none 45 * 46 * @author egonzale 47 */ 48public class CMDObjectTakenOffline extends VMCommand{ 49 50 private static final long serialVersionUID = -4486874219940264597L; 51 52 private final ATObjectID senderObjectId_; 53 54 public CMDObjectTakenOffline(ATObjectID senderObjectId) { 55 super("objectTakenOffline"); 56 senderObjectId_ = senderObjectId; 57 } 58 59 public void send(CommunicationBus dispatcher, Address recipient) { 60 dispatcher.sendAsyncUnicast(this, recipient); 61 } 62 63 public void broadcast(CommunicationBus dispatcher) { 64 dispatcher.sendAsyncMulticast(this); 65 } 66 67 public void uponReceiptBy(ELVirtualMachine remoteHost, Address senderAddress) { 68 remoteHost.connectionManager_.notifyObjectTakenOffline(senderObjectId_); 69 } 70}