edu.vub.at.actors.net.cmd
Class CMDProvideService

java.lang.Object
  edu.vub.at.actors.net.cmd.VMCommand
      edu.vub.at.actors.net.cmd.CMDProvideService

All Implemented Interfaces:

java.io.Serializable

public class CMDProvideService

extends VMCommand

A CMDProvideService message is sent asynchronously to all connected VMs when an actor on the sender VM provided a new publication. Connected VMs are notified of this such that they can match this new publication with local subscriptions. SENDER: the VM that provides a new publication RECEIVER: all connected VMs MODE: ASYNCHRONOUS, MULTICAST PROPERTIES: the subscription info: topic and provided service object REPLY: none

Author:

tvcutsem

See Also:

Serialized Form

Field Summary

private Packet	serializedService_
private Packet	serializedTopic_

Fields inherited from class edu.vub.at.actors.net.cmd.VMCommand

_TRANSMISSION_TIMEOUT_

Constructor Summary

CMDProvideService(Packet topic, Packet service)

Method Summary

void	send(org.jgroups.blocks.MessageDispatcher dispatcher)
java.lang.Object	uponReceiptBy(ELVirtualMachine remoteHost, org.jgroups.Message wrapper) When a remote VM receives the notification, it checks whether any local subscriptions can be matched with the new published service.

Methods inherited from class edu.vub.at.actors.net.cmd.VMCommand

sendAsyncMulticast, sendAsyncUnicast, sendSynchronousUnicast, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

serializedTopic_

private final Packet serializedTopic_

serializedService_

private final Packet serializedService_

Constructor Detail

CMDProvideService

public CMDProvideService(Packet topic,
                         Packet service)

Method Detail

send

public void send(org.jgroups.blocks.MessageDispatcher dispatcher)

uponReceiptBy

public java.lang.Object uponReceiptBy(ELVirtualMachine remoteHost,
                                      org.jgroups.Message wrapper)
                               throws java.lang.Exception

When a remote VM receives the notification, it checks whether any local subscriptions can be matched with the new published service.

Specified by:

uponReceiptBy in class VMCommand

Parameters:

remoteHost - the host at which the command arrived and is executed

wrapper - the JGroups message wrapper that was used to transport this command object

Throws:

java.lang.Exception