org.jgroups.protocols
Class SMCAST

java.lang.Object
  org.jgroups.stack.Protocol
      org.jgroups.protocols.SMCAST

public class SMCAST
extends org.jgroups.stack.Protocol

Simple Multicast Protocol. This protocol provides multicast communication by means of a simple multiple unicast scheme.

Author:

Gerard Paris Aixala

Field Summary

Fields inherited from class org.jgroups.stack.Protocol

down_prot, log, props, stack, stats, up_prot

Constructor Summary

SMCAST()

Method Summary

java.lang.Object	down(org.jgroups.Event evt) An event is to be sent down the stack.
java.lang.String	getName()
boolean	setProperties(java.util.Properties props)
void	start()
void	stop()
java.lang.Object	up(org.jgroups.Event evt) An event was received from the layer below.

Methods inherited from class org.jgroups.stack.Protocol

destroy, downThreadEnabled, dumpStats, enableStats, getDownProtocol, getProperties, getUpProtocol, init, printStats, providedDownServices, providedUpServices, requiredDownServices, requiredUpServices, resetStats, setDownProtocol, setPropertiesInternal, setProtocolStack, setUpProtocol, statsEnabled, upThreadEnabled

Methods inherited from class java.lang.Object

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

Constructor Detail

SMCAST

public SMCAST()

Method Detail

down

public java.lang.Object down(org.jgroups.Event evt)

An event is to be sent down the stack. The layer may want to examine its type and perform some action on it, depending on the event's type. If the event is a message MSG, then the layer may need to add a header to it (or do nothing at all) before sending it down the stack using down_prot.down(). In case of a GET_ADDRESS event (which tries to retrieve the stack's address from one of the bottom layers), the layer may need to send a new response event back up the stack using up_prot.up().

Overrides:

down in class org.jgroups.stack.Protocol

getName

public java.lang.String getName()

Specified by:

getName in class org.jgroups.stack.Protocol

setProperties

public boolean setProperties(java.util.Properties props)

Overrides:

setProperties in class org.jgroups.stack.Protocol

start

public void start()
           throws java.lang.Exception

Overrides:

start in class org.jgroups.stack.Protocol

Throws:

java.lang.Exception

stop

public void stop()

Overrides:

stop in class org.jgroups.stack.Protocol

up

public java.lang.Object up(org.jgroups.Event evt)

An event was received from the layer below. Usually the current layer will want to examine the event type and - depending on its type - perform some computation (e.g. removing headers from a MSG event type, or updating the internal membership list when receiving a VIEW_CHANGE event). Finally the event is either a) discarded, or b) an event is sent down the stack using down_prot.down() or c) the event (or another event) is sent up the stack using up_prot.up().

Overrides:

up in class org.jgroups.stack.Protocol