public class MERGE2 extends Protocol
This protocol works as follows:
Requires: FIND_INITIAL_MBRS event from below
Provides: sends MERGE event with list of coordinators up the stack
Constructor | Description |
---|---|
MERGE2() |
Modifier and Type | Method | Description |
---|---|---|
java.lang.Object |
down(Event evt) |
An event is to be sent down the stack.
|
long |
getMaxInterval() |
|
long |
getMinInterval() |
|
java.lang.String |
getName() |
|
boolean |
getSuspended() |
|
void |
init() |
Called after instance has been created (null constructor) and before protocol is started.
|
java.util.Vector<java.lang.Integer> |
requiredDownServices() |
List of events that are required to be answered by some layer below.
|
void |
resumeMergeTask() |
Resumes the sending of merge multicast (only if coord)
|
void |
sendMergeSolicitation() |
Discovers members and detects whether we have multiple coordinator.
|
void |
setMaxInterval(long l) |
|
void |
setMinInterval(long i) |
|
boolean |
setProperties(java.util.Properties props) |
Configures the protocol initially.
|
void |
stop() |
This method is called on a
Channel.disconnect() . |
void |
suspendMergeTask() |
Suspends the sending of merge multicasts (only if coord)
|
java.lang.Object |
up(Event evt) |
An event was received from the layer below.
|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
destroy, downThreadEnabled, dumpStats, enableStats, getDownProtocol, getProperties, getProtocolStack, getThreadFactory, getTransport, getUpProtocol, printStats, providedDownServices, providedUpServices, requiredUpServices, resetStats, setDownProtocol, setPropertiesInternal, setProtocolStack, setUpProtocol, start, statsEnabled, upThreadEnabled
public void init() throws java.lang.Exception
Protocol
public long getMinInterval()
public void setMinInterval(long i)
public long getMaxInterval()
public void setMaxInterval(long l)
public boolean getSuspended()
public boolean setProperties(java.util.Properties props)
Protocol
"loopback=false;unicast_inport=4444"
setProperties
in class Protocol
public java.util.Vector<java.lang.Integer> requiredDownServices()
Protocol
requiredDownServices
in class Protocol
public void stop()
Protocol
Channel.disconnect()
. Stops work (e.g. by closing multicast socket).
Will be called from top to bottom. This means that at the time of the method invocation the
neighbor protocol below is still working. This method will replace the
STOP, STOP_OK, CLEANUP and CLEANUP_OK events. The ProtocolStack guarantees that
when this method is called all messages in the down queue will have been flushedpublic java.lang.Object up(Event evt)
Protocol
down_prot.down()
or c) the event (or another event) is sent up
the stack using up_prot.up()
.public java.lang.Object down(Event evt)
Protocol
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()
.public void suspendMergeTask()
public void resumeMergeTask()
public void sendMergeSolicitation()
Copyright ? 1998-2008 Bela Ban. All Rights Reserved.