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Class JavaGroups.JavaStack.Protocols.PING 

java.lang.Object
   |
   +----JavaGroups.JavaStack.Protocol
           |
           +----JavaGroups.JavaStack.Protocols.PING
public class PING
extends Protocol
implements Runnable
The PING protocol layer serves 2 tasks: it retrieves the initial membership (used by the GMS when started) and it periodically mcasts a HELLO message. When the coordinator receives a HELLO message from a process that is currently not member, it will join that process to the group.

Constructor Index

o PING()

Method Index

o Down(Event)
An event is to be sent down the stack.
o GetName()
o run()
If IP multicast: periodically mcast a HELLO message If gossiping: periodically retrieve the membership.
o SetProperties(Properties)
Configures the protocol initially.
o Up(Event)
An event was received from the layer below.

Constructors

o PING 
 public PING()

Methods

o GetName 
 public String GetName()
Overrides:
GetName in class Protocol
o SetProperties 
 public void SetProperties(Properties props)
Configures the protocol initially.

Overrides:
SetProperties in class Protocol
o Up 
 public void Up(Event evt)
An event was received from the layer below.

Overrides:
Up in class Protocol
o Down 
 public void Down(Event evt)
An event is to be sent down the stack.

Overrides:
Down in class Protocol
o run 
 public void run()
If IP multicast: periodically mcast a HELLO message If gossiping: periodically retrieve the membership. Any members not part of our own membership are merged (passing MERGE event up). 

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