public interface MembershipListener
The MembershipListener interface is similar to the
MessageListener interface: every time
a new view, a suspicion message, or a block event is received, the corresponding method of the
class implementing MembershipListener will be called. MembershipListener is often used in JGroups
building blocks installed on top of a channel i.e RpcDispatcher and MessageDispatcher. Oftentimes
the only method containing any functionality will be viewAccepted() which notifies the receiver
that a new member has joined the group or that an existing member has left or crashed.
|Modifier and Type
|Method and Description
Called (usually by the FLUSH protocol), as an indication that the member should stop sending messages.
Called whenever a member is suspected of having crashed, but has not yet been excluded.
Called after the FLUSH protocol has unblocked previously blocked senders, and messages can be sent again.
Called when a change in membership has occurred.
void viewAccepted(View new_view)
void suspect(Address suspected_mbr)
unblock(). Note that block() is the equivalent
of reception of a BlockEvent in the pull mode.
Note that during new view installation we provide guarantee that unblock invocation strictly follows view installation at some node A belonging to that view . However, some other message M may squeeze in between view and unblock callbacks. For more details see https://jira.jboss.org/jira/browse/JGRP-986
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