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public interface MembershipListener
Allows a listener to be notified when group membership changes.
These callbacks are used in PullPushAdapter
.
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.
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.
Method Summary | |
---|---|
void |
block()
Called (usually by the FLUSH protocol), as an indication that the member should stop sending messages. |
void |
suspect(Address suspected_mbr)
Called whenever a member is suspected of having crashed, but has not yet been excluded. |
void |
viewAccepted(View new_view)
Called when a change in membership has occurred. |
Method Detail |
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void viewAccepted(View new_view)
Channel.connect(String)
returns.
void suspect(Address suspected_mbr)
void block()
ExtendedMembershipListener.unblock()
.
Note that block() is the equivalent of reception of a BlockEvent in the pull mode.
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