Package org.jgroups.blocks

Class MembershipListenerAdapter

java.lang.Object
org.jgroups.blocks.MembershipListenerAdapter
All Implemented Interfaces:
MembershipListener
public class MembershipListenerAdapter extends Object implements MembershipListener
This class provides multiplexing possibilities for MembershipListener instances. Usually, we have more than one instance willing to listen to membership messages. PullPushAdapter allows only one instance of MembershipListener to be registered for message notification. With help of this class you can overcome this limitation.
Author:
Roman Rokytskyy (rrokytskyy@acm.org)

  • Field Details

    • membershipListeners

      protected final HashSet membershipListeners

    • membershipListenersCache

      protected MembershipListener[] membershipListenersCache

  • Constructor Details

    • MembershipListenerAdapter

      public MembershipListenerAdapter()

  • Method Details

    • block

      public void block()
      Notify membership listeners to temporarily stop sending messages into a channel. This method in turn calls same method of all registered membership listener.
      Specified by:
      block in interface MembershipListener

    • unblock

      public void unblock()

    • suspect

      public void suspect(Address suspected_mbr)
      Notify membership listener that some node was suspected. This method in turn passes suspected member address to all registered membership listeners.
      Specified by:
      suspect in interface MembershipListener

    • viewAccepted

      public void viewAccepted(View new_view)
      Notify membership listener that new view was accepted. This method in turn passes new view to all registered membership listeners.
      Specified by:
      viewAccepted in interface MembershipListener

    • addMembershipListener

      public void addMembershipListener(MembershipListener listener)
      Add membership listener to this adapter. This method registers listener to be notified when membership event is generated.
      Parameters:
      listener - instance of MembershipListener that should be added to this adapter.

    • removeMembershipListener

      public void removeMembershipListener(MembershipListener listener)
      Remove membership listener from this adapter. This method deregisters listener from notification when membership event is generated.
      Parameters:
      listener - instance of MembershipListener that should be removed from this adapter.