Class ChatCore

java.lang.Object
org.jgroups.demos.ChatCore
All Implemented Interfaces:
MembershipListener, MessageListener
Direct Known Subclasses:
Chat

public abstract class ChatCore extends Object implements MessageListener, MembershipListener
  • Constructor Details

    • ChatCore

      public ChatCore(String props)
  • Method Details

    • link

      public void link()
    • dumpHist

      public void dumpHist()
    • receive

      public void receive(Message msg)
      Description copied from interface: MessageListener
      Called when a message is received.
      Specified by:
      receive in interface MessageListener
      Parameters:
      msg -
    • getState

      public byte[] getState()
      Description copied from interface: MessageListener
      Answers the group state; e.g., when joining.
      Specified by:
      getState in interface MessageListener
      Returns:
      byte[]
    • setState

      public void setState(byte[] state)
      Description copied from interface: MessageListener
      Sets the group state; e.g., when joining.
      Specified by:
      setState in interface MessageListener
      Parameters:
      state -
    • viewAccepted

      public void viewAccepted(View new_view)
      Description copied from interface: MembershipListener
      Called when a change in membership has occurred. No long running actions or sending of messages should be done in this callback. If some long running action needs to be performed, it should be done in a separate thread.

      Note that on reception of the first view (a new member just joined), the channel will not yet be in the connected state. This only happens when Channel.connect(String) returns.

      Specified by:
      viewAccepted in interface MembershipListener
    • suspect

      public void suspect(Address suspected_mbr)
      Description copied from interface: MembershipListener
      Called whenever a member is suspected of having crashed, but has not yet been excluded.
      Specified by:
      suspect in interface MembershipListener
    • block

      public void block()
      Description copied from interface: MembershipListener
      Called (usually by the FLUSH protocol), as an indication that the member should stop sending messages. Any messages sent after returning from this callback might get blocked by the FLUSH protocol. When the FLUSH protocol is done, and messages can be sent again, the FLUSH protocol will simply unblock all pending messages. If a callback for unblocking is desired, implement ExtendedMembershipListener.unblock(). Note that block() is the equivalent of reception of a BlockEvent in the pull mode.
      Specified by:
      block in interface MembershipListener
    • stop

      public void stop()
    • disconnect

      public void disconnect()
    • close

      public void close()
    • handleLeave

      protected void handleLeave()
    • handleSend

      protected void handleSend(String txt)