Package org.jgroups

Class ExtendedReceiverAdapter

java.lang.Object
org.jgroups.ExtendedReceiverAdapter
All Implemented Interfaces:
ExtendedMembershipListener, ExtendedMessageListener, ExtendedReceiver, MembershipListener, MessageListener, Receiver
Direct Known Subclasses:
Draw
public class ExtendedReceiverAdapter extends Object implements ExtendedReceiver
Version:
$Id: ExtendedReceiverAdapter.java,v 1.6 2006/10/11 14:34:36 belaban Exp $
Author:
Bela Ban

  • Constructor Summary

    Constructors
    Constructor
    Description
    ExtendedReceiverAdapter()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    block()
    Called (usually by the FLUSH protocol), as an indication that the member should stop sending messages.
    byte[]
    getState()
    Answers the group state; e.g., when joining.
    void
    getState(OutputStream ostream)
    Allows an application to write a state through a provided OutputStream.
    byte[]
    getState(String state_id)
    Allows an application to provide a partial state as a byte array
    void
    getState(String state_id, OutputStream ostream)
    Allows an application to write a partial state through a provided OutputStream.
    void
    receive(Message msg)
    Called when a message is received.
    void
    setState(byte[] state)
    Sets the group state; e.g., when joining.
    void
    setState(InputStream istream)
    Allows an application to read a state through a provided InputStream.
    void
    setState(String state_id, byte[] state)
    Allows an application to read a partial state indicated by state_id from a given state byte array parameter.
    void
    setState(String state_id, InputStream istream)
    Allows an application to read a partial state through a provided InputStream.
    void
    suspect(Address suspected_mbr)
    Called whenever a member is suspected of having crashed, but has not yet been excluded.
    void
    unblock()
    Called after the FLUSH protocol has unblocked previously blocked senders, and messages can be sent again.
    void
    viewAccepted(View new_view)
    Called when a change in membership has occurred.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • ExtendedReceiverAdapter

      public ExtendedReceiverAdapter()

  • Method Details

    • getState

      public byte[] getState(String state_id)
      Description copied from interface: ExtendedMessageListener
      Allows an application to provide a partial state as a byte array
      Specified by:
      getState in interface ExtendedMessageListener
      Parameters:
      state_id - id of the partial state requested
      Returns:
      partial state for the given state_id

    • setState

      public void setState(String state_id, byte[] state)
      Description copied from interface: ExtendedMessageListener
      Allows an application to read a partial state indicated by state_id from a given state byte array parameter.
      Specified by:
      setState in interface ExtendedMessageListener
      Parameters:
      state_id - id of the partial state requested
      state - partial state for the given state_id

    • 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

    • unblock

      public void unblock()
      Description copied from interface: ExtendedMembershipListener
      Called after the FLUSH protocol has unblocked previously blocked senders, and messages can be sent again. This callback only needs to be implemented if we require a notification of that.
      Specified by:
      unblock in interface ExtendedMembershipListener

    • getState

      public void getState(OutputStream ostream)
      Description copied from interface: ExtendedMessageListener
      Allows an application to write a state through a provided OutputStream. An application is obligated to always close the given OutputStream reference.
      Specified by:
      getState in interface ExtendedMessageListener
      Parameters:
      ostream - the OutputStream
      See Also:

    • getState

      public void getState(String state_id, OutputStream ostream)
      Description copied from interface: ExtendedMessageListener
      Allows an application to write a partial state through a provided OutputStream. An application is obligated to always close the given OutputStream reference.
      Specified by:
      getState in interface ExtendedMessageListener
      Parameters:
      state_id - id of the partial state requested
      ostream - the OutputStream
      See Also:

    • setState

      public void setState(InputStream istream)
      Description copied from interface: ExtendedMessageListener
      Allows an application to read a state through a provided InputStream. An application is obligated to always close the given InputStream reference.
      Specified by:
      setState in interface ExtendedMessageListener
      Parameters:
      istream - the InputStream
      See Also:

    • setState

      public void setState(String state_id, InputStream istream)
      Description copied from interface: ExtendedMessageListener
      Allows an application to read a partial state through a provided InputStream. An application is obligated to always close the given InputStream reference.
      Specified by:
      setState in interface ExtendedMessageListener
      Parameters:
      state_id - id of the partial state requested
      istream - the InputStream
      See Also: