Class DELAY

java.lang.Object
org.jgroups.stack.Protocol
org.jgroups.protocols.DELAY

public class DELAY extends Protocol
Delays incoming/outgoing messages by a random number of milliseconds (range between 0 and n where n is determined by the user). Incoming messages can be delayed independently from outgoing messages (or not delayed at all).

This protocol should be inserted directly above the bottommost protocol (e.g. UDP).

  • Constructor Details

    • DELAY

      public DELAY()
  • Method Details

    • getName

      public String getName()
      All protocol names have to be unique !
      Specified by:
      getName in class Protocol
    • setProperties

      public boolean setProperties(Properties props)
      Description copied from class: Protocol
      Configures the protocol initially. A configuration string consists of name=value items, separated by a ';' (semicolon), e.g.:
       "loopback=false;unicast_inport=4444"
       
      Overrides:
      setProperties in class Protocol
    • getInDelay

      public int getInDelay()
    • setInDelay

      public void setInDelay(int in_delay)
    • getOutDelay

      public int getOutDelay()
    • setOutDelay

      public void setOutDelay(int out_delay)
    • up

      public Object up(Event evt)
      Description copied from class: Protocol
      An event was received from the layer below. Usually the current layer will want to examine the event type and - depending on its type - perform some computation (e.g. removing headers from a MSG event type, or updating the internal membership list when receiving a VIEW_CHANGE event). Finally the event is either a) discarded, or b) an event is sent down the stack using down_prot.down() or c) the event (or another event) is sent up the stack using up_prot.up().
      Overrides:
      up in class Protocol
    • down

      public Object down(Event evt)
      Description copied from class: Protocol
      An event is to be sent down the stack. The layer may want to examine its type and perform some action on it, depending on the event's type. If the event is a message MSG, then the layer may need to add a header to it (or do nothing at all) before sending it down the stack using down_prot.down(). In case of a GET_ADDRESS event (which tries to retrieve the stack's address from one of the bottom layers), the layer may need to send a new response event back up the stack using up_prot.up().
      Overrides:
      down in class Protocol