Package org.opennms.core.ipc.twin.common

Class TwinTracker

  • public class TwinTracker
extends java.lang.Object
    This Tracks Twin Object Updates for a given SessionKey (key, location). Twin Tracker consists of marshalled object( byte[]), version and sessionId. Version is incremented whenever object updates. sessionId is created only once per a SessionKey. TwinTracker is created and updated by publisher and only consumed by Subscriber. Subscriber will ignore any stale updates based on version but resets version whenever there is new SessionId.

    • Constructor Summary

      Constructors 
      Constructor Description
      TwinTracker​(byte[] obj)  
      TwinTracker​(byte[] obj, int version, java.lang.String sessionId)  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      byte[] getObj()  
      java.lang.String getSessionId()  
      int getVersion()  
      int update​(byte[] obj)  

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • TwinTracker

        public TwinTracker​(byte[] obj)

      • TwinTracker

        public TwinTracker​(byte[] obj,
                   int version,
                   java.lang.String sessionId)

    • Method Detail

      • getVersion

        public int getVersion()

      • getObj

        public byte[] getObj()

      • getSessionId

        public java.lang.String getSessionId()

      • update

        public int update​(byte[] obj)