Examples of org.jboss.ha.framework.interfaces.DistributedState

org.jboss.ha.framework.interfaces.DistributedState

DistributedState is a service on top of HAPartition that provides a cluster-wide distributed state. The DistributedState (DS) service provides a <String category, Serializable key, Serializable value> tuple map. Thus, any service, application, container, ... can request its own DS "private space" by working* in its own category (a string name). You work in a category like a Dictionary: you set values by key within a category. Each time a value is added/modified/removed, the modification is made cluster-wide, on all other nodes. Reading values is always made locally (no network access!) Objects can also subscribe to DS events to be notified when values are modified/removed/added in a particular category. @author Sacha Labourey. @author Scott.Stark@jboss.org @version $Revision: 67692 $ @see HAPartition

    * @param value the distributed object
    * 
    */
   public void setDistributedState(String key, Serializable value) throws Exception
   {
      DistributedState ds = this.getHAPartition().getDistributedStateService();
      ds.set(this.getHAServiceKey(), key, value);
   }

    * @return Serializable the distributed object
    * 
    */
   public Serializable getDistributedState(String key)
   {
      DistributedState ds = this.getHAPartition().getDistributedStateService();
      return ds.get(this.getHAServiceKey(), key);
   }

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