Examples of com.sun.sgs.app.DataManager.createReference()

com.sun.sgs.app.DataManager.createReference()
Creates a managed reference to an object, storing the object in the data manager if it is transient. Applications should use managed references when a managed object refers to another managed object, either directly or indirectly through non-managed objects. @param < T> the type of the object @param object the object @return the managed reference @throws IllegalArgumentException if object does notimplement both {@link ManagedObject} and {@link Serializable} @throws ObjectNotFoundException if the object has been removed @throws TransactionException if the operation failed because of aproblem with the current transaction

           just keep a reference...otherwise, we make it part of our
           state, which has the effect of persisting the task. In either
           case we set one of the two fields to null to disambiguate
           what the situation is. */
        if (t instanceof ManagedObject) {
            taskRef = dm.createReference(t); 
            task = null;
        } else {
            task = t;
            taskRef = null;
        }

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            this.type     = type;
            this.clientID = clientID;
        
            // create references
            DataManager dm = AppContext.getDataManager();
            channelRef     = dm.createReference(channel);
        }
        
        public ConnectionType getClientType() {
            return type;
        }

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            Set<WonderlandClientID> out = new LinkedHashSet<WonderlandClientID>();


            for (Iterator<ClientSession> i = channelRef.get().getSessions();
                 i.hasNext();)
            {
                ManagedReference<ClientSession> ref = dm.createReference(i.next());
                out.add(new WonderlandClientID(ref));
            }
            
            return out;
        }

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            dm.markForUpdate(this);


            // add to the map
            HandlerRecord record = new HandlerRecord();
            record.ref = ref;
            record.channel  = dm.createReference(channel);
            record.sessions = dm.createReference(sessions);
            record.clientID = assignID;
            handlers.put(handler.getConnectionType(), record);
            
            return record.clientID;

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            // add to the map
            HandlerRecord record = new HandlerRecord();
            record.ref = ref;
            record.channel  = dm.createReference(channel);
            record.sessions = dm.createReference(sessions);
            record.clientID = assignID;
            handlers.put(handler.getConnectionType(), record);
            
            return record.clientID;
        }

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        public ManagedClientHandlerRef(ClientConnectionHandler handler) {
            super (null);
            
            DataManager dm = AppContext.getDataManager();
            ref = dm.createReference(handler);
        }
        
        @Override
        public ClientConnectionHandler get() {
            return ref.get();

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     * session
     * @param session the session connected to this listener
     */
    public WonderlandSessionListener(ClientSession session) {
        DataManager dm = AppContext.getDataManager();
        sessionRef = dm.createReference(session);
        
        if (logger.isLoggable(Level.FINE)) {
            logger.finest("New session listener for " + session.getName());
        }

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     * session
     * @param session the session connected to this listener
     */
    public ProtocolSessionListener(ClientSession session) {
        DataManager dm = AppContext.getDataManager();
        sessionRef = dm.createReference(session);
    }
    
    /**
     * Initialize the session listener
     */

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            // the given protocol.  If the set does not exist, then
            // create it.
            ManagedReference<ProtocolClientSet> ref = clientMap.get(protocol);
            if (ref == null) {
                ProtocolClientSet sessions = new ProtocolClientSet();
                ref = dm.createReference(sessions);
                clientMap.put(protocol, ref);
            }
            
            ManagedReference<ClientSession> sessionRef = dm.createReference(session);

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                ProtocolClientSet sessions = new ProtocolClientSet();
                ref = dm.createReference(sessions);
                clientMap.put(protocol, ref);
            }
            
            ManagedReference<ClientSession> sessionRef = dm.createReference(session);
            
            ProtocolClientSet sessions = ref.getForUpdate();
            sessions.add(sessionRef);
        
            // add a reference to the protocol from this client's session

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