Examples of java.rmi.server.ObjID

java.rmi.server.ObjID
An ObjID is used to identify a remote object exported to an RMI runtime. When a remote object is exported, it is assigned an object identifier either implicitly or explicitly, depending on the API used to export.
The {@link #ObjID()} constructor can be used to generate a uniqueobject identifier. Such an ObjID is unique over time with respect to the host it is generated on. The {@link #ObjID(int)} constructor can be used to create a"well-known" object identifier. The scope of a well-known ObjID depends on the RMI runtime it is exported to.
An ObjID instance contains an object number (of type long) and an address space identifier (of type {@link UID}). In a unique ObjID, the address space identifier is unique with respect to a given host over time. In a well-known ObjID, the address space identifier is equivalent to one returned by invoking the {@link UID#UID(short)}constructor with the value zero.
If the system property java.rmi.server.randomIDs is defined to equal the string "true" (case insensitive), then the {@link #ObjID()} constructor will use a cryptographicallystrong random number generator to choose the object number of the returned ObjID. @author Ann Wollrath @author Peter Jones @version 1.31, 06/02/23 @since JDK1.1

    // for the moment, used only by TransparentIndirection
    protected transient Object serverIndirectionObject;


    public RemoteValueHolder() {
        // This assigns unique id to the remote value holder when it is created.
        this.id = new ObjID();
    }

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    // for the moment, used only by TransparentIndirection
    protected transient Object serverIndirectionObject;


    public RemoteValueHolder() {
        // This assigns unique id to the remote value holder when it is created.
        this.id = new ObjID();
    }

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    /** Return if the stream is closed */
    protected boolean isClosed;


    public RemoteScrollableCursor(ScrollableCursor serverScrollableCursor) {
        this.id = new ObjID();
        this.isClosed = serverScrollableCursor.isClosed();
    }

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    /** Return the cursored stream page size. */
    protected int pageSize;


    public RemoteCursoredStream(CursoredStream serverCursoredStream) {
        this.id = new ObjID();
        this.position = serverCursoredStream.getPosition();
        this.pageSize = serverCursoredStream.getPageSize();
        this.isClosed = (serverCursoredStream.getResultSet() == null);
    }

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            if (valueHolder == null) {
                // For remote session the original value holder is transient,
                // so the value must be found in the registry or created.
                RemoteUnitOfWork remoteUnitOfWork = (RemoteUnitOfWork)((UnitOfWorkValueHolder)unitOfWorkIndirectionObject).getRemoteUnitOfWork();
                RemoteSessionController controller = remoteUnitOfWork.getParentSessionController();
                ObjID id = ((UnitOfWorkValueHolder) unitOfWorkIndirectionObject).getWrappedValueHolderRemoteID();
                if (id != null) {
                    // This value holder may be on the server, or the client,
                    // on the server, the controller should exists, so can lock up in it,
                    // on the client, the id should be enough to create a new remote value holder.
                    if (controller != null) {

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    /** Return the cursored stream page size. */
    protected int pageSize;


    public RemoteCursoredStream(CursoredStream serverCursoredStream) {
        this.id = new ObjID();
        this.position = serverCursoredStream.getPosition();
        this.pageSize = serverCursoredStream.getPageSize();
        this.isClosed = (serverCursoredStream.getResultSet() == null);
    }

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    // for the moment, used only by TransparentIndirection
    protected transient Object serverIndirectionObject;


    public RemoteValueHolder() {
        // This assigns unique id to the remote value holder when it is created.
        this.id = new ObjID();
    }

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    UnicastServerRef sref = null;
    if (obj instanceof RemoteObject)
      sref = (UnicastServerRef) ((RemoteObject) obj).getRef();


    if (sref == null)
      sref = new UnicastServerRef(new ObjID(), port, serverSocketFactory);


    Remote stub = sref.exportObject(obj);
    // addStub(obj, stub); 
    // TODO Need to change the place of the stub repository
    return stub;

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public static Registry getRegistry(String host, int port) throws RemoteException {
  return (getRegistry(host, port, RMISocketFactory.getSocketFactory()));
}


public static Registry getRegistry(String host, int port, RMIClientSocketFactory csf) throws RemoteException {
  RemoteRef ref = new UnicastRef(new ObjID(ObjID.REGISTRY_ID), host, port, csf);
  return (new RegistryImpl_Stub(ref));
}

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   * 
   * @return the object id
   */
  private static ObjID makeId(ActivationID aid)
  {
    ObjID id = new ObjID(0);
    
    // The fields of both ObjID and ActivationID must be package private,
    // so we need to use the reflection to access them anyway.
    // Probably other implementations use some very different approach.

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