Class UnicastRemoteObject

protected UnicastRemoteObject()
            throws RemoteException

Create and export new remote object without specifying the port value.

Throws:

RemoteException - if the attempt to export the object failed.

protected UnicastRemoteObject(int port)
            throws RemoteException

Create and export the new remote object, making it available at the given port, local host.

Parameters:

port - the port, on that the object should become available. Zero means anonymous port.

Throws:

RemoteException - if the attempt to export the object failed.

protected UnicastRemoteObject(int port,
                              RMIClientSocketFactory clientSocketFactory,
                              RMIServerSocketFactory serverSocketFactory)
            throws RemoteException

Create and export the new remote object, making it available at the given port, using sockets, produced by the specified factories.

Parameters:

port - the port, on that the object should become available. Zero means anonymous port.

clientSocketFactory - the client socket factory

serverSocketFactory - the server socket factory

Throws:

RemoteException - if the attempt to export the object failed.

protected UnicastRemoteObject(RemoteRef ref)
            throws RemoteException

Does nothing, delegates to super(ref).

public Object clone()
            throws CloneNotSupportedException

This method may be called to create a new copy of the Object. The typical behavior is as follows:

• o == o.clone() is false
• o.getClass() == o.clone().getClass() is true
• o.equals(o) is true

However, these are not strict requirements, and may be violated if necessary. Of the three requirements, the last is the most commonly violated, particularly if the subclass does not override Object.equals(Object).

If the Object you call clone() on does not implement Cloneable (which is a placeholder interface), then a CloneNotSupportedException is thrown. Notice that Object does not implement Cloneable; this method exists as a convenience for subclasses that do.

Object's implementation of clone allocates space for the new Object using the correct class, without calling any constructors, and then fills in all of the new field values with the old field values. Thus, it is a shallow copy. However, subclasses are permitted to make a deep copy.

All array types implement Cloneable, and override this method as follows (it should never fail):

 public Object clone()
 {
   try
     {
       super.clone();
     }
   catch (CloneNotSupportedException e)
     {
       throw new InternalError(e.getMessage());
     }
 }
 

Overrides:

clone in interface Object

Returns:

a copy of the Object

Throws:

CloneNotSupportedException - If this Object does not implement Cloneable

See Also:

Cloneable

public static RemoteStub exportObject(Remote obj)
            throws RemoteException

Export object, making it available for the remote calls at the anonymous port. This method returns the instance of the abstract class, not an interface. Hence it will not work with the proxy stubs that are supported since jdk 1.5 (such stubs cannot be derived from the RemoteStub). Only use this method if you are sure that the stub class will be accessible.

Parameters:

obj - the object being exported.

Returns:

the remote object stub

Throws:

RemoteException - if the attempt to export the object failed.

public static Remote exportObject(Remote obj,
                                  int port)
            throws RemoteException

Export object, making it available for the remote calls at the specified port. Since jdk 1.5 this method does not longer require the stub class to be present. If such class is not found, the stub is replaced by the dynamically constructed proxy class. No attempt to find and load the stubs is made if the system property java.rmi.server.ignoreStubClasses is set to true (set to reduce the starting time if the stubs are surely not present and exclusively 1.2 RMI is used).

Parameters:

obj - the object being exported.

port - the remote object port

Returns:

the remote object stub

Throws:

RemoteException - if the attempt to export the object failed.

public static Remote exportObject(Remote obj,
                                  int port,
                                  RMIClientSocketFactory csf,
                                  RMIServerSocketFactory ssf)
            throws RemoteException

FIXME

public static boolean unexportObject(Remote obj,
                                     boolean force)
            throws NoSuchObjectException