org.ow2.cmi.rmi
Class DefaultCMIPRODelegate

java.lang.Object
  org.ow2.cmi.rmi.DefaultCMIPRODelegate

All Implemented Interfaces:

javax.rmi.CORBA.PortableRemoteObjectDelegate

public class DefaultCMIPRODelegate
extends java.lang.Object
implements javax.rmi.CORBA.PortableRemoteObjectDelegate

Define a delegate for supporting multiprotocols based on the default PRODelegate of Sun.

Author:

The new CMI team

See Also:

com.sun.corba.se.impl.javax.rmi.PortableRemoteObject

Constructor Summary

DefaultCMIPRODelegate()

Method Summary

void	connect(java.rmi.Remote target, java.rmi.Remote source) Makes a Remote object ready for remote communication.
void	exportObject(java.rmi.Remote obj) Makes a server object ready to receive remote calls.
java.lang.Object	narrow(java.lang.Object narrowFrom, java.lang.Class narrowTo) Checks to ensure that an object of a remote or abstract interface type can be cast to a desired type.
java.rmi.Remote	toStub(java.rmi.Remote obj) Returns a stub for the given server object.
void	unexportObject(java.rmi.Remote obj) Deregisters a server object from the runtime, allowing the object to become available for garbage collection.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultCMIPRODelegate

public DefaultCMIPRODelegate()

Method Detail

connect

public void connect(java.rmi.Remote target,
                    java.rmi.Remote source)
             throws java.rmi.RemoteException

Makes a Remote object ready for remote communication. This normally happens implicitly when the object is sent or received as an argument on a remote method call, but in some circumstances it is useful to perform this action by making an explicit call. See the Stub#connect method for more information.

Specified by:

connect in interface javax.rmi.CORBA.PortableRemoteObjectDelegate

Parameters:

target - the object to connect.

source - a previously connected object.

Throws:

java.rmi.RemoteException - if source is not connected or if target is already connected to a different ORB than source.

exportObject

public void exportObject(java.rmi.Remote obj)
                  throws java.rmi.RemoteException

Makes a server object ready to receive remote calls. Note that subclasses of PortableRemoteObject do not need to call this method, as it is called by the constructor.

Specified by:

exportObject in interface javax.rmi.CORBA.PortableRemoteObjectDelegate

Parameters:

obj - the server object to export.

Throws:

java.rmi.RemoteException - if export fails.

narrow

public java.lang.Object narrow(java.lang.Object narrowFrom,
                               java.lang.Class narrowTo)
                        throws java.lang.ClassCastException

Checks to ensure that an object of a remote or abstract interface type can be cast to a desired type.

Specified by:

narrow in interface javax.rmi.CORBA.PortableRemoteObjectDelegate

Parameters:

narrowFrom - the object to check.

narrowTo - the desired type.

Returns:

an object which can be cast to the desired type.

Throws:

java.lang.ClassCastException - if narrowFrom cannot be cast to narrowTo.

toStub

public java.rmi.Remote toStub(java.rmi.Remote obj)
                       throws java.rmi.NoSuchObjectException

Returns a stub for the given server object.

Specified by:

toStub in interface javax.rmi.CORBA.PortableRemoteObjectDelegate

Parameters:

obj - the server object for which a stub is required. Must either be a subclass of PortableRemoteObject or have been previously the target of a call to exportObject(java.rmi.Remote).

Returns:

the most derived stub for the object.

Throws:

java.rmi.NoSuchObjectException - if a stub cannot be located for the given server object.

unexportObject

public void unexportObject(java.rmi.Remote obj)
                    throws java.rmi.NoSuchObjectException

Deregisters a server object from the runtime, allowing the object to become available for garbage collection.

Specified by:

unexportObject in interface javax.rmi.CORBA.PortableRemoteObjectDelegate

Parameters:

obj - the object to unexport.

Throws:

java.rmi.NoSuchObjectException - if the remote object is not currently exported.