This package provides the support of CORBA;
see overview of the implemented functionality.
CORBA a system that applications use to work over networks. CORBA messages
are binary, not text oriented. They practically cary no "data wrapping"
information like XML <opening> </closing> tags. Hence CORBA
objects much easier exchange large amounts of binary data. CORBA can work
in such data-intensive application areas as telecommunications or radio
broadcasting.
Overview of the currently implemented CORBA functionality
The CORBA implementation in the Classpath project is now a working
prototype.
- This prototype is interoperable with Sun's implementation v 1.4,
transferring object references, primitive types, narrow and wide strings,
arrays, structures and trees between these two platforms.
- The prototype provides interoperable support for the Abstract interface
and Value types. Those appear in 1.3, being a feature of CORBA 2.3.
- The remote exceptions are also transferred and handled as expected.
- The support for parsing stringified object references (IORs), both
Big and Little Endian encoded, is implemented.
- The redirection commands works, LOCATION_FORWARD_PERM changing the
target address until the application is restarted and LOCATION_FORWARD
redirecting for the current session only.
- Both Little and Big Endian encoded messages are accepted. The encoding
of the sent messages is the same as used in the stringified IOR reference
of that object or Big Endian, if no such data available.
- You can use both request-oriented (based on {@link org.omg.CORBA.Request}
and stream-oriented (based on {@link org.omg.CORBA.portable.ObjectImpl}
invocation models. The current release includes the working examples,
demonstrating the client-server communication using both methods.
- These examples also show, how to use the Classpath naming service.
- The IDL compiler is not yet written (and not even started), but as a
side effect of the required compatibility, the implementation seems
accepting the output of the Sun's idlj.
- The Portable Object Adapter is already released. For details on POA,
see the {@link org.omg.PortableServer} package.
- We provide the implementation of the {@link org.omg.DynamicAny}
package. ORB returns the working DynAnyFactory that produces working
DynAny's as defined in OMG specification.
- All GNU Classpath classes in omg.org namespace are newly written using
the OMG .pdf document (Version 3.0.3, formal/04-03-12).
@author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)