Comparison



OMG CORBA2


The new CORBA2 specification defines interoperable networked objects. The earlier CORBA1 lacks interoperability between vendors. The interoperable profile of CORBA2 is called IIOP, Internet Inter-Object Protocol. This protocol is mandatory to comply CORBA2. Sun announced that they would bandle a CORBA class library to JDK 1.1. The class library includes the client part. The server side will be sold by Sun as Joe. Joe runs on Solaris NEO.

ILU of Xerox is a free implementation of CORBA and it will support Java.


Sun JAVA RMI

Java RMI (Remote Method Invocation) was announced in March by Sun. RMI provides basic functionality for remote method invocation. The features and the implementation tequnique are near to an earlier versin of HORB.

Sun will bandle an RMI class library to JDK 1.1. The class library includes client part. Server side will be sold by Sun.

You can obtain a beta version of RMI from the homepage of Javasoft.


Microsoft OLE

Microsoft has announced thier new Java development environment will support OLE development in Java. Network programmin is supported by Active X Control for Internet. It includes Active X Controls (OLE controls) for STMP, HTTP, socket and so on.

Windows NT 4.0 Beta2 includes DCOM (Distributed Component Object Model), and the Visual Basic 4.0 The enterprise version supports Remote OLE.