Programming CORBA with Orbacus on Linux

A simple CORBA client/server pair

This examples demonstrates some techniques using a very simple example of a client/server pair. We have to supply the following files:

• The server server.cpp instantiates a simple
• server implementation Hallo_impl.cpp (the header is Hallo_impl.h). This server object implements the
• interface Hallo.idl.
• The client's source code is client.cpp.

After succesfull build of all executables, the following steps are required for running the example. First, you have to setup all PATH and LD_LIBRARY_PATH variables as explained here. First, you have to start the server, then, in another window, the client. The client tries to locate the server via a reference stored in a file, and calls some remote methods.

It is possible to run both programs on different hosts, if the machines have access to a common file system, e.g. a Samba or NFS filesystem. Both programs must be able to write or find the file with the stringified IOR.

A simple CORBA client/server pair

This example contains also Java versions of all programs:

• The server server.java instantiates a simple
• server implementation Hallo_impl.java This server object implements the
• interface Hallo.idl.
• The client's source code is client.java.

The example can be build and executed using the following procedure:

adrasteia\\s:\ set CLASSPATH=.;%JOB%\lib\OB.jar

adrasteia\\s:\ jidl --package Hallo Hallo.idl
adrasteia\\s:\ javac Hallo\*.java
adrasteia\\s:\ java Hallo.server

nike\\s:\ set CLASSPATH=.;%JOB%\lib\OB.jar
nike\\s:\ java Hallo.client

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