------------------------------------------------------------------------------
--                                                                          --
--                           POLYORB COMPONENTS                             --
--                                                                          --
--         Copyright (C) 1999-2012, Free Software Foundation, Inc.          --
--                                                                          --
-- This is free software;  you can redistribute it  and/or modify it  under --
-- terms of the  GNU General Public License as published  by the Free Soft- --
-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
-- sion.  This software is distributed in the hope  that it will be useful, --
-- but WITHOUT ANY WARRANTY;  without even the implied warranty of MERCHAN- --
-- TABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public --
-- License for  more details.                                               --
--                                                                          --
-- You should have received a copy of the GNU General Public License and    --
-- a copy of the GCC Runtime Library Exception along with this program;     --
-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
-- <http://www.gnu.org/licenses/>.                                          --
--                                                                          --
--                  PolyORB is maintained by AdaCore                        --
--                     (email: sales@adacore.com)                           --
--                                                                          --
------------------------------------------------------------------------------

This is the README file for PolyORB version @polyorb_version@.

The home page of the project is located at http://libre.adacore.com/polyorb/
This is where you can find news about the project, new releases, and
pointers to several documents and papers related to PolyORB.

What is PolyORB?
----------------

PolyORB is a polymorphic, reusable infrastructure for building
object-oriented distributed systems.  Middleware environments are
software libraries that hide the complex issues of distribution and
provide the programmer with high-level abstractions that allow easy
and transparent construction of distributed applications.  A number
of different standards exist for creating object-oriented distributed
applications.  These standards define two things:

    * the interface seen by the developer's applicative objects;
    * the protocol used by the middleware environment to talk to other
      nodes in the distributed application.

Usually, middleware for one platform supports only one set of such interfaces,
and cannot interoperate with other platforms.

A polymorphic middleware allows the existence of several different
implementations of each of these aspects to be used within the same
middleware framework. In addition, PolyORB allows such different
personalities to coexist in the same instance of the running middleware;
it decouples the personality presented to applications on one side
("application personality"), and the personality presented to other
middleware on the other side ("protocol personality"). Multiple
implementations of each personalisable aspect can coexist within the same
instance of the running middleware: unlike previous generic middleware,
PolyORB is actually schizophrenic.

The decoupling of application and protocol personalities, and the
support for multiple simultaneous personalities within the same running
middleware are key features required for the construction of interoperable
distributed applications. This allows PolyORB to communicate with
middleware that implement different distribution standards: PolyORB
provides middleware-to-middleware interoperability.

The PolyORB architecture also permits the automatic,
just-in-time creation of proxies between incompatible environments
(although this feature is not implemented yet).

PolyORB can be used in Ada 95 and Ada 2005 applications alike. It is
implemented in Ada 2005 and C.

Installation
------------

See INSTALL file for more details on supported platforms and installation
process.

Documentation overview
----------------------

README      : This file, first instructions.
INSTALL     : Detail PolyORB installation process.
NEWS        : Detail updates between PolyORB's releases.
              Includes listing of new features, fixed bugs and incompatible
              changes in each release.
FEATURES    : List PolyORB's features.
src/ROADMAP : Overview of PolyORB source code.
docs/*      : Documents describing PolyORB internals, including
              PolyORB User's Guide.

Usage of PolyORB
----------------

See the PolyORB User's Guide for more details on PolyORB usage.

Bug reports
-----------

If you find a bug or would like to submit patches, please do so indicating
the release you use. We accept patch files. To produce such a patch file,
put your files in the PolyORB directory and our files in the directory
PolyORB.orig, and use the following command:

  diff --recursive --context PolyORB.orig PolyORB > patch_file

If your diff version do not understand the --recursive or --context
option, please use the GNU diffutils package which may be found on any
GNU archive (e.g. ftp://ftp.lip6.fr/pub/gnu/).

Note that unified diff files (-u option of GNU diff) are also welcomed.

Unsupported users may directly send their patches and bug report via
e-mail at the address
   polyorb-bugs@lists.adacore.com

or seek community support through the public mailing list:
   polyorb-users@lists.adacore.com

Please use the Problem Report Form in docs/PROBLEM-REPORT-FORM.
Please include the complete output of "polyorb-config --version"
in any problem report.

If you are interested in becoming a supported PolyORB user, you should
send an email to sales@adacore.com.

Mailing-lists
-------------

The mailing-list PolyORB-Users serves as a informal forum for technical
discussions about PolyORB among users.

You can subscribe to this list and browse the archive at the URL:

http://lists.adacore.com/mailman/listinfo/polyorb-users

Contributors:
-------------

PolyORB has been developed since January, 1999 by the following
contributors:

* Dmitriy Anisimkov
* Nicolas Archambault
* Fabien Azavant
* Benjamin Bagland
* Khaled Barbaria
* Nikolay Boshnakov
* Reto Buerki
* Emmanuel Chavane
* Karim Chine
* Jean-Marie Cottin
* Olivier Delalleau
* Cyril Domercq
* Robert Duff
* Michael Friess
* Nicolas Fritsch
* Jeremy Gibbons
* Vadim Godunko
* Jerome Guitton
* Jerome Hugues
* Mejdi Kaddour
* Oliver Kellogg
* Fabrice Kordon
* Narinder Kumar
* Laurent Kubler
* Stéphane Lanarre
* Lionel Litty
* Vincent Niebel
* Pascal Obry
* Pablo Oliveira
* Pierre Palatin
* Bertrand Paquet
* Laurent Pautet
* Sebastien Ponce
* Thomas Quinot
* Nicolas Roche
* Jerome Roussel
* Selvaratnam Senthuran
* Nicolas Setton
* Frank Singhoff
* Samuel Tardieu
* Santiago Urueña-Pascual
* Thomas Vergnaud
* Florian Villoing
* Guillaume Wisniewski
* Thomas Wolf
* Bechir Zalila