[Interest] [ANN] ODB C++ ORM 2.3.0 released, adds schema evolution support

Christian Gagneraud chgans at gna.org
Wed Oct 30 23:39:32 CET 2013

On 31/10/13 00:36, Boris Kolpackov wrote:
> I am pleased to announce the release of ODB 2.3.0.

How does that compare to QDjango[1]? Why should I use ODB in a Qt project?


[1] http://code.google.com/p/qdjango/

> ODB is an open source object-relational mapping (ORM) system for C++. It
> allows you to persist C++ objects to a relational database without having
> to deal with tables, columns, or SQL and without manually writing any of
> the mapping code.
> Major new features in this release:
>    * Support for database schema evolution, including automatic schema
>      migration, immediate and gradual data migration, as well as soft
>      object model changes (ability to work with multiple schema versions
>      using the same C++ classes).
>      For a quick showcase of this functionality see the Changing Persistent
>      Classes section in the Hello World Example chapter:
>      http://www.codesynthesis.com/products/odb/doc/manual.xhtml#2.9
>    * Support for object sections which provide the ability to split data
>      members of a persistent C++ class into independently loaded/updated
>      groups.
>    * Support for automatic mapping of C++11 enum classes.
> A more detailed discussion of these features can be found in the following
> blog post:
> http://www.codesynthesis.com/~boris/blog/2013/10/30/odb-2-3-0-released/
> For the complete list of new features in this version see the official
> release announcement:
> http://www.codesynthesis.com/pipermail/odb-announcements/2013/000037.html
> ODB is written in portable C++ (both C++98/03 and C++11 are supported) and
> you should be able to use it with any modern C++ compiler. In particular, we
> have tested this release on GNU/Linux (x86/x86-64/ARM), Windows (x86/x86-64),
> Mac OS X (x86), and Solaris (x86/x86-64/SPARC) with GNU g++ 4.2.x-4.8.x,
> MS Visual C++ 2005, 2008, 2010, and 2012, Sun Studio 12u2, and Clang 3.x.
> The currently supported database systems are MySQL, SQLite, PostgreSQL,
> Oracle, and SQL Server. ODB also provides optional profiles for Boost and
> Qt, which allow you to seamlessly use value types, containers, and smart
> pointers from these libraries in your persistent classes.
> More information, documentation, source code, and pre-compiled binaries are
> available from:
> http://www.codesynthesis.com/products/odb/
> Enjoy,
> 	Boris
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