Hello,

As announced last week, Metastorage is an application that generates
customizable APIs made of classes that store and retrieve objects stored
in persistent storage containers like for instance relational databases.
The generated code uses Metabase API and consequently supports PEAR::MDB
via Metabase API wrapper.

In addition to that, the current version is also capable of generating
automatically Entity-Relationship graphs using UML to present diagrams
of the generated classes.

The generated Entity-Relationship graphs are described in the DOT
language format. This format is used by the Graphviz software package
from AT&T research labs. The DOT file can be rendered in many common
image formats using Graphviz tools to generate a graph image.

An example of an Entity-Relationship UML diagram generated by the
program from a component example definition is included in the
Metastorage documentation.

Here you may find the complete announcement with example graphics and
the relevant links:

http://www.meta-language.net/news-2002-12-09-metastorage.html

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Regards,
Manuel Lemos