[ANNOUNCE] e4Graph 1.0a8 released

From: Jacob Levy <jylevy_at_pacbell.net>
Date: Sun, 03 Aug 2003 05:49:16 GMT
Message-ID: <3F2CA270.5060109_at_pacbell.net>



I am pleased to announce the 1.0a8 release of e4Graph, the seventh Alpha release.

WHAT IS IT: e4Graph is a C++ library that allows programs to store graph-like data persistently and to access and manipulate that data efficiently. With e4Graph, you can arrange your data in the most natural form that reflects the relationships between its parts, rather than having to force it into a table-like format. The e4Graph library also allows you to concentrate on the relationships you want to represent, and not on how to store them in a database. You can modify data items, and add and remove connections and relationships between pieces of data on the fly. e4Graph allows you to represent an unlimited number of different connections between pieces of data, and your program can selectively manipulate the data according to the relationships it cares about, not having to know about other connections represented in the data set. The e4Graph package also provides bindings in several other languages, currently Tcl, Python and Java, and allows input/output of object graphs via an XML representation.

The e4Graph package is built on top of Metakit 2.4.9.2, and optionally uses Tcl 8.4.4, Python 2.2.3, Java 1.1 or later, and Expat 1.95.5.

WHERE TO GET:

Downloads: http://sourceforge.net/projects/e4graph/
Homepage: http://www.e4graph.com/e4graph/
Changelog: http://www.e4graph.com/e4graph/changes.txt
Installation: http://www.e4graph.com/e4graph/e4install.html

WHAT IS NEW: Support for MacOS X 10.2 and several other platforms was added. Support for Python 2.2 and later releases was added. The Java binding was updated. The event mechanism was completely overhauled and support for user defined events was added. The vertex caching mechanism was moved from the Tcl binding to the core e4Graph library to enable other language bindings to benefit from the increased performance afforded by the cache. The interface between e4Graph and data base drivers was formalized in preparation for supporting new data base drivers in addition to Metakit. Additional work was done to support 64-bit systems and very large storages; more work is needed. Support for SWIG was added so new language bindings can be created with SWIG, in preparation for incorporating Perl, PHP and Ruby bindings in the next release. Many bugs were fixed.

ACKNOWLEDGMENTS: Michael Krimerman contributed the Python binding. J.P. Fletcher helped me get started with SWIG support. Daniel Steffen and Nicholas Brawn were instrumental helping with MacOS X support. I wish to acknowledge support from the HP test-drive facility and from the SourceForge compile farm. Many people (too many to mention) contributed bug reports and bug fixes. Geoff Shapiro and David Van Maren suggested many useful API changes. Received on Sun Aug 03 2003 - 07:49:16 CEST

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