[Savannah-hackers] submission of Lemur OLAP Open Source Library - savannah.nongnu.org

[lemire]

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Daniel Lemire <address@hidden> a décrit le projet comme suit :
Licence: gpl
Autre Licence: 
Paquet: Lemur OLAP Open Source Library
Nom système: lemur
Type: non-GNU

Description:
Lemur OLAP Open Source Library

http://www.daniel-lemire.com/lemurOLAP/





Goals





To our knowledge, there is no low level OLAP library implementing Hybrid OLAP. 
There is Mondrian which is a great Java-based ROLAP engine, but we believe that 
a smart C++ HOLAP implementation could outperform Mondrian.





To be fair though, the primary goal of this library at this time is to support 
our research interests since our goal are probably too ambitious to deliver 
timely usable code. We do envision though that the library could be used soon 
for some niche applications.





Licensing





GPL, of course.





Who are we?





The project is lead by Daniel Lemire, researcher at the National Research 
Council of Canada, and Owen Kaser, associate professor at the University of New 
Brunswick (Saint John).





Where's the source?





You can download our C++ source package. It runs under Linux though it could be 
ported A recent compiler is assumed (gcc 3.2.2). It is licensed under GPL (even 
though, currently, there is no such notice in the source code). 

http://www.daniel-lemire.com/lemurOLAP/lemur_code.zip



Suitability





As of now, the package is not suitable for commercial usage and is of early 
alpha quality. However, it was succesfully used in a research context (see 
Kaser and Lemire, DOLAP'03). There is some level of regression testing, but we 
are still designing the API.





We have setup a demo site where you can use the code through a web interface to 
prove that it does work.

Dépendances logicielles:
 It runs under Linux though it could be ported eventually, a recent compiler is 
assumed (gcc 3.2.2). Currently, it is very minimalist though it is written in 
C++ and, as such, it requires C++ support...



We plan to use libraries such as an embedded MySQL and BerkeleyDB in the 
future, but we would ensure that we can do so while remaining compliant with 
GPL.





Autres Commentaires:
I believe this may be the first ever C++ OLAP engine to be GPL.


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