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  JPivot-Mondrian Project H2006
Added by thomasau, last edited by oddcb on Dec 18, 2006  (view change)
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Introduction

Assignment: Explore how we can integrate the JPivot package with DHIS 2.

*JPivot has a taglib that communicates with and executes MDX queries against Mondrian. It also uses something called WCF (Web Component Framework). That means that the JPivot pages has to be made with JSP. A taglib to write Velocity markup in JSP do exist if we want to use that (do we?).

*The Mondrian server takes care of aggregating data (group by's) for cubes and storing fact-tables using the database. So'll have to talk ''directly with the database''.

If this is undesired, a solution might be to replicate the database (like, perhaps, every night) so we never touch the production database with our code. This also allows for more tuning of the database
dedicated to the Mondrian server (like making materialized views (preaggregated data)).

Bizgres

Also, it could be feasible to look into bizgres, a postgres fork tuned for BI.
http://www.bizgres.org/

Also, Øyvind pointed us in the direction of that we might have to make a tool on the web for generation the schemas(xml) Mondrian use. Are we? Or will will predefined schemas for the most common reports suffice?

Development

Developers

Name Mail
Thomas Aure (thomasau) thomasau.på.ifi.uio.no
Odd Christer Brovig (oddcb) oddcb.på.ifi.uio.no
Tore Vatnan (torevatn) torevatn.på.ifi.uio.no

Developer meetings

Weekly meetings at MML, Wednsdays at 16:00 am.

Progress / roadmap

Our project source code can be checked out with:

$ svn co svn+ssh://<username>@svn.hisp.info/home/projects/dhis/scm/trunk/dhis-jpivot2

Project Documentation / Research

Links

JPivot/Mondrian

Database

JPivot Final Report (Report and analysis modules)
JPivotQuickStart (Report and analysis modules)
Preliminary report for the JPivot Group (Report and analysis modules)

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