[Mondrian] olap4j-xmlaserver: Initial refactoring of Mondrian's XMLA server into its own project

Dmitriy Lyubimov dlieu.7 at gmail.com
Thu Oct 10 13:38:06 EDT 2013


can you describe what can it be used for?
Can it parse out MDX requests into a logical plan? What is mdx logical plan
class model?

Apologies for perhaps very novice questions, i've never used Mondrian so i
am totally new to its code base or olap4j.


On Fri, Aug 31, 2012 at 5:19 PM, Julian Hyde <jhyde at pentaho.com> wrote:

> I've been promising for a long time to factor the XMLA server code out of
> Mondrian. At last I've done it: see
> https://github.com/julianhyde/olap4j-xmlaserver.
> For now, the code is just a clone of the mondrian.xmla package (from the
> lagunitas branch that will become mondrian-4.0). I've also copied in some
> other classes (e.g. mondrian.olap.Util) that the XMLA server depends upon.
> I achieved the initial goal: it builds. (It builds using maven; I'm sure
> there will be a mixture of loathing and adulation for this.)
> Next step will be to eliminate the dependencies on intrinsic mondrian
> classes like MondrianServer and MondrianProperties. I'll do this by adding
> methods to the XmlaExtra callback. A few utility classes (e.g.
> CompositeList) will be copied (i.e. will have versions in both Mondrian and
> olap4j-xmlaserver).
> Then I'll change mondrian lagunitas branch to use this library, remove the
> mondrian.xmla package, and then rename the mondrian.xmla package in
> olap4j-xmlaserver to something like org.olap4j.xmla.server. The test suite
> will probably remain part of mondrian for a few months.
> The mondrian master branch, and the mondrian-3.4.x release series, will
> not see this change; they will continue to use the mondrian.xmla package.
> Since the code is cloned from Mondrian, the license is the same as
> Mondrian -- EPL. If I can get the original committers to agree, I would
> like to switch to Apache 2 license.
> Let me know what you think. Get involved. Discussions will be on the
> mondrian mailing list.
> By the way, let me know whether you like the project name and package
> namespace. They're all up for change at this point. And the github project
> may move, too.
> Julian
> Julian Hyde
> jhyde at pentaho.com
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> Mondrian at pentaho.org
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