Description David Michonneau 2007-11-01 10:13:11 EDT

The chart engine currently uses the interface IDataRowExpressionEvaluator to 
dynamically bind data into the chart.This interface only allows to pass 
un-grouped data and will let the chart engine internally do the grouping.

This enhancement aims to 
- Design one(two) new interface(s) (or enhance/extend the current one), to 
contain grouped data with grouping meta-information. The interface should be 
able to handle uni-dimensional or multi-dimensional data, possibly two 
different interfaces can be created.
- Create implementations of this(these) interface(s) to wrap IQueryResultSet 
and ICubeResultSet

Another enhancement will be filed to enhance the chart engine to process those 
two interfaces.This will allow the data grouping logic to be done externally to 
the Chart Engine. The existing interface usage should still be supported (with 
grouping done inside the Chart Engine).