[seek-dev] Today's Ecogrid Call

[Dan Higgins]

Rod,
    I haven't been following very closely all the work you and Jing (and 
others) are doing , so this may be a silly question. I notice that you 
have referred to the EML200DataSource returning a table. Just what sort 
of data strructure are you referring to?  As far as I know, Kepler 
doesn't have a 'TableToken'. It this a Java class or some array/vector 
of column data (strings?) in the Java code? It would be nice if we could 
create some table strucure like the 'data frames' of 'R' that could be 
passed between actors iin Kepler and easily manipulated.

Dan

Rod Spears wrote:

> Thinks to think about before we meet:
>
> 1) The Eml200DataSource uses the Ecogrid to get Metadata about an item 
> and then returns the data for that item as a single table. The 
> QueryBuilder can be used to reduce the number of columns that are pass 
> through the ports, but is not necessarily a require part of this data 
> object.
>
> 2) What else will we be using the generic QueryBuilder for? Meaning 
> what kind of data object will be returning more than one table that is 
> not an Ecogrid Query?
>     2.1) I think we have talked about this when the user will be 
> accessing local data files; thru HSQL?  JDBC?
>         2.1.1) If so, then how do they discover and get their local 
> data into Kepler?
>
> 3) Do we need a more generic EcogridDataSource object that can execute 
> generic Ecogrid Queries? And if so, do we need an Ecogrid Query 
> specific QueryBuilder instead of a generic one?
>
> 4) Do we need a DiGIR Data Source object, or would this be covered by 
> #2. If it was DiGIR specific than we could get data from node that may 
> not be register???? (I am not sure)
>
> Rod
>
> -- 
> Rod Spears
> Biodiversity Research Center
> University of Kansas
> 1345 Jayhawk Boulevard
> Lawrence, KS 66045, USA
> Tel: 785 864-4082, Fax: 785 864-5335
>


-- 
*******************************************************************
Dan Higgins                                  higgins at nceas.ucsb.edu
http://www.nceas.ucsb.edu/    Ph: 805-892-2531
National Center for Ecological Analysis and Synthesis (NCEAS) 
735 State Street - Room 205
Santa Barbara, CA 93195
*******************************************************************

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mercury.nceas.ucsb.edu/ecoinformatics/pipermail/seek-dev/attachments/20040917/b2afcfb9/attachment.htm