[seek-dev] ecogrid query

[Arcot Rajasekar]

Matt
	I like the approach of a separate metadata respository wityh links
to an object repository. But if the metadata is not in EML then we may
have to do some other metadata repository possibly MCAT.

  thanks
raja

On Thu, 22 Jul 2004, Matt Jones wrote:

> Hi David,
>
> You can query using the existing ecogrid interfaces, but only against
> the metadata that is available for the data source.  By default, SRB
> doesn't have much contextual metadata.  I've talked with Raja about
> modifying SRB to accept an EML description of the data and load that
> into the extended metadata for the dataset, but that hasn't been done
> yet as far as I know.  Another option is to load EML metadata describing
> the data into the KNB metacat, and then point that at the data objects
> in the SRB.  Then, searching the EcoGrid will find metadata records in
> one system that point at data objects in abother system.  But you'd be
> able to search the much more comprehensive EML metadata.
>
> If you have metadata you want to query, you can use the QueryBuilder to
> construct a query, but it is intended as a developer's tool for testing,
> not an end-user tool.  Steve Tekell is designing and implementing a
> web-based query app for EcoGrid targeted at scientists.  When finished,
> it will be installed as part of the SEEK web site.  Until then, Rod's
> tool and the commandline client are your options for submitting a query.
>   There is an extremely simple query tool prototype in Kepler, but right
> now it only searches the KNB Ecogrid node.
>
> Matt
>
> David Stockwell wrote:
> > Hi,
> > We are at the point now where we would like to query
> > the metadata on our datasets to return a list of those of interest,
> > for further processing.  Could anyone suggest how we might
> > use the ecogrid to say, query for all datasets that concern climate?
> > Is this something I can use the QueryBuilder for Rod?
> > Cheers
> >
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>
>