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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
On 10/13/2010 10:15 PM, Roy Mendelssohn wrote:
Id be interested in knowing which clients can handle relational constraint expressions? The NetCDF clients cannot, because it falls outside of the data model and API. I know you guys do a lot with relational databases, so its not surprising if your software does. Ive been working almost exclusively on top of collections of files (netcdf, hdf, grib, bufr, etc). I have been on the lookout for new solutions, but for now it seems that people need services that run on top of those file collections. Comments, pleaseEmail exchange with dennis about whether the latest netcdf library with opendap support can handle relational constraint expressions:The code should be able to handle relational constraint expressions. To be frank, however, I have only tested it on synthetic data because I never could find any real data that produced sequence data. This means that there are probably some errors in it. However, I am glad to work with you to fix any bugs or other issues.So anything that can link to the latest netcdf distribution with OpeNDAP enabled has such capabilities. -Roy
Hi Roy: Yes, the netcdf_java library has this capability also. But what I meant was that it cant be done through the netcdf API in a transparent way. One has to drop down into an opendap specific method. Ive been trying to figure out how to build objects on top of this that can be used more generally; eg local or remote access, etc. John
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