Hi,
So the <accepts> list is unchanged once created but the <provides> list needs to change to reflect changes in data formats:
<node xsi:type="vos:StructuredDataNode"
uri="vos://nvo.caltech!vospace/0001">
<accepts>
<view uri="ivo://net.ivoa.vospace/views/tabular/votable-1.1"/>
<view uri="ivo://net.ivoa.vospace/views/image/fits-image"/>
</accepts>
</node>
2. I then put votable data into this so the <provides> shows the views applicable to this format:
<node xsi:type="vos:StructuredDataNode"
uri="vos://nvo.caltech!vospace/0001">
<accepts>
<view uri="ivo://net.ivoa.vospace/views/tabular/votable-1.1"/>
<view uri="ivo://net.ivoa.vospace/views/image/fits-image"/>
</accepts>
<provides>
<view uri="ivo://net.ivoa.vospace/views/tabular/votable-1.1"/>
</provides>
</node>
3. At a later stage, I replace the votable with an image so <provides> now needs to change to reflect this:
<node xsi:type="vos:StructuredDataNode"
uri="vos://nvo.caltech!vospace/0001">
<accepts>
<view uri="ivo://net.ivoa.vospace/views/tabular/votable-1.1"/>
<view uri="ivo://net.ivoa.vospace/views/image/fits-image"/>
</accepts>
<provides>
<view uri="ivo://net.ivoa.vospace/views/image/jpeg"/>
</provides>
</node>
Cheers,
Matthew
Dave Morris wrote:
> I would agree with Guy on this.
> If the (structured) data is stored in a database table, then even
> though you imported a votable the first time, it wouldn't prevent you
> from replacing the contents with data from a FITS file later.
> Even if the FITS file contained different columns.
>
> Use case -
> I'm setting up a database by importing into vospace API on the
> database system.
> I accidentally import the wrong file the first time.
> I should just be able to replace this by importing the correct file.
> Dave
> ps. Can we move the discussion back to the vospace list.
>
> Matthew Graham wrote:
>
>> Hi,
>>
>> When I create a StructuredDataNode (either through createNode or one
>> of the import methods), the created node will have the <accepts> that
>> the service sets:
>>
>> <node xsi:type="vos:StructuredDataNode">
>> <accepts>
>> <view uri="ivo://net.ivoa.vospace/views/tabular/votable-1.1"/>
>> <view uri="ivo://net.ivoa.vospace/views/tabular/fits-table"/>
>> </accepts>
>> </node>
>>
>> When data of a particular format flows to this node, should the list
>> of <accepts> views be cut down to just that of the input data?
>> Input format is votable so should the node become:
>>
>> <node xsi:type="vos:StructuredDataNode">
>> <accepts>
>> <view uri="ivo://net.ivoa.vospace/views/tabular/votable-1.1"/>
>> </accepts>
>> </node>
>>
>> If I were then to attempt to update the data with a second import, I
>> would be constrained to provide my data in votable format.
>> Is this the behaviour we want?
>>
>> Cheers,
>>
>> Matthew
>
>
Received on 2006-08-03Z17:45:19