Daniel,
I want to create a Named Graph "X", based on User-Id, the data for each named
Graph is created on the fly, when a Match occurs against the Default Graph
(which has already been loaded to the Jena TDB)...
I need to know how to generate the Named Graph based on IRI?
Do I create a NameSpace for the IRI?
Please give me an example...
Thank you,
Al
On Wednesday, July 6, 2016 6:45 AM, Daniel Hernández <[email protected]> wrote:
I suggest that you first translate your data to RDF using an script
(e.g., in Ruby, Python, etc.) to generate a text file in one of the RDF
serialization formats that support named graphs (e.g., nquads). Then,
you can load the data into jena using tdbloader.
Daniel
El 06/07/16 a las 01:10, Al Shapiro escribió:
> Daniel,
> Thank you, this gives me part of the answer...
> Can you give me an example(s) of the IRI's that you used to name your Named
> Graphs and how they are defined as an IRI, in Sparql?.
> Please withhold any proprietary info...
> Thank you again,
> Al
>
>
>
>
> On Tuesday, July 5, 2016 9:55 PM, Daniel Hernández <[email protected]>
>wrote:
>
>
> Hi Al,
>
> Yes, you can use any IRI to name graphs. Thus, in particular you can use
> user ids to compose names of graphs.
>
> Daniel
>
> El 05/07/16 a las 23:58, Al Shapiro escribió:
>> Hi Daniel,
>> I am a Newbie at Jena Sparql and I would like to know how you addressed the
>> value of each Named Graph you created, for example, I have successfully used
>> GRAPH qm:g1 to create a Named Graph "g1", can I substitute a variable for
>> "g1" such as "user _number", to create multiple Named Graphs based on the
>> value of "user _number"?
>> Thank you for help...
>> Al
>>
>>
>>
>>
>>
>>
>>
>>
>> On Monday, July 4, 2016 8:38 PM, Daniel Hernández <[email protected]>
>>wrote:
>>
>>
>> Hi Chris,
>>
>> It is possible. In fact, I have loaded 57 million of named graphs and
>> then queried without problem. You can see the details in
>> http://users.dcc.uchile.cl/~dhernand/research/ssws-2015-reifying.pdf
>>
>> Daniel
>>
>> El 04/07/16 a las 19:21, Chris Jones escribió:
>>> Hi All,
>>>
>>> How many named graphs can Jena gracefully handle? Hundreds, thousands,
>>> millions? I've found references to Jena handling large triple stores,
>>> with billions of statements; but nothing about how many named graphs.
>>>
>>> I'm writing a system where I'm considering giving each remote client
>>> its own named graph where it uploads data. I'm further considering
>>> keeping historical data, so the client would get a new named graph
>>> each time it sent its data. I'm curious if this is a bad idea.
>>>
>>> Chris
>>>
>>
>>
>>
>
>
>
>
