OK, thanks for the update Jamal; You have the right
technique. For others as well, let's say you have a script that
binds the variable ?person in a previous query.
Supposing the usual kennedys
module, let's say you have a construct, such as:
CONSTRUCT
{ ?person rdfs:label ?name
}
WHERE
{ ?person kennedys:firstName
?fname .
?person kennedys:lastName
?lname .
BIND (CONCAT(?lname, ",
", ?fname) AS
?name)
}
...and you want to test this query. One tchnique is to bind the
variable in the where clause to an
example value, such as:
SELECT *
WHERE
{
BIND(kennedys:JosephKennedy AS ?person)
?person
kennedys:firstName
?fname .
?person
kennedys:lastName ?lname
.
BIND (CONCAT(?lname,
", ", ?fname)
AS ?name)
}
...the
binding to
?person will
help develop
the query to
do what
is expected.
Another
technique is
to choose the
module you are
working on and
run the query
to that
point. When
the dialog box
appears,
choose "Infer
result triples
(temporarily)".
This will
infer the
triples from t
e scripts
triple stream
into
the script
model. You
can then
execute
queries against
data the module
you are
working on
will see when
it executes.
The inferred
triples will
remain until
the next time
you choose to
infer the
result triples
or after
choosing
Inference >
Reset
Inferences.
Hopefully
these tips
will help you
and other
develop your SPARQLMotion
transformations
and Web
services!
-- Scott
On 2/20/2013 10:39 AM, J.REZZOUK wrote:
Thanks Scott,
I did exactly what you suggested. I used the debug mode and set a
breakpoint on the module : the variable was bound but the
execution of the query never ended. When I test the query in TBCME
replacing the variable by the value it is supposed to be bound
with, the query runs well. That's why I suspected a bounding
issue.
In the meantime, I have found another way for doing that and avoid
subqueries. But I will continue to test the subquery and will get
back to you.
Jamal
Le dimanche 17 février 2013 19:29:45 UTC+1, Scott Henninger a
écrit :
Jamal;
I'm not able to verify this behavior. I've attached a script that binds a variable name to ?surname then
uses it in an ApplyByConstruct, and does
so correctly. It returns a SPARQL Endpoint result in JSON. You can run this by 1) copying
the file to your workspace (Navigator View),
2) choose Script >
Refresh/Display SPARQLMotion functions
to register the script, then 3) open a browser to:
http://localhost:8083/tbl/sparqlmotion?id=smvt:testSMvarWithKNames
The best way to tell if a variable is bound at any point in
the script is to set a breakpoint on a module. Click the
blue dot icon while editing a SPARQLMotion script and click
on the module you want to set it on. Then execute the
script, either in Composer or via a Web browser on the
associated function name (see example attached and one at
http://www.topquadrant.com/products/SPARQLMotion_docs/SPARQLMotion_ex_dbpediaCapitals.html).
In Composer, a debug window will appear. On the first page
(Variables) is a list of all variables the script knows
about at that point in the script. You can also go to the
Query page an execute a query that will be valid against the
triple stream at that specific module - i.e. those are the
triples the module has at its disposal.
Given that, you should be able to tell when your variable is
defined and when it is not. If you have a scenario in which
TopBraid is not setting the variable correctly, an example
such as the on attached would be a good idea so we can look
into it more closely.
-- Scott
On 2/17/2013 11:27 AM, J.REZZOUK wrote:
Hello Scott,
I am using Windows 7 and TBCME 4.1 and I have also tested
with 4.0 version
Jamal
Le vendredi 15 février 2013 09:35:32 UTC+1, Scott Henninger
a écrit :
Jamal;
What version of Composer are you
using?
-- Scott
On 2/14/2013 11:17 PM, J.REZZOUK wrote:
Hello,
It seems to me that variable bound upstream in a
SparqlMotion Script (using for example BindBySelect,
BindWithConstant...) are not bound downstream in a
sparql subquery inside an ApplyConstruct.
Do you confirm ? Is it a bug or something I
misunderstand ?
Thanks for your help
Jamal
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