Hi Scot,
thanks for your replies :)
The example you gave me works, however I don't know which are the
objects over which i will have to iterate, these will be given by
another function. For example:
If I create a function (subclass of spin:Functions)
kennedys:getTheKennedys
with body:
SELECT ?r
WHERE {
?r a ?arg1 .
}
and argument :Argument sp:arg1 : kennedys:Person
and I then SPARQL call
SELECT ?x
WHERE {
let(?x:= tops:foreach (kennedys:getTheKennedys(kennedys:Person)))
}
I will get the same error. Something tells me that what I am trying to
do is not what foreach is meant (?!!)
I am not trying to make a plugin, I am trying to create a highly
parameterised framework where for each object I don't know neither the
name, the value, nor the number of attributes.
For example, I wan to decide if an object O has all its features'
values >0. As I mentioned before I am not sure how many features O
has. So what I have done is:
a. created a function that counts the number of features of O.
b. created a function that given each feature F checks if F>0. if yes
it returns 1 otherwise 0.
c. [here i get the problem] when i iterate/aggregate over the values
of all F I want to compare their sum against the count i obtained from
a.
do i make any sense?
Yes I would greatly appreciate if you could help me with the sparql's
triple match.
Many thanks!!
Sofia
On Jun 4, 1:02 am, Scott Henninger <[email protected]> wrote:
> I'm not able to reproduce this yet, so some additional detail will be
> necessary. To make sure we're on the same page, try the query in the
> Help files for tops:foreach. Open TopBraid/Examples/kennedys.rdf and
> copy the following query into the SPARQL view:
> SELECT *
> WHERE {
> ?x tops:foreach (kennedys:Gender kennedys:College kennedys:Person
> kennedys:Profession)
>
> }
>
> (BTW, tops:for each is rarely used - in most cases SPARQL's triple
> match will do what is necessary - it already has a "for each" built
> in. Ask if that doesn't make sense.)
>
> If you are trying something else, please let us know. Are you trying
> to build a Java plug-n extension?
>
> -- Scott
>
> On Jun 3, 6:36 pm, sofiangeletou <[email protected]> wrote:
>
>
>
>
>
>
>
> > Hi Scott,
>
> > I get the same problem on a fresh installation of tbc 3.5.
>
> > Warning
> > Sat Jun 04 00:34:12 BST 2011
> > WARN [Thread-17] (E_Function.java:70) - URI <http://www.topbraid.org/
> > tops#foreach> has no registered function factory
>
> > Am I missing something obvious? :(
> > Thanks for your help
> > Sofia
>
> > On Jun 4, 12:11 am, sofiangeletou <[email protected]> wrote:
>
> > > Hi Scott,
> > > thanks for your advice. I tried to update TBC using eclipse but got
> > > the following error.
> > > Your original request has been modified.
> > > "TopBraid Composer Free Edition" is already installed, so an update
> > > will be performed instead.
> > > Cannot complete the install because of a conflicting dependency.
> > > Software being installed: TopBraid Composer Free Edition
> > > 3.5.0.v20110530-0330R (org.topbraidcomposer.free.feature.group
> > > 3.5.0.v20110530-0330R)
> > > Software currently installed: TopBraid Composer FE
> > > 3.3.1.v20100423-1816R (org.topbraidcomposer.free
> > > 3.3.1.v20100423-1816R)
> > > Only one of the following can be installed at once:
> > > TopBraid Composer SPIN Plug-in 3.5.0.v20110530-0330R
> > > (org.topbraidcomposer.spin 3.5.0.v20110530-0330R)
> > > TopBraid Composer SPIN Plug-in 3.3.1.v20100423-1816R
> > > (org.topbraidcomposer.spin 3.3.1.v20100423-1816R)
> > > Cannot satisfy dependency:
> > > From: TopBraid Composer FE 3.3.1.v20100423-1816R
> > > (org.topbraidcomposer.free 3.3.1.v20100423-1816R)
> > > To: org.topbraidcomposer.free.feature.group
> > > [3.3.1.v20100423-1816R]
> > > Cannot satisfy dependency:
> > > From: TopBraid Composer Free Edition 3.3.1.v20100423-1816R
> > > (org.topbraidcomposer.free.feature.group 3.3.1.v20100423-1816R)
> > > To: org.topbraidcomposer.spin [3.3.1.v20100423-1816R]
> > > Cannot satisfy dependency:
> > > From: TopBraid Composer Free Edition 3.5.0.v20110530-0330R
> > > (org.topbraidcomposer.free.feature.group 3.5.0.v20110530-0330R)
> > > To: org.topbraidcomposer.spin [3.5.0.v20110530-0330R]
>
> > > I will try to download and install it separately. By the way, I didn't
> > > reuse the project from one computer to the other, was only doing
> > > simple sparql queries. I will let you know how i get on with updating.
> > > Many thanks
> > > Sofia
>
> > > On Jun 3, 10:51 pm, Scott Henninger <[email protected]>
> > > wrote:
>
> > > > Sofia; The issue does seem to be with a mismatch of the registered
> > > > system files. For upgrading Composer,
> > > > seehttp://www.topquadrant.com/products/TBS_FAQ.html#TBS3,
> > > > in particular the last paragraph explains how to re-use a workspace
> > > > created with a different version of Composer. Basically, delete the
> > > > projects named 'TopBraid' and 'server.topbraidlive.org' and re-start
> > > > Composer.
>
> > > > We did have some issues with Eclipse update manager some time ago. It
> > > > could be easiest to install a fresh copy of TBC. Install files for
> > > > the latest version of Composer (3.5) is found
> > > > athttp://www.topquadrant.com/products/TB_install.php, and if you need
> > > > 3.4.4, you can find it
> > > > athttp://www.topquadrant.com/products/download/3.4.4/.
>
> > > > -- Scott
>
> > > > On Jun 3, 3:54 pm, sofiangeletou <[email protected]> wrote:
>
> > > > > Dear all,
> > > > > I have been using the tops:foreach on my laptop TBC (3.3.1) without a
> > > > > problem but when I am trying to use it on my desktop TBC (3.4.4) I get
> > > > > the following warning which of course does not allow me to proceed
> > > > > with my functions.
>
> > > > > "<http://www.topbraid.org/tops#foreach> has no registered function
> > > > > factory"
>
> > > > > In my help topics I saw that I should be able to extend topbraid using
>
> > > > > org.topbraid.sparql.propertyFunctions
> > > > > (com.hp.hpl.jena.sparql.pfunction.PropertyFunction)
>
> > > > > but I am not sure if this should be already in TBC or how to install
> > > > > it. In the installed packages I only see installed
>
> > > > > org.topbraid.sparql
> > > > > org.topbraid.sparqlmotion.Functions
> > > > > org.topbraid.sparqlmotion
>
> > > > > and there is no available software for installation in TopBraid
> > > > > Composer -http://www.topquadrant.com/products/updates/3.4/. Unless I
> > > > > have to use another update site. I am not sure how to proceed so I
> > > > > would appreciate a lot your help.
>
> > > > > Many thanks,
> > > > > sofia
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