Re: [topbraid-users] Re: SPARQLMotion Module Devlopment question

Fri, 21 Jan 2011 12:57:52 -0800 

Tim,
Did you have "org.topbraid.sparqlmotion.vocabulary.SM" imported into the Java class where you define your own SM properties like "SM.targetUser" ? In the Dependencies list of your plugin, did you include "org.topbraid.sparqlmotion" and any other related plugins like "org.topbraid.lib.jena"? 

Gokhan


On 1/21/2011 12:36 PM, Smith, Tim wrote:

Hi Scott,

Thanks for the help.

I had done what you suggested - I imported the model containing the properties 
I wanted to use into the new module model.  They were available to the Create 
from SPIN Template window.  I changed them to use the SM namespace but this did 
not solve the problem.

The problem I'm running into is at the java level.  When I try to get the value 
pointed to by the given property, the compiler does not recognize SM.targetUser.

It does recognize the built-in SM: values such as sm:outputVariable.  This is 
because these values are declared in org.topbraid.sparqlmotion.vocabulary.SM.

Do I need to create my own vocabulary class to use my properties at the java 
level?  If not, how do I determine the value pointed to by a property used in a 
SPIN constraint that is not part of a built-in vocabulary?

Thanks,

Tim






-----Original Message-----
From: [email protected] [mailto:topbraid-
[email protected]] On Behalf Of Scott Henninger
Sent: Friday, January 21, 2011 12:17 PM
To: TopBraid Suite Users
Subject: [topbraid-users] Re: SPARQLMotion Module Devlopment question

Tim; In the initial step "Declaring the new Module", add your
arguments (using the proper URIs) or import your model into the new
module model.  The properties you define are then available when using
the "Create from SPIN template" step to create arguments.  I'd suggest
using the sm namespace, i.e. sm:targetURL and sm:targetUser.  This
will re-use the existing infrastructure without having to declare new
Java classes.

-- Scott

On Jan 21, 9:22 am, "Smith, Tim"<[email protected]>  wrote:

Hi,

I'm developing an  SM module that requires several items as input.

  These items are bound variables coming into my module.

I would like the user of the module to be able set the variable names

that contain the values needed.  For example, I need to pass a URL and
user name to the module.

I thought I could use a spin constraint to define the property that

will hold the name of the variable, following the example of "Hello
World" found in the "Adding a SPARQLMotion  Module with Java" help
page.

The Hello World example uses the sm:outputvariable property to pass

the name of the output variable into the module using a spin
constraint.  The value of the property is retrieved inside the module
using:

String varName = getConfigString(SM.outputVariable, true);

I was hoping to use more informative, existing property names in the

spin constraint to define the variables such as PG:targetURL an
PG:targetUser.

However, I do not know how to access these properties inside the

module since Java does not know about them.  i.e. I cannot use String
varName = getConfigString(PG.targetURL, true);

Do I need to stick with the vocabulary defined by SM or can I use my

own properties in this manner?  If so, how do I define them?  Just
declare them in the java code to be a
com.hp.hpl.jena.rdf.model.Property?

Thanks for your help,

Tim

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