ASK content

Adding the ASK form of a SPARQL request can be performed with the ISparqlRequestGroup.addAsk() method.

Accessing the ASK form of a SPARQL request can be performed with the ISparqlRequestGroup.getAskForm() method.

For example:

   SparqlRequest request = new SparqlRequest("foaf");
   request.addAdditionalVariable("x");
   AskForm form = request.addAsk();
   form.addPropertyValue("x", "Name", "Alice");
   String sparql = request.getSPARQL();

Will have the following result:

   ASK {
      ?x foaf:Name "Alice" .
   }

Adding expressions in the ASK form

Adding expressions in the ASK form can be performed directly in the AskForm, or through the ISparqlRequestGroup.

For example, the following are equivalent:

   SparqlRequest request = new SparqlRequest("foaf");
   request.addAdditionalVariable("x");
   AskForm form = request.addAsk();
   form.addPropertyValue("x", "Name", "Alice");
   String sparql = request.getSPARQL();

or

   SparqlRequest request = new SparqlRequest("foaf");
   request.addAdditionalVariable("x");
   AskForm form = request.addAsk();
   request.addPropertyValue("x", "Name", "Alice");
   String sparql = request.getSPARQL();