[jira] [Commented] (JENA-1112) UpdateTransformOps removes a filter expression

["Håvard Ottestad (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/JENA-1112?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15087595#comment-15087595 ] 

Håvard Ottestad commented on JENA-1112:
---------------------------------------

Output:

{code}

--- ORIGINAL ---
PREFIX  foaf: <http://xmlns.com/foaf/0.1/>

INSERT {
  _:b0 foaf:accountName ?username .
}
WHERE
  { FILTER ( ! EXISTS { ?a  foaf:accountName  ?username } ) }


--- TRANSFORMED ---
PREFIX  foaf: <http://xmlns.com/foaf/0.1/>

INSERT {
  _:b0 foaf:accountName "test" .
}
WHERE

{code}

> UpdateTransformOps removes a filter expression
> ----------------------------------------------
>
>                 Key: JENA-1112
>                 URL: https://issues.apache.org/jira/browse/JENA-1112
>             Project: Apache Jena
>          Issue Type: Bug
>          Components: ARQ
>    Affects Versions: Jena 3.0.1
>            Reporter: Håvard Ottestad
>            Priority: Critical
>
> This filter gets removed:
> FILTER ( ! EXISTS { ?a foaf:accountName ?username } ) 
> The filter is used to stop duplicate usernames.
> Example java program below.
> ----------------------------------------------------------------
> {code:title=Main.java|borderStyle=solid}
> import org.apache.jena.graph.Node;
> import org.apache.jena.graph.NodeFactory;
> import org.apache.jena.sparql.core.Var;
> import org.apache.jena.sparql.syntax.syntaxtransform.UpdateTransformOps;
> import org.apache.jena.update.UpdateFactory;
> import org.apache.jena.update.UpdateRequest;
> import java.util.HashMap;
> public class Main {
> 	public static void main(String[] args) {
> 		String original = "PREFIX foaf: <http://xmlns.com/foaf/0.1/>	\n" +
> 				"INSERT { \n" +
> 				"		[] foaf:accountName ?username . \n" +
> 				"} \n" +
> 				"WHERE{	 \n" +
> 				"	#### THIS FILTER GETS REMOVED WHEN I TRANSFORM \n" +
> 				"	FILTER ( ! EXISTS { ?a foaf:accountName ?username } )  \n" +
> 				"} ";
> 		// The filter is used to stop duplicate usernames.
> 		UpdateRequest updates = UpdateFactory.create(original);
> 		System.out.println("--- ORIGINAL ---\n"+updates.toString()+"\n");
> 		// set ?username to "test"
> 		HashMap<Var, Node> varNodeHashMap = new HashMap<Var, Node>();
> 		varNodeHashMap.put(Var.alloc("username"), NodeFactory.createLiteral("test"));
> 		//Transform
> 		UpdateRequest transform = UpdateTransformOps.transform(updates, varNodeHashMap);
> 		System.out.println("--- TRANSFORMED ---\n"+transform.toString());
> 	}
> }
> {code}



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)