[DL-Learner SVN] SF.net SVN: dl-learner:[3464] trunk/components-core/src/main/java/org/ dllearner/reasoning/SPARQLReasoner.java

[<lor...@us...>]

Revision: 3464
          http://dl-learner.svn.sourceforge.net/dl-learner/?rev=3464&view=rev
Author:   lorenz_b
Date:     2011-12-01 22:06:17 +0000 (Thu, 01 Dec 2011)
Log Message:
-----------
Added method to get inverse properties.

Modified Paths:
--------------
    trunk/components-core/src/main/java/org/dllearner/reasoning/SPARQLReasoner.java

Modified: trunk/components-core/src/main/java/org/dllearner/reasoning/SPARQLReasoner.java
===================================================================
--- trunk/components-core/src/main/java/org/dllearner/reasoning/SPARQLReasoner.java	2011-12-01 21:44:18 UTC (rev 3463)
+++ trunk/components-core/src/main/java/org/dllearner/reasoning/SPARQLReasoner.java	2011-12-01 22:06:17 UTC (rev 3464)
@@ -579,6 +579,20 @@
 		return cnt;
 		
 	}
+	
+	public SortedSet<ObjectProperty> getInverseObjectProperties(ObjectProperty property){
+		SortedSet<ObjectProperty> inverseObjectProperties = new TreeSet<ObjectProperty>();
+		String query = "SELECT ?p WHERE {" +
+				"{<%p> <%ax> ?p.} UNION {?p <%ax> <%p>}}".replace("%p", property.getName()).replace("%ax", OWL.inverseOf.getURI());
+		ResultSet rs = executeSelectQuery(query);
+		QuerySolution qs;
+		while(rs.hasNext()){
+			qs = rs.next();
+			inverseObjectProperties.add(new ObjectProperty(qs.getResource("p").getURI()));
+			
+		}
+		return inverseObjectProperties;
+	}
 
 	@Override
 	public DataRange getRange(DatatypeProperty datatypeProperty) {

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