[DL-Learner SVN] SF.net SVN: dl-learner:[3467] trunk/components-core/src/main/java/org/ dllearner/reasoning/SPARQLReasoner.java

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

Revision: 3467
          http://dl-learner.svn.sourceforge.net/dl-learner/?rev=3467&view=rev
Author:   lorenz_b
Date:     2011-12-04 15:50:59 +0000 (Sun, 04 Dec 2011)
Log Message:
-----------
Added method to get the popularity for a property.

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	2011-12-04 15:48:34 UTC (rev 3466)
+++ trunk/components-core/src/main/java/org/dllearner/reasoning/SPARQLReasoner.java	2011-12-04 15:50:59 UTC (rev 3467)
@@ -580,6 +580,17 @@
 		
 	}
 	
+	public int getPropertyCount(ObjectProperty property){
+		String query = String.format("SELECT COUNT(*) WHERE {" +
+				"?s <%s> ?o." +
+				"}", 
+				property.getName());
+		ResultSet rs = executeSelectQuery(query);
+		int cnt = rs.next().get(rs.getResultVars().get(0)).asLiteral().getInt();
+		return cnt;
+		
+	}
+	
 	public SortedSet<ObjectProperty> getInverseObjectProperties(ObjectProperty property){
 		SortedSet<ObjectProperty> inverseObjectProperties = new TreeSet<ObjectProperty>();
 		String query = "SELECT ?p WHERE {" +

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