From 9ce65c5a963b03ee97fe9cb6c5aa65a3c04a80a8 Mon Sep 17 00:00:00 2001
From: yzhou <yujiao.zhou@gmail.com>
Date: Tue, 21 Apr 2015 10:34:27 +0100
Subject: initial version

---
 src/uk/ac/ox/cs/pagoda/rules/OverApproxBoth.java | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 src/uk/ac/ox/cs/pagoda/rules/OverApproxBoth.java

(limited to 'src/uk/ac/ox/cs/pagoda/rules/OverApproxBoth.java')

diff --git a/src/uk/ac/ox/cs/pagoda/rules/OverApproxBoth.java b/src/uk/ac/ox/cs/pagoda/rules/OverApproxBoth.java
new file mode 100644
index 0000000..3cc2aba
--- /dev/null
+++ b/src/uk/ac/ox/cs/pagoda/rules/OverApproxBoth.java
@@ -0,0 +1,24 @@
+package uk.ac.ox.cs.pagoda.rules;
+
+import java.util.Collection;
+import java.util.LinkedList;
+
+import org.semanticweb.HermiT.model.AtLeastDataRange;
+import org.semanticweb.HermiT.model.DLClause;
+
+public class OverApproxBoth implements Approximator {
+	
+	Approximator approxDist = new OverApproxDisj(), approxExist = new OverApproxExist();
+		
+	@Override
+	public Collection<DLClause> convert(DLClause clause, DLClause originalClause) {
+		Collection<DLClause> ret = new LinkedList<DLClause>(); 
+		for (DLClause tClause: approxDist.convert(clause, originalClause)) {
+			if (tClause.getHeadLength() > 0 && tClause.getHeadAtom(0).getDLPredicate() instanceof AtLeastDataRange) 
+				continue; 
+			ret.addAll(approxExist.convert(tClause, originalClause)); 
+		}
+		return ret; 
+	}
+		
+}
-- 
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