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

---
 .../cs/pagoda/constraints/ToBeRemovedBottom.java   | 36 ++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 src/uk/ac/ox/cs/pagoda/constraints/ToBeRemovedBottom.java

(limited to 'src/uk/ac/ox/cs/pagoda/constraints/ToBeRemovedBottom.java')

diff --git a/src/uk/ac/ox/cs/pagoda/constraints/ToBeRemovedBottom.java b/src/uk/ac/ox/cs/pagoda/constraints/ToBeRemovedBottom.java
new file mode 100644
index 0000000..415119a
--- /dev/null
+++ b/src/uk/ac/ox/cs/pagoda/constraints/ToBeRemovedBottom.java
@@ -0,0 +1,36 @@
+package uk.ac.ox.cs.pagoda.constraints;
+
+import java.util.Collection;
+import java.util.LinkedList;
+
+import org.semanticweb.HermiT.model.Atom;
+import org.semanticweb.HermiT.model.DLClause;
+import org.semanticweb.HermiT.model.Term;
+
+public class ToBeRemovedBottom implements BottomStrategy {
+
+	@Override
+	public Collection<DLClause> process(Collection<DLClause> clauses) {
+		Collection<DLClause> ret = new LinkedList<DLClause>(); 
+		for (DLClause clause: clauses)
+			if (clause.getHeadLength() != 0)
+				ret.add(clause); 
+		return ret;
+	}
+
+	@Override
+	public boolean isBottomRule(DLClause clause) {
+		return false;
+	}
+
+	@Override
+	public Atom[] getEmptyHead(Term t) {
+		return null;
+	}
+
+	@Override
+	public int getBottomNumber() {
+		return 0;
+	}
+
+}
-- 
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