1 files changed, 2 insertions, 4 deletions

diff --git a/src/uk/ac/ox/cs/pagoda/query/GapTupleIterator.java b/src/uk/ac/ox/cs/pagoda/query/GapTupleIterator.java
index 58303bb..2983b2e 100644
--- a/src/uk/ac/ox/cs/pagoda/query/GapTupleIterator.java
+++ b/src/uk/ac/ox/cs/pagoda/query/GapTupleIterator.java
@@ -1,10 +1,10 @@
 package uk.ac.ox.cs.pagoda.query;
 
-import java.util.Iterator;
-
 import uk.ac.ox.cs.JRDFox.JRDFStoreException;
 import uk.ac.ox.cs.JRDFox.store.DataStore;
 
+import java.util.Iterator;
+
 public abstract class GapTupleIterator<T> implements Iterator<T> {
         
         public static final String gapPredicateSuffix = "_AUXg"; 
@@ -17,8 +17,6 @@ public abstract class GapTupleIterator<T> implements Iterator<T> {
         
         public void compile(String programText) throws JRDFStoreException {}
         
-        public abstract boolean isValid();
-        
         public abstract void save(String file); 
         
         public abstract void addBackTo() throws JRDFStoreException;