1 files changed, 12 insertions, 6 deletions

diff --git a/src/uk/ac/ox/cs/pagoda/query/QueryRecord.java b/src/uk/ac/ox/cs/pagoda/query/QueryRecord.java
index 6c87eb5..15b2c01 100644
--- a/src/uk/ac/ox/cs/pagoda/query/QueryRecord.java
+++ b/src/uk/ac/ox/cs/pagoda/query/QueryRecord.java
@@ -69,7 +69,7 @@ public class QueryRecord {
         }
         
         public boolean updateLowerBoundAnswers(AnswerTuples answerTuples) {
-                if (answerTuples == null) return false;                         
+                if (answerTuples == null) return false;
                 boolean update = false;
                 for (AnswerTuple tuple; answerTuples.isValid(); answerTuples.moveNext()) {
                         tuple = answerTuples.getTuple();
@@ -77,8 +77,12 @@ public class QueryRecord {
                                 soundAnswerTuples.add(tuple);
                                 if (gapAnswerTuples != null)
                                         gapAnswerTuples.remove(tuple);
-                                update = true; 
+                                update = true;
                         }
+                        // TODO could be wrong, but if possible add the check
+//                      else if (! gapAnswerTuples.contains(tuple)) {
+//                              throw new IllegalArgumentException("The lower bound answers must be contained in the upper ones!");
+//                      }
                 }
                 Utility.logInfo("The number of answers in the lower bound: " + soundAnswerTuples.size()); 
 
@@ -103,14 +107,16 @@ public class QueryRecord {
                         for (; answerTuples.isValid(); answerTuples.moveNext()) {
                                 ++number; 
                         }
-                        Utility.logInfo("The number of answers returned by the upper bound: " + number);
+                        Utility.logInfo("The number of answers returned by an upper bound: " + number);
                         if (number <= soundAnswerTuples.size()) {
                                 if (gapAnswerTuples != null) gapAnswerTuples.clear(); 
                                 else gapAnswerTuples = new HashSet<AnswerTuple>();
                                         
-                                Utility.logInfo("The number of answers in the upper bound: " + (soundAnswerTuples.size() + gapAnswerTuples.size()));
+                                Utility.logInfo("The number of upper bound answers: " + (soundAnswerTuples.size() + gapAnswerTuples.size()));
                                 return false;
                         }
+                        else if (number < soundAnswerTuples.size())
+                                throw new IllegalArgumentException("The upper bound answers must contain all the lower bound ones!");
                         answerTuples.reset();
                 }
                         
@@ -362,8 +368,8 @@ public class QueryRecord {
         }
         
         public enum Step {LowerBound, UpperBound, ELLowerBound, 
-                Fragment, FragmentRefinement, Summarisation, Dependency, FullReasoning};  
-        
+                Fragment, FragmentRefinement, Summarisation, Dependency, FullReasoning}
+
         double[] timer;
 
         public void addProcessingTime(Step step, double time) {