Index: src/java/org/apache/lucene/search/TopDocCollector.java
===================================================================
--- src/java/org/apache/lucene/search/TopDocCollector.java	(revision 685550)
+++ src/java/org/apache/lucene/search/TopDocCollector.java	(working copy)
@@ -29,10 +29,9 @@
  **/
 public class TopDocCollector extends HitCollector {
 
-  private ScoreDoc reusableSD;
-
-  int totalHits;
-  PriorityQueue hq;
+  protected ScoreDoc reusableSD;
+  protected int totalHits;
+  protected PriorityQueue hq;
     
   /** Construct to collect a given number of hits.
    * @param numHits the maximum number of hits to collect
@@ -41,7 +40,7 @@
     this(numHits, new HitQueue(numHits));
   }
 
-  TopDocCollector(int numHits, PriorityQueue hq) {
+  protected TopDocCollector(int numHits, PriorityQueue hq) {
     this.hq = hq;
   }