doc

Author: bbeaudreault

hbase-client/src/main/java/org/apache/hadoop/hbase/client/ReversedScannerCallable.java

@@ -116,11 +116,10 @@ public void prepare(boolean reload) throws IOException {
   }
 
   /**
-   * Get the corresponding regions for an arbitrary range of keys.
+   * Get the last region before the endkey, which will be used to execute the reverse scan
    * @param startKey Starting row in range, inclusive
    * @param endKey Ending row in range, exclusive
-   * @return A list of HRegionLocation corresponding to the regions that contain
-   *         the specified range
+   * @return the last location, and the rowKey used to find it
    */
   private Pair<HRegionLocation, byte[]> locateLastRegionInRange(byte[] startKey, byte[] endKey) throws IOException {
     final boolean endKeyIsEndOfTable = Bytes.equals(endKey,