[orientdb] fixed scan with readallfields

orientdb/src/main/java/com/yahoo/ycsb/db/OrientDBClient.java

@@ -280,7 +280,6 @@ public class OrientDBClient extends DB {
       int entrycount = 0;
       final OIndexCursor entries = dictionary.getIndex().iterateEntriesMajor(startkey, true, true);
 
-      if (fields != null && !fields.isEmpty()) {
       while (entries.hasNext() && entrycount < recordcount) {
         final OIdentifiable entry = entries.next();
         final ODocument document = entry.getRecord();
@@ -288,13 +287,14 @@ public class OrientDBClient extends DB {
         final HashMap<String, ByteIterator> map = new HashMap<String, ByteIterator>();
         result.add(map);
 
+        if (fields != null && !fields.isEmpty()) {
           for (String field : fields) {
             map.put(field, new StringByteIterator((String) document.field(field)));
           }
+        }
 
         entrycount++;
       }
-      }
 
       return Status.OK;
     } catch (Exception e) {