@Override
  public StoreFileScanner getPreadScanner(boolean cacheBlocks, long readPt, long scannerOrder,
    boolean canOptimizeForNonNullColumn) {
    return getReader().getStoreFileScanner(cacheBlocks, true, false, readPt, scannerOrder,
      canOptimizeForNonNullColumn);
  }
A mock used so our tests don't deal with actual StoreFiles
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/MockHStoreFile.java