@Override
  public final byte[] getEndRow(int stripeIndex) {
    return (stripeIndex == state.stripeEndRows.length
      ? OPEN_KEY
      : state.stripeEndRows[stripeIndex]);
  }
Finds the stripe index for the stripe containing a row provided externally for get/scan.
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StripeStoreFileManager.java