Method flush

src/main/java/org/sfj/ChiseledMap.java:454–457

Flush any buffered changes to disk, fsync. @throws IOException If you get an IOException, literally no guarantees can be made about the on disk state of the data.

()

   * can be made about the on disk state of the data.
   */
  public void flush() throws IOException {
    flushBuffer();
    fc.force(false);
  }

  /**
   * Retrieve the value associated with a specified key.