Method scan

src/core/SaltScanner.java:522–528

Starts the scanner and is called recursively to fetch the next set of rows from the scanner. @return The map of spans if loaded successfully, null if no data was found

()

    * found
    */
    public Object scan() {
      if (scanner_start < 0) {
        scanner_start = DateTime.nanoTime();
      }
      fetch_start = DateTime.nanoTime();
      return scanner.nextRows().addCallback(this).addErrback(new ErrorCb());
    }

    /**
    * Iterate through each row of the scanner results, parses out data