/**
* Changes the number stored at the given key, i.e. adds some value. Assumes <tt>0</tt> if no
* value exists at <tt>key</tt>.
*
* @param reqs the request list containing a single add_on_nr operation
* @throws ConnectionException if the connection is not active or a communication error occurs or
* an exit signal was received or the remote node sends a message containing an invalid cookie
* @throws TimeoutException if a timeout occurred while trying to write the value
* @throws NotANumberException if the previously stored value was no number
* @throws UnknownException if any other error occurs
* @see #addOnNr(OtpErlangObject, OtpErlangLong)
* @see #addOnNr(OtpErlangObject, OtpErlangDouble)
* @since 3.9
*/
protected void addOnNr_(final RequestList reqs)
throws ConnectionException, TimeoutException, NotANumberException, UnknownException {
try {
final ResultList result = req_list(reqs);
if (result.size() == 1) {
result.processAddOnNrAt(0);
} else {
throw new UnknownException(result.getResults());
}
} catch (final AbortException e) {
// should not occur (we did not commit anything)
throw new UnknownException(e);
}
}
