/**
* Changes the list stored at the given key, i.e. first adds all items in <tt>toAdd</tt> then
* removes all items in <tt>toRemove</tt>. Assumes en empty list if no value exists at
* <tt>key</tt>.
*
* @param key the key to write the value to
* @param toAdd a list of values to add to a list
* @param toRemove a list of values to remove from a list
* @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 NotAListException if the previously stored value was no list
* @throws UnknownException if any other error occurs
* @since 3.9
*/
public void addDelOnList(
final OtpErlangObject key, final OtpErlangList toAdd, final OtpErlangList toRemove)
throws ConnectionException, TimeoutException, NotAListException, UnknownException {
try {
final RequestList reqs = new RequestList();
reqs.addAddDelOnList(key, toAdd, toRemove);
final ResultList result = req_list(reqs);
if (result.size() == 1) {
result.processAddDelOnListAt(0);
} else {
throw new UnknownException(result.getResults());
}
} catch (final AbortException e) {
// should not occur (we did not commit anything)
throw new UnknownException(e);
}
}
