protected String createId(String group, String id) {
        if (group == null || id == null || group.contains(idSeparator) || id.contains(idSeparator)) {
            throw new IllegalArgumentException(String.format("Illegal arguments specified for column name creation (group = %s, id = %s)", group, id));
        }
        return String.format("%s%s%s", group, idSeparator, id);
    }
protected String createId(String group, String id) {
        if (group == null || id == null || group.contains(idSeparator) || id.contains(idSeparator)) {
            throw new IllegalArgumentException(String.format("Illegal arguments specified for column name creation (group = %s, id = %s)", group, id));
        }
        return String.format("%s%s%s", group, idSeparator, id);
    }
protected String createId ( String group , String id ) { if ( group == null || id == null || group . contains ( idSeparator ) || id . contains ( idSeparator ) ) { throw new IllegalArgumentException ( String . format ( "Illegal arguments specified for column name creation (group = %s, id = %s)" , group , id ) ) ; } return String . format ( "%s%s%s" , group , idSeparator , id ) ; }
@warn method description missing
@warn parameter descriptions missing
@warn exception IllegalArgumentException description missing

@param group
@param id
@return
@throws IllegalArgumentException
@warn method description missing @warn parameter descriptions missing @warn exception IllegalArgumentException description missing