code: @Nonnull
    public static IPSQueryBinding getQueryBindingOfNameOrThrow (@Nullable final String sName) throws SchematronBindException
    {
      final IPSQueryBinding aQB = getQueryBindingOfName (sName);
      if (aQB == null)
        throw new SchematronBindException ("No query binding implementation present for query binding '" + sName + "'");
      return aQB;
    }
docs: Get the query binding with the specified name
  
  @param sName
  The name of the query binding to look up. May be <code>null</code>.
  @return Never <code>null</code>.
  @throws SchematronBindException
  In case the query binding could not be resolved!