code: public CmsUUID readIdForUrlName(CmsDbContext dbc, String name) throws CmsDataAccessException {
  
          List<CmsUrlNameMappingEntry> entries = getVfsDriver(dbc).readUrlNameMappingEntries(
              dbc,
              dbc.currentProject().isOnlineProject(),
              CmsUrlNameMappingFilter.ALL.filterName(name));
          if (entries.isEmpty()) {
              return null;
          }
          return entries.get(0).getStructureId();
      }
docs: Reads the structure id which is mapped to a given URL name.<p>
  
  @param dbc the current database context
  @param name the name for which the mapped structure id should be looked up
  
  @return the structure id which is mapped to the given name, or null if there is no such id
  
  @throws CmsDataAccessException if something goes wrong