code: public CmsResource readParentFolder(CmsRequestContext context, CmsUUID structureId) throws CmsException {
  
          CmsDbContext dbc = m_dbContextFactory.getDbContext(context);
          CmsResource result = null;
          try {
              result = m_driverManager.readParentFolder(dbc, structureId);
          } catch (Exception e) {
              dbc.report(
                  null,
                  Messages.get().container(
                      Messages.ERR_READ_PARENT_FOLDER_2,
                      dbc.currentProject().getName(),
                      structureId),
                  e);
          } finally {
              dbc.clear();
          }
          return result;
      }
docs: Returns the parent folder to the given structure id.<p>
  
  @param context the current request context
  @param structureId the child structure id
  
  @return the parent folder <code>{@link CmsResource}</code>
  
  @throws CmsException if something goes wrong