code: @XmlElementDecl(namespace = "http://www.opengis.net/citygml/tunnel/2.0", name = "Door", substitutionHeadNamespace = "http://www.opengis.net/citygml/tunnel/2.0", substitutionHeadName = "_Opening")
      public JAXBElement<DoorType> createDoor(DoorType value) {
          return new JAXBElement<DoorType>(_Door_QNAME, DoorType.class, null, value);
      }
docs: Create an instance of {@link JAXBElement }{@code <}{@link DoorType }{@code >}
  
  @param value
  Java instance representing xml element's value.
  @return
  the new instance of {@link JAXBElement }{@code <}{@link DoorType }{@code >}