code: public Map<CmsUUID, Boolean> getContainsElement() {
  
          if (m_containsElement == null) {
              m_containsElement = CmsCollectionsGenericWrapper.createLazyMap(new Transformer() {
  
                  public Object transform(Object input) {
  
                      return Boolean.valueOf(containsElement((CmsUUID)input));
                  }
              });
          }
          return m_containsElement;
      }
docs: Returns a lazy initialized map that describes if a certain element if part of this container.<p>
  
  @return a lazy initialized map that describes if a certain element if part of this container