code: @Override
      public I_CmsExtractionResult extractContent(CmsObject cms, CmsResource resource, I_CmsSearchIndex index)
      throws CmsException {
  
          return extractContent(cms, resource, index, null);
      }
docs: Returns the raw text content of a VFS resource of type <code>CmsResourceTypeContainerPage</code>.<p>
  
  @see org.opencms.search.documents.I_CmsSearchExtractor#extractContent(CmsObject, CmsResource, I_CmsSearchIndex)