public void addHreflang ( String hreflang ) { Assert . hasLength ( hreflang ) ; linkParams . add ( HREFLANG . paramName , hreflang ) ; }
The hreflang parameter when present is a hint indicating what the language of the result of dereferencing the link should be . Note that this is only a hint ; for example it does not override the Content - Language header of a HTTP response obtained by actually following the link . Multiple hreflang parameters on a single link - value indicate that multiple languages are available from the indicated resource .