public Collection < Object > getAll ( String name ) { Object value = get ( name ) ; if ( value == null ) { return Collections . emptySet ( ) ; } if ( value instanceof Collection < ? > ) { @ SuppressWarnings ( "unchecked" ) Collection < Object > collectionValue = ( Collection < Object > ) value ; return Collections . unmodifiableCollection ( collectionValue ) ; } return Collections . singleton ( value ) ; }
Returns all query parameter values for the given query parameter name .