returns registrable part of the domain for the given domain name or null if given domain represents a public suffix . concode_field_sep Map<String,DomainType> rules concode_elem_sep Map<String,DomainType> exceptions concode_field_sep boolean hasException concode_elem_sep boolean hasEntry concode_elem_sep boolean matches concode_elem_sep boolean matches concode_elem_sep boolean hasRule
String function ( final String arg0 ) { return getDomainRoot ( arg0 , null ) ; }