boolean function ( ) { return multiUserId ; }
allow many userids per provideruserid . if true , authentication is not possible concode_field_sep boolean multiUserId concode_elem_sep boolean multiProviderUserId concode_field_sep String getConnectionAddedRedirectUrl concode_elem_sep ConnectionFactory<S> getConnectionFactory concode_elem_sep SocialAuthenticationToken getAuthToken concode_elem_sep boolean isAuthenticatePossible concode_elem_sep boolean isMultiProviderUserId concode_elem_sep ConnectionCardinality getConnectionCardinality