RDF_DEFAULT_BUNDLE

in modules/rdf/rdf.module

RDF bundle flag: Default bundle.

Implementations of hook_rdf_mapping() should use this constant for the 'bundle' key when defining a generic set of RDF mappings for an entity type. The defined with this constant (the default bundle mapping ) will be used when a new bundle is installed if there is no mapping defined for the bundle.

<?php
define('RDF_DEFAULT_BUNDLE', '');
?>

Related topics

RDF Mapping API

Functions to describe entities and bundles for RDFa.