typedef struct _atom_backend AtomBackend;
+AtomBackend *atom_backend_new (void);
+void atom_backend_retrieve_resource_set (AtomBackend *,
+ Atom * (AtomCtx *, IRI *));
Atom * atom_retrieve_resource (AtomCtx *, IRI *);
AtomBackend * atom_backend (AtomCtx *);
void atom_backend_set (AtomCtx *, AtomBackend *);