/// <summary> /// Change the URI identifier for this data object. /// </summary> /// <remarks>This change will update all triples where the data object identity /// is the subject or object. It will not change predicates.</remarks> /// <param name="newIdentity">The new URI identifier</param> /// <param name="enforceClassUniqueConstraint">Add an update precondition to ensure that the update will fail if the store already /// contains an RDF resource with the same rdf:type(s) as this data object.</param> public IDataObject UpdateIdentity(string newIdentity, bool enforceClassUniqueConstraint) { if (newIdentity == null) { throw new ArgumentNullException("newIdentity", "DataObject Identity must not be null"); } if (String.IsNullOrWhiteSpace(newIdentity)) { throw new ArgumentException("DataObject Identity must not be an empty string or whitespace.", "newIdentity"); } if (newIdentity.Equals(Identity)) { // No change return(this); } if (IsNew) { // Simple case - we only have to change the uncommitted triples locally. CheckLoaded(); var ret = new DataObject(_store, newIdentity, true); ret.BindTriples(_triples.Select(t => ReplaceIdentity(t, newIdentity)), true, enforceClassUniqueConstraint); _store.ReplaceIdentity(Identity, newIdentity); Delete(); return(ret); } else { CheckLoaded(); var ret = new DataObject(_store, newIdentity, true); ret.BindTriples(_triples.Union(_store.GetReferencingTriples(this)).Select(t => ReplaceIdentity(t, newIdentity)), true, enforceClassUniqueConstraint); _store.ReplaceIdentity(Identity, newIdentity); Delete(); return(ret); } }