/// <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);
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);
Delete();
return(ret);
}
}
