Insert or Update in Castle ActiveRecord

Question

Is there a built-in way to do an "insert-or-update" in Castle ActiveRecord?

Something along the lines of:

try
{
  ActiveRecordMediator<TEntity>.Create(e);
}
catch (Exception)
{
  ActiveRecordMediator<TEntity>.Update(e);
}

Answer 1

ActiveRecordMediator<Foo>.Save(foo);