Generate methods in Peer classes to retrieve a single object from a table

Often, one knows that a database query will return at most a single object.
To get that object, the following code is needed:
List<Book> bookList = BookPeer.doSelect(criteria);
Book book = null;
if (bookList.size > 1)
{
throw new TooManyRowsException("...");
}
if (!bookList.isEmpty())
{
book = bookList.get(0);
}

There should be methods named doSelectSingleRecord(...) generated in the Peer class which contains teh above code.