Re: Object-relational impedence
From: Robert Martin <unclebob_at_objectmentor.com>
Date: Wed, 5 Mar 2008 01:10:01 -0600
Message-ID: <2008030501100188124-unclebob_at_objectmentorcom>
Date: Wed, 5 Mar 2008 01:10:01 -0600
Message-ID: <2008030501100188124-unclebob_at_objectmentorcom>
On 2008-03-03 18:34:39 -0600, Marshall <marshall.spight_at_gmail.com> said:
> In SQL, if I have two relations with x and y int columns, I can
> union them, or join on them, or whatever. There is no way,
> in fact, to forbid such a thing, just like in Java there is no way
> to allow such a thing.
You are confusing OO with static typing. In OO languages like Ruby, Python, or Smalltalk you can pass any object to any function irrespective of type.
-- Robert C. Martin (Uncle Bob) | email: unclebob_at_objectmentor.com Object Mentor Inc. | blog: www.butunclebob.com The Agile Transition Experts | web: www.objectmentor.com 800-338-6716 |Received on Wed Mar 05 2008 - 08:10:01 CET