Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

I agree that a one-to-one mapping between objects and tables is not always a good idea (not to say it's always a bad idea either - sometimes there is a one-to-one between tables and business objects).

However, I don't think that was the point herveus was making. We're not talking about the process of mapping relational databases to objects.

herveus was saying that there can be useful insights in looking at class/object hierarchies in the context of database design and normalisation.

In particular, refactoring an object hierarchy with lots of objects with duplicate state, to one with fewer objects that share state (aka flyweight pattern) is basically normalisation under another name.

That's how I read it anyway :-)

Update: Judging by the reply it looks like I was misinterpreting herveus, hence stricken text.

In reply to Re^2: On Flyweights... (with sneaky segue to data modeling) by adrianh
in thread On Flyweights... (with sneaky segue to data modeling) by herveus

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or or How to display code and escape characters are good places to start.
Log In?

What's my password?
Create A New User
Domain Nodelet?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others pondering the Monastery: (1)
As of 2022-10-02 18:48 GMT
Find Nodes?
    Voting Booth?
    My preferred way to holiday/vacation is:

    Results (12 votes). Check out past polls.