Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW

comment on

( [id://3333]=superdoc: print w/replies, xml ) Need Help??

This actually brings up a very interesting OO design question. For functionality that seems to be common among classes, whether it should be method(s) in the inherit structure, or should be a seperate class on its own.

Obviously the answer is "depend", lots of times "depends" on your perception. Let's look at two particular cases we have here: 1) authorization, and 2) DB connection.

If I design, I will have seperate classes for each of them.

For authorization, if the class should not be accessed, then it should not be "touched" at all. If the authorization functionality is a method of the class itself, obviously the class will be touched in order to to determine whether it should be touched, which is logically a loop hole. So a seperate class should be employed.

For the DB connection, this is a typical good opportunity for class factory. This class factory produces classes that wrap DB connections. For other classes in your application that access the DB , there is no need for them to know the details such as how to get DB connection, or what is the maximum number of connections allowed etc, even not through inheritance. All they care is to ask the class factory for a class that represents DB connection.

In reply to Re: User authorization and design of larger web/intranet applications. by pg
in thread User authorization and design of larger web/intranet applications. by techcode

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 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?Last hourOther CB clients
Other Users?
Others surveying the Monastery: (5)
As of 2024-05-30 10:25 GMT
Find Nodes?
    Voting Booth?

    No recent polls found