Some CFC's Concept Problems For Me Instead?

[thenotorious_flag]

I did interviewed last time and repeatdly i asked the same question again & again:

1. Does Coldfusion CFC Support Overriding & Overloading.

2. Does Coldfusion CFC Can Be used as a Constructor

3. Does the Clothes of Plymorphism and Encapsulation be added to the Coldfusion CFC's

4. Why We Use Cfthrow and Cfrethrow

5. Where are triggers Used in Coldfusion?

Well To be honest, I do not know the answer of the above.

I know inheritance is possible in CFC but above i am not clear much. I did try to find out in google but unlucky.

If some of U Please know how to define above Please guide through here to all these concepts applied or not?

Cheers

[Newsgroup_User]

> 1. Does Coldfusion CFC Support Overriding & Overloading.

Overriding: yes. Overloading: no.


> 2. Does Coldfusion CFC Can Be used as a Constructor

Not really. There's a notion of a "pseudo constructor" which is any code
within the CFC which is outwith any <cffunction> block. THat's called when
the CFC is instantiated. It's not possible to parameterise this though. A
de facto standard has been adopted by many people in that a CFC will ahev
an init() method, which anyone suing the CFC *should* call when invoking
the CFC, but there's nothing enforcing this.


> 3. Does the Clothes of Plymorphism and Encapsulation be added to the
> Coldfusion CFC's

To a reasonable degree, yes.


> 4. Why We Use Cfthrow and Cfrethrow

You can look this one up. It's not a specific CF question, it's just a
programming practices one.


> 5. Where are triggers Used in Coldfusion?

Um... they're not? Teriggers are a DB concept.

HTH.

--
Adam

[thenotorious_flag]

Not really. There's a notion of a "pseudo constructor" which is any code
within the CFC which is outwith any <cffunction> block. THat's called when
the CFC is instantiated. It's not possible to parameterise this though. A
de facto standard has been adopted by many people in that a CFC will ahev
an init() method, which anyone suing the CFC *should* call when invoking
the CFC, but there's nothing enforcing this.

Can U Please elaborate tis Please?

[Newsgroup_User]

> Not really. There's a notion of a "pseudo constructor" which is any code
> within the CFC which is outwith any <cffunction> block. THat's called when
> the CFC is instantiated. It's not possible to parameterise this though. A
> de facto standard has been adopted by many people in that a CFC will ahev
> an init() method, which anyone suing the CFC *should* call when invoking
> the CFC, but there's nothing enforcing this.
>
> Can U Please elaborate tis Please?

I... don't know... what else to say. That's it.

I'm not a search engine you know ;-)

However: Google is.

Or, hey, there's the documentation:
http://livedocs.adobe.com/coldfusion/8/buildingComponents_01.html

Read that lot, have a look around at what other people are saying about
init() methods in CFCs and pseudo-constructors, and come back here if
you've got some specific questions.

I'm glad to help, but I'm reluctant to spoon-feed, if you know what I mean.

--
Adam