It's really only with lists that the empty string == null argument
can be applied, because in real collections you don't use a value to
define an item in the collection, you define the item itself, and
supply it with a value to store. So if I say myArray[1] = , i'm
defining the item with the
Assuming application.persistentStuff is already instantiated as a singleton
and populated with the application-wide instance data you need, maybe
something like this would help:
on every request
cfset perRequestCFC =
createObject('component','perRequestCFC').init(application.persistentStuff,u
but, if you are creating the object in app scope, and x number of requests
cause the appstart code to run, then each subsequent request will overwrite
the last one, so there will still only be one instance of the object?
in saying that, I would do the lock because its nice and tidy.
Kerry, i don't think there's much of any reason to create an object and
place it in application scope unless you make it a singleton that persists
until the application scope times out. At least i can't think of one.
The MM docs say that if you create an object in Application.cfc's
Pat,
It's
obvious to me that as an application grows in complexity, modularity becomes
more and more essential. For instance, you can encapsulate complex functionality
within a CFC and use that onany page or templatewithin an
application. That's so cool when you get it working right. I
I think maybe some mis-communication here.
i don't think there's much of any reason to create an object and
place it in application scope unless you make it a singleton that persists
until the application scope times out
I agree.
you do need to lock that code block as shown for the reason
It is worth noting that if you are on shared hosting anything you put
into the Application scope can be viewed by the other sites on that
host. So if you put POP3 details, datasource authentication details in
the application scope you are essentially revealing this to everyone on
your host.
To
Im having a hard time convincing my team about
the benifits of modularising code, particularly
the use of cfinclude
Uh oh (;-)...
Recently, I needed to make a change to a section of a fusebox app that I
hadn't looked at for a while, and it was wonderful.
One known file shows which files get
You could probably define an init method in your super class that
initializes all the variables you want, then in your subclass you can
call Super.init() and then define any additional vars that you need in
the variables scope. That should work I think.
-Cliff
On 5/12/05, Peter H [EMAIL
On 5/12/05, Hal Helms [EMAIL PROTECTED] wrote:
Here's a common case: I have an object of type, Human, with an instance
variable, spouse, of type, Human. Now, if I call the getSpouse() method
(that rightly advertises that it returns a Human) on a single person, what
will I get? I might, in some
Is it possible to clone a CFC, create a completely independent
copy? How?
You have to write all the relevant code yourself, including calling
createObject() and copying all the base data etc etc.
That's what I wanted to be certain of, that there's no built-in function to
clone a cfc object.
Actually, I was looking for an example of when you need to know the
difference between a null value and a zero length string in a record set.
Ben Rogers
http://www.c4.net
v.508.240.0051
f.508.240.0057
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of
What if the concept of null values was introduced via two new functions:
NullNew() and IsNull()? I could assign a null value to variables with the
first function:
cfset myNull=NullNew()
cfreturn NullNew()
You could also use NullNew() to pass null values to Java function instead of
using
I guess a good compromise would be a second ListLenCountingBlanks function would be handy.
Or a CountElement() function where you pass in a string and tell it a substring to return the number of occurances for.
so you could say
cfset myLIst = a,,b,c,,h /
#CountElement(myList,,)+1# !---
Really, though, like Hal said in another post to this thread, Simon
Horwith said at PbD, and others have said... if you want Java, program in
Java. It's not what CF was meant for.
I think you've confused me with someone else or you've misunderstood what I
was saying. I am most certainly not
My best advise is Show Them. I have been in environments (as
subcontractor) where the large file approach has been in favor. I have
pleaded with them to let me do a small project with smaller, more focused
files.
It takes time, but as they maintain large file applications and a small
file
On 5/13/05, Ben Rogers [EMAIL PROTECTED] wrote:
Really, though, like Hal said in another post to this thread, Simon
Horwith said at PbD, and others have said... if you want Java, program in
Java. It's not what CF was meant for.
I think you've confused me with someone else or you've
On 5/13/05, enigment [EMAIL PROTECTED] wrote:
That's what I wanted to be certain of, that there's no built-in function to
clone a cfc object. Interesting omission.
There is no way to generically clone an object in any meaningful way
because of the semantics of state.
For a simple query and
For a simple query and record list of a few rows, using the 'request.MyCFC =
application.MyCFC' method, which we know isn't workable, processing the
request takes 10ms on my machine almost always. Using CreateObject every
time, it takes 20-40ms.
You're worrying about the wrong level of
I think it's a fine suggestion. However, I still think a function should
have to declare that it may return null values:
cffunction name=getCustomer returntype=Customer allownull=yes
...
/cffunction
AllowNull should be defaulted to no. That would be backwards compatible
with the existing
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Sean Corfield
Sent: Friday, May 13, 2005 10:23 AM
To: CFCDev@cfczone.org
Subject: Re: [CFCDev] Confusion about persistent CFCs
On 5/13/05, enigment [EMAIL PROTECTED] wrote:
That's what I wanted to
Hi,
Ya, I lurk on this list too; there are lots of us who do. I've noticed
loads of posts about DAOs, getters, setters etc. The gist of most of
the posts seems centered around finding a structured, rational way of
dealing with CF development and CFCs as a whole.
I've been looking for a
that a marketing spiel or what?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of Byron
Sent: 13 May 2005 16:00
To: CFCDev@cfczone.org
Subject: [CFCDev] very cool tool www.cfcpowertools.com
Hi,
Ya, I lurk on this list too; there are lots of us who do. I've
Sure it is. Most things are in one way or another, but this is an
honest one and really, you have nothing to lose but your
preconceptions.
Byron
On May 13, 2005, at 11:23 AM, Kerry wrote:
that a marketing spiel or what?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL
On 5/13/05, Byron [EMAIL PROTECTED] wrote:
Sure it is. Most things are in one way or another, but this is anhonest one and really, you have nothing to lose but yourpreconceptions.Byron
and $299
On May 13, 2005, at 11:23 AM, Kerry wrote: that a marketing spiel or what?
-Original Message-
Not just an empty question - but one that is pretty well explained and answered via essay format at:
http://www.artima.com/weblogs/viewpost.jsp?thread=71730
Now, normally I wouldn't post something like this here but in one of
his sections he starts talking about one of our favorite topics
You've got nothing to lose but more hair or more sleep.
and $299
-- Scott StrozBoyzoid.com___Some days you are the dog,Some days you are the tree.
--You are subscribed to cfcdev. To unsubscribe, send an email to
Code generation (just like any form of programming) is an interactive process. I've checked out a number of code generation tools and whilst they can save time they all seem to lack the flexibility to produce what I want. Who knows, may be this is different?
Cheers, Pete (aka
Wow, there's so much stuff in this thread already - I'm going to have
to spend some time responding to many of the issues raised here.
However, I'm going to start with Dave's post (because it's the closest
one to being on the mark).
On 5/13/05, Dave Carabetta [EMAIL PROTECTED] wrote:
At the end
On 5/12/05, Hal Helms [EMAIL PROTECTED] wrote:
Seriously, this is why I so strongly recommend using Java for model
components (as in model-view-controller), where it excels and using
ColdFusion for view and possibly controller stuff, where it excels.
What about implementing the data access
Hey guys I am trying to do something that should be very simple.
I have a cfc that I want to access as a soap service. This cfc is
running on a windows server that doesn't allow anonymous user login.
If I navigate to the url of the cfc like so,
http://www.sitename.com/test.cfc?WSDL. I get the
On 5/12/05, Hal Helms [EMAIL PROTECTED] wrote:
Here's a common case: I have an object of type, Human, with an instance
variable, spouse, of type, Human. Now, if I call the getSpouse() method
(that rightly advertises that it returns a Human) on a single person, what
will I get?
I'd argue you
I really don't agree that CFers should just write Java for models. One
of the big benefits of CF is the speed of development - far faster
than doing it in Java because it's a higher level language.
I agree with that too. It's frustrating because Java's OO is so
powerful and flexible that it
SELECT user.firstname AS parent, child.firstname AS child
FROM user
LEFT OUTER JOIN user child ON user.userID = child.parentID
If 'child' is the empty string, does the user not have a child, or is
the child's record incomplete, perhaps because it wasn't given a name
yet (as is not uncommon for
CF7 already has the ability to do most of this:
cfset nullValue = JavaCast(null,) /
cfif not structKeyExists(variables,'nullValue')
Null Value found.
/cfif
The only thing it doesn't support is returning a null instead of say a
struct or a query.
If you could do cfreturn JavaCast(null,) / I'd be
An alternative example is an article on a website that is created in a
series of steps.
First you add the title, author and publication dates.
At some later stage you add the summary and body.
At a later stage you upload any image you want to display with the article.
When deciding if an article
Hmmm...I'll have to defer to you on the difficulty of implemented null
support in CFMX, but in BlueDragon it shouldn't be too hard if you assume
that all pre-existing code treats null values as empty strings.
In fact, this is how BlueDragon is already implemented: we have an internal
data type
Obviously you can add an extra flag to the database to indicate that the
article has no image, but checking for null is a valid way to do it too.
This is probably just a matter of preference, but I don't like to overload
null values with extra meanings. I would either use bits to track this or
Spike wrote:
CF7 already has the ability to do most of this:
cfset nullValue = JavaCast(null,) /
cfif not structKeyExists(variables,'nullValue')
Null Value found.
/cfif
The only thing it doesn't support is returning a null instead of say a
struct or a query.
i think javacast is a special case.
You can pass objects to CFC methods, but you can't specify the java
datatype in the cfargument tag. You have to do that manually.
Other than that it works just fine:
cffunction name=testArgs
cfargument name=someList type=any required=true /
cfif
So, $299, what's your time worth per hour? If you're at $50/hour and
the tool saves you 6 hours you've broken even. You do the math.
The best things in life are not always free. Tom, the guy who developed
the tool has really put a lot into it, why shouldn't he get something
back? I feel the
SELECT user.firstname AS parent, child.firstname AS child
FROM user
LEFT OUTER JOIN user child ON user.userID = child.parentID
If 'child' is the empty string, does the user not have a child, or is
the child's record incomplete, perhaps because it wasn't given a name
yet (as is not
On 5/13/05, Paul Roe [EMAIL PROTECTED] wrote:
If I navigate to the url of the cfc like so,
http://www.sitename.com/test.cfc?WSDL. I get the appropriate wsdl
(Bear in mind that when I navigate to this url IIS forces me to enter
in my domain username/password).
When I try to create my soap
On 5/13/05, Spike [EMAIL PROTECTED] wrote:
The only thing it doesn't support is returning a null instead of say a
struct or a query.
If you could do cfreturn JavaCast(null,) / I'd be happy.
You can do that. But the returntype= needs to specify any which is
what folks are complaining about.
Oops!
Hit the send key by mistake there:
cfscript
try {
socket = createObject('java','java.net.Socket').init();
remoteAddress=socket.getRemoteSocketAddress();
if (not structKeyExists(variables,'remoteAddress')) {
remoteAddress = -1;
}
}
catch (Any e) {
Haha, exactly what I thought.
Try the blendo-matic 2000. It even answers the phone and does your laundry
for you.
-Original Message-
From: Kerry [mailto:[EMAIL PROTECTED]
Sent: Friday, May 13, 2005 8:23 AM
To: CFCDev@cfczone.org
Subject: RE: [CFCDev] very cool tool www.cfcpowertools.com
Sorry, Ben...
Sometimes these threads get tangled, you see. :)
I think that was mostly just general comments, with some thoughts
directed toward you (I guess responding to 4 messages in a thread with
a singleton post causes confusion... imagine that!)
Anyway, I think you're right... there's a
That's not what I'm finding:
cfscript
try {
socket = createObject('java','java.net.socket');
remoteAddress=socket.getRemoteSocketAddress();
}
catch (Any e) {
remoteAddress=-1;
}
writeoutput(#remoteAddress#);
/cfscript
Spike
Paul Hastings wrote:
Spike wrote:
CF7 already has the
Yeah, I don't think it's good design either, but it is valid and as you
say it's a matter of preference whether you like it or not.
Spike
Ben Rogers wrote:
Obviously you can add an extra flag to the database to indicate that the
article has no image, but checking for null is a valid way to do it
Byron, you contacted the list with what sounded like a thinly
disguised bit of advertising. Then in one of your replies after
being asked if you were marketing something, you obliquely replied
saying that most things are a form of marketing (whatever things
was supposed to refer to), which
If the java method can return a null you need to check if the variable
exists after assigning it. If it doesn't exist you got a null back.
I used a similar solution on this UDF:
http://www.cfmentor.com/code/index.cfm?action=scriptid=181
Massimo Foti
Dreamweaver:
Yes,
That's what I was saying.
If you could specify a return type of Struct and have cfreturn
JavaCast(null,) / it would be good enough for me.
Spike
Sean Corfield wrote:
On 5/13/05, Spike [EMAIL PROTECTED] wrote:
The only thing it doesn't support is returning a null instead of say a
struct or a
Well how about interfaces. Now obviously interfaces where the compiler
verifies that the cfc has implemented the defined method signatures of
the interface is not going to happen in CF. But I think a light weight
style of interfaces would be easy to implement, appropriate to CF, an
useful.
Peter,
Maybe I'm missing something... lord knows it's even likely.
My question is this: Because CFCs don't require variable declaration, I
generally use my get/set methods to define what variables are available
via a bean... hence there's no inheriting of variables to begin with. I
would guess
On 5/13/05, Paul Hastings [EMAIL PROTECTED] wrote:
cfscript
try {
nulledVar=someJavaObjectThatCanReturnNull();
}
catch (Any e) {
nulledVar=something;
}
writeoutput(#nulledVar#);
/cfscript
This bombs because you are not testing for null. It won't catch the
(valid) return
As some of you might know, I've been developing the Mach-II Bean Creator
over the past few months. A new step has been taken and I've renamed
the Mach-II Bean Creator as Rooibos Generator in anticipation of a
completely new code base. Rooibos' new home will be at PekoeTools.com.
For more
Besides, you probably piss more than down the drain in coffee from
Starbuck's every month. Is that money well spent?
Scott doesn't drink coffee.
:)
--
Get Glued!
The Model-Glue ColdFusion Framework
http://www.model-glue.com
--
You
Yeah, you're completely missing the point. You're explicitly relying
on CF's interpretation of null to be a non-numeric simple value (i.e.
the empty string), rather than actually checking to see if the field
is null (which is what you should be doing).
Perhaps I'm missing the point because
On 5/13/05, Ben Rogers [EMAIL PROTECTED] wrote:
cfif not isNull(childID)
cfif isNumeric(childID)
This goes back to my point that all the is*() functions would need to
handle null gracefully so that, in this case, isNumeric(null) returns
false.
I'd like to see some code that clearly
Joe - You beat me to the punch :)
Byron,
I was not knocking the product, but the combination of your
'testimonial' and the price made me extremely skeptical. $299
just seems like a steep price for what the procduct claims to do.
I think the developer who came up with CFC Power Tools would sell
isNumeric should test whether a given value is a number. It's
debatable whether it should test whether a given value is both not
null and a number, but CFML is such that it doesn't matter.
Personally, I'd say that isX functions should return false for null
values. Anyone know offhand how Java's
No coffee! Man, I can't imagine how I could do that...
Scott,
I don't blame you for being skeptical; not in the least and on second read my initial post was a little door-to-door salesman like. As for price, well everyone has differences of opinion about the values of things, I suppose because
On 5/13/05, Dave Watts [EMAIL PROTECTED] wrote:
I suspect that people are skeptical about you, more than about the product
you mentioned.
http://www.cfblackbox.com/community.cfm?users_action=user_profileuser_id=byronj
--
Sean A Corfield -- http://corfield.org/
Team Fusebox --
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