RE: [Flashcoders] Quick question about dynamic groupings
A generic object has no meaning, you lose typecasting and all the
benefits of using a custom class, like for example, code completion.
Remember anonymous functions in AS1/2 and why they were bad? It's not
quite as bad to use generic objects, but still not good practice IMO.
With VOs, you know what properties it contains, and that's very useful
in situations, like for example, when you attach data to an event and
want to use it on the other end. Believe me, VOs are worth the slight
extra effort they are to create.
Jason Merrill
Bank of America Global Learning
Learning Performance Solutions
Join the Bank of America Flash Platform Community and visit our
Instructional Technology Design Blog
(note: these are for Bank of America employees only)
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Cor
Sent: Monday, April 26, 2010 4:23 PM
To: 'Flash Coders List'
Subject: RE: [Flashcoders] Quick question about dynamic groupings
Hi Jason,
Thank you.
So the personVO.as should look like this:
package
{
class PersonVO
{
public var firstName:String;
public var lastName:String;
public var phoneNumber:Number;
public var indicatorColor:uint;
}
}
Now I think I understand what you are doing, but I lost to see the
benefit of the VO over doing it with a generic Object.
Because it is now in a public array I can address everything.
Like this:
var personVO:PersonVO = new Object();
personVO.firstName = personnodex...@firstname; etc..
Or maybe I don't understand the VO concept???
Regards
Cor
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Merrill,
Jason
Sent: maandag 26 april 2010 15:52
To: Flash Coders List
Subject: RE: [Flashcoders] Quick question about dynamic groupings
Could you extend this with an example on the part of:
I typically do is load in XML data and create VOs from that (in my
Model
class) to use in my app.
Sure. Here is an example of what the parsing might look like inside
your model class. If your XML looked like this:
xml
people
person firstName=Hank lastName=Aaron
phoneNumber=7043237564 indicatorColor=0xe39132 /
person firstName=Fred lastName=Astaire
phoneNumber=9082321214 indicatorColor=0xe73721 /
person firstName=Judy lastName=Garland
phoneNumber=3107382234 indicatorColor=0xd4e355 /
person firstName=Marilyn lastName=Monroe
phoneNumber=3107673721 indicatorColor=0xbab5ab /
/people
/xml
Then inside your model class, you may have some code like this (which of
course would run after the XML is loaded):
public var personVOs:Array = []; //array of PersonVOs
private function createPersonVOs():void
{
for each (var personNodeXML:XML in myXML.people.person)
{
var personVO:PersonVO = new PersonVO();
personVO.firstName = personnodex...@firstname;
personVO.lastName = personnodex...@lastname;
personVO.phoneNumber =
Number(personnodex...@phonenumber);
personVO.indicatorColor =
uint(personnodex...@indicatorcolor);
personVOs.push(personVO);
}
}
So now, you have personVOs as a public property in your model you can
call and get the people information from their VO class. Does that
help?
Jason Merrill
Bank of America Global Learning
Learning Performance Solutions
Join the Bank of America Flash Platform Community and visit our
Instructional Technology Design Blog
(note: these are for Bank of America employees only)
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Cor
Sent: Saturday, April 24, 2010 6:53 AM
To: 'Flash Coders List'
Subject: RE: [Flashcoders] Quick question about dynamic groupings
Hi Jason,
Nice explaination!
Thanks!
Could you extend this with an example on the part of:
I typically do is load in XML data and create VOs from that (in my
Model
class) to use in my app.
Kind regards
Cor van Dooren
The Netherlands
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Re: [Flashcoders] Quick question about dynamic groupings
Yup - using VOs now - and I have produced documentation with VisDoc that
include them as well. Thanks everyone.
Eric
On Thu, Apr 29, 2010 at 8:23 AM, Merrill, Jason
jason.merr...@bankofamerica.com wrote:
A generic object has no meaning, you lose typecasting and all the
benefits of using a custom class, like for example, code completion.
Remember anonymous functions in AS1/2 and why they were bad? It's not
quite as bad to use generic objects, but still not good practice IMO.
With VOs, you know what properties it contains, and that's very useful
in situations, like for example, when you attach data to an event and
want to use it on the other end. Believe me, VOs are worth the slight
extra effort they are to create.
Jason Merrill
Bank of America Global Learning
Learning Performance Solutions
Join the Bank of America Flash Platform Community and visit our
Instructional Technology Design Blog
(note: these are for Bank of America employees only)
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Cor
Sent: Monday, April 26, 2010 4:23 PM
To: 'Flash Coders List'
Subject: RE: [Flashcoders] Quick question about dynamic groupings
Hi Jason,
Thank you.
So the personVO.as should look like this:
package
{
class PersonVO
{
public var firstName:String;
public var lastName:String;
public var phoneNumber:Number;
public var indicatorColor:uint;
}
}
Now I think I understand what you are doing, but I lost to see the
benefit of the VO over doing it with a generic Object.
Because it is now in a public array I can address everything.
Like this:
var personVO:PersonVO = new Object();
personVO.firstName = personnodex...@firstname; etc..
Or maybe I don't understand the VO concept???
Regards
Cor
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Merrill,
Jason
Sent: maandag 26 april 2010 15:52
To: Flash Coders List
Subject: RE: [Flashcoders] Quick question about dynamic groupings
Could you extend this with an example on the part of:
I typically do is load in XML data and create VOs from that (in my
Model
class) to use in my app.
Sure. Here is an example of what the parsing might look like inside
your model class. If your XML looked like this:
xml
people
person firstName=Hank lastName=Aaron
phoneNumber=7043237564 indicatorColor=0xe39132 /
person firstName=Fred lastName=Astaire
phoneNumber=9082321214 indicatorColor=0xe73721 /
person firstName=Judy lastName=Garland
phoneNumber=3107382234 indicatorColor=0xd4e355 /
person firstName=Marilyn lastName=Monroe
phoneNumber=3107673721 indicatorColor=0xbab5ab /
/people
/xml
Then inside your model class, you may have some code like this (which of
course would run after the XML is loaded):
public var personVOs:Array = []; //array of PersonVOs
private function createPersonVOs():void
{
for each (var personNodeXML:XML in myXML.people.person)
{
var personVO:PersonVO = new PersonVO();
personVO.firstName = personnodex...@firstname;
personVO.lastName = personnodex...@lastname;
personVO.phoneNumber =
Number(personnodex...@phonenumber);
personVO.indicatorColor =
uint(personnodex...@indicatorcolor);
personVOs.push(personVO);
}
}
So now, you have personVOs as a public property in your model you can
call and get the people information from their VO class. Does that
help?
Jason Merrill
Bank of America Global Learning
Learning Performance Solutions
Join the Bank of America Flash Platform Community and visit our
Instructional Technology Design Blog
(note: these are for Bank of America employees only)
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Cor
Sent: Saturday, April 24, 2010 6:53 AM
To: 'Flash Coders List'
Subject: RE: [Flashcoders] Quick question about dynamic groupings
Hi Jason,
Nice explaination!
Thanks!
Could you extend this with an example on the part of:
I typically do is load in XML data and create VOs from that (in my
Model
class) to use in my app.
Kind regards
Cor van Dooren
The Netherlands
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RE: [Flashcoders] Quick question about dynamic groupings
The extra effort is no problem.
The way of using VOs in MVC is where my lack of knowledge lays, and I am
trying to learn it...
And you are helping very well on the way.
I just need those little (working) examples to get me on track of fully
understanding.
And sometimes technical stuff is extra difficult because English is not my
native language.
Thanks again, Jason.
And of course all other participants!
Regards
Cor
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Merrill,
Jason
Sent: donderdag 29 april 2010 14:24
To: Flash Coders List
Subject: RE: [Flashcoders] Quick question about dynamic groupings
A generic object has no meaning, you lose typecasting and all the
benefits of using a custom class, like for example, code completion.
Remember anonymous functions in AS1/2 and why they were bad? It's not
quite as bad to use generic objects, but still not good practice IMO.
With VOs, you know what properties it contains, and that's very useful
in situations, like for example, when you attach data to an event and
want to use it on the other end. Believe me, VOs are worth the slight
extra effort they are to create.
Jason Merrill
Bank of America Global Learning
Learning Performance Solutions
Join the Bank of America Flash Platform Community and visit our
Instructional Technology Design Blog
(note: these are for Bank of America employees only)
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Cor
Sent: Monday, April 26, 2010 4:23 PM
To: 'Flash Coders List'
Subject: RE: [Flashcoders] Quick question about dynamic groupings
Hi Jason,
Thank you.
So the personVO.as should look like this:
package
{
class PersonVO
{
public var firstName:String;
public var lastName:String;
public var phoneNumber:Number;
public var indicatorColor:uint;
}
}
Now I think I understand what you are doing, but I lost to see the
benefit of the VO over doing it with a generic Object.
Because it is now in a public array I can address everything.
Like this:
var personVO:PersonVO = new Object();
personVO.firstName = personnodex...@firstname; etc..
Or maybe I don't understand the VO concept???
Regards
Cor
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Merrill,
Jason
Sent: maandag 26 april 2010 15:52
To: Flash Coders List
Subject: RE: [Flashcoders] Quick question about dynamic groupings
Could you extend this with an example on the part of:
I typically do is load in XML data and create VOs from that (in my
Model
class) to use in my app.
Sure. Here is an example of what the parsing might look like inside
your model class. If your XML looked like this:
xml
people
person firstName=Hank lastName=Aaron
phoneNumber=7043237564 indicatorColor=0xe39132 /
person firstName=Fred lastName=Astaire
phoneNumber=9082321214 indicatorColor=0xe73721 /
person firstName=Judy lastName=Garland
phoneNumber=3107382234 indicatorColor=0xd4e355 /
person firstName=Marilyn lastName=Monroe
phoneNumber=3107673721 indicatorColor=0xbab5ab /
/people
/xml
Then inside your model class, you may have some code like this (which of
course would run after the XML is loaded):
public var personVOs:Array = []; //array of PersonVOs
private function createPersonVOs():void
{
for each (var personNodeXML:XML in myXML.people.person)
{
var personVO:PersonVO = new PersonVO();
personVO.firstName = personnodex...@firstname;
personVO.lastName = personnodex...@lastname;
personVO.phoneNumber =
Number(personnodex...@phonenumber);
personVO.indicatorColor =
uint(personnodex...@indicatorcolor);
personVOs.push(personVO);
}
}
So now, you have personVOs as a public property in your model you can
call and get the people information from their VO class. Does that
help?
Jason Merrill
Bank of America Global Learning
Learning Performance Solutions
Join the Bank of America Flash Platform Community and visit our
Instructional Technology Design Blog
(note: these are for Bank of America employees only)
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Cor
Sent: Saturday, April 24, 2010 6:53 AM
To: 'Flash Coders List'
Subject: RE: [Flashcoders] Quick question about dynamic groupings
Hi Jason,
Nice explaination!
Thanks!
Could you extend this with an example on the part of:
I typically do is load in XML data and create VOs from that (in my
Model
class) to use in my app.
Kind regards
Cor van Dooren
The Netherlands
RE: [Flashcoders] Quick question about dynamic groupings
The way of using VOs in MVC is where my lack of knowledge lays
VOs are not specific to the MVC pattern, they are just a good way to
handle related data, period.
Jason Merrill
Bank of America Global Learning
Learning Performance Solutions
Join the Bank of America Flash Platform Community and visit our
Instructional Technology Design Blog
(note: these are for Bank of America employees only)
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Cor
Sent: Thursday, April 29, 2010 10:58 AM
To: 'Flash Coders List'
Subject: RE: [Flashcoders] Quick question about dynamic groupings
The extra effort is no problem.
The way of using VOs in MVC is where my lack of knowledge lays, and I am
trying to learn it...
And you are helping very well on the way.
I just need those little (working) examples to get me on track of fully
understanding.
And sometimes technical stuff is extra difficult because English is not
my native language.
Thanks again, Jason.
And of course all other participants!
Regards
Cor
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Merrill,
Jason
Sent: donderdag 29 april 2010 14:24
To: Flash Coders List
Subject: RE: [Flashcoders] Quick question about dynamic groupings
A generic object has no meaning, you lose typecasting and all the
benefits of using a custom class, like for example, code completion.
Remember anonymous functions in AS1/2 and why they were bad? It's not
quite as bad to use generic objects, but still not good practice IMO.
With VOs, you know what properties it contains, and that's very useful
in situations, like for example, when you attach data to an event and
want to use it on the other end. Believe me, VOs are worth the slight
extra effort they are to create.
Jason Merrill
Bank of America Global Learning
Learning Performance Solutions
Join the Bank of America Flash Platform Community and visit our
Instructional Technology Design Blog
(note: these are for Bank of America employees only)
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Cor
Sent: Monday, April 26, 2010 4:23 PM
To: 'Flash Coders List'
Subject: RE: [Flashcoders] Quick question about dynamic groupings
Hi Jason,
Thank you.
So the personVO.as should look like this:
package
{
class PersonVO
{
public var firstName:String;
public var lastName:String;
public var phoneNumber:Number;
public var indicatorColor:uint;
}
}
Now I think I understand what you are doing, but I lost to see the
benefit of the VO over doing it with a generic Object.
Because it is now in a public array I can address everything.
Like this:
var personVO:PersonVO = new Object();
personVO.firstName = personnodex...@firstname; etc..
Or maybe I don't understand the VO concept???
Regards
Cor
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Merrill,
Jason
Sent: maandag 26 april 2010 15:52
To: Flash Coders List
Subject: RE: [Flashcoders] Quick question about dynamic groupings
Could you extend this with an example on the part of:
I typically do is load in XML data and create VOs from that (in my
Model
class) to use in my app.
Sure. Here is an example of what the parsing might look like inside
your model class. If your XML looked like this:
xml
people
person firstName=Hank lastName=Aaron
phoneNumber=7043237564 indicatorColor=0xe39132 /
person firstName=Fred lastName=Astaire
phoneNumber=9082321214 indicatorColor=0xe73721 /
person firstName=Judy lastName=Garland
phoneNumber=3107382234 indicatorColor=0xd4e355 /
person firstName=Marilyn lastName=Monroe
phoneNumber=3107673721 indicatorColor=0xbab5ab /
/people
/xml
Then inside your model class, you may have some code like this (which of
course would run after the XML is loaded):
public var personVOs:Array = []; //array of PersonVOs
private function createPersonVOs():void
{
for each (var personNodeXML:XML in myXML.people.person)
{
var personVO:PersonVO = new PersonVO();
personVO.firstName = personnodex...@firstname;
personVO.lastName = personnodex...@lastname;
personVO.phoneNumber =
Number(personnodex...@phonenumber);
personVO.indicatorColor =
uint(personnodex...@indicatorcolor);
personVOs.push(personVO);
}
}
So now, you have personVOs as a public property in your model you can
call and get the people information from their VO class. Does that
help?
Jason Merrill
Bank of America Global Learning
Learning Performance Solutions
RE: [Flashcoders] Quick question about dynamic groupings
Could you extend this with an example on the part of:
I typically do is load in XML data and create VOs from that (in my
Model
class) to use in my app.
Sure. Here is an example of what the parsing might look like inside
your model class. If your XML looked like this:
xml
people
person firstName=Hank lastName=Aaron
phoneNumber=7043237564 indicatorColor=0xe39132 /
person firstName=Fred lastName=Astaire
phoneNumber=9082321214 indicatorColor=0xe73721 /
person firstName=Judy lastName=Garland
phoneNumber=3107382234 indicatorColor=0xd4e355 /
person firstName=Marilyn lastName=Monroe
phoneNumber=3107673721 indicatorColor=0xbab5ab /
/people
/xml
Then inside your model class, you may have some code like this (which of
course would run after the XML is loaded):
public var personVOs:Array = []; //array of PersonVOs
private function createPersonVOs():void
{
for each (var personNodeXML:XML in myXML.people.person)
{
var personVO:PersonVO = new PersonVO();
personVO.firstName = personnodex...@firstname;
personVO.lastName = personnodex...@lastname;
personVO.phoneNumber =
Number(personnodex...@phonenumber);
personVO.indicatorColor =
uint(personnodex...@indicatorcolor);
personVOs.push(personVO);
}
}
So now, you have personVOs as a public property in your model you can
call and get the people information from their VO class. Does that
help?
Jason Merrill
Bank of America Global Learning
Learning Performance Solutions
Join the Bank of America Flash Platform Community and visit our
Instructional Technology Design Blog
(note: these are for Bank of America employees only)
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Cor
Sent: Saturday, April 24, 2010 6:53 AM
To: 'Flash Coders List'
Subject: RE: [Flashcoders] Quick question about dynamic groupings
Hi Jason,
Nice explaination!
Thanks!
Could you extend this with an example on the part of:
I typically do is load in XML data and create VOs from that (in my
Model
class) to use in my app.
Kind regards
Cor van Dooren
The Netherlands
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
RE: [Flashcoders] Quick question about dynamic groupings
Hi Jason,
Thank you.
So the personVO.as should look like this:
package
{
class PersonVO
{
public var firstName:String;
public var lastName:String;
public var phoneNumber:Number;
public var indicatorColor:uint;
}
}
Now I think I understand what you are doing, but I lost to see the benefit
of the VO over doing it with a generic Object.
Because it is now in a public array I can address everything.
Like this:
var personVO:PersonVO = new Object();
personVO.firstName = personnodex...@firstname;
etc..
Or maybe I don't understand the VO concept???
Regards
Cor
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Merrill,
Jason
Sent: maandag 26 april 2010 15:52
To: Flash Coders List
Subject: RE: [Flashcoders] Quick question about dynamic groupings
Could you extend this with an example on the part of:
I typically do is load in XML data and create VOs from that (in my
Model
class) to use in my app.
Sure. Here is an example of what the parsing might look like inside
your model class. If your XML looked like this:
xml
people
person firstName=Hank lastName=Aaron
phoneNumber=7043237564 indicatorColor=0xe39132 /
person firstName=Fred lastName=Astaire
phoneNumber=9082321214 indicatorColor=0xe73721 /
person firstName=Judy lastName=Garland
phoneNumber=3107382234 indicatorColor=0xd4e355 /
person firstName=Marilyn lastName=Monroe
phoneNumber=3107673721 indicatorColor=0xbab5ab /
/people
/xml
Then inside your model class, you may have some code like this (which of
course would run after the XML is loaded):
public var personVOs:Array = []; //array of PersonVOs
private function createPersonVOs():void
{
for each (var personNodeXML:XML in myXML.people.person)
{
var personVO:PersonVO = new PersonVO();
personVO.firstName = personnodex...@firstname;
personVO.lastName = personnodex...@lastname;
personVO.phoneNumber =
Number(personnodex...@phonenumber);
personVO.indicatorColor =
uint(personnodex...@indicatorcolor);
personVOs.push(personVO);
}
}
So now, you have personVOs as a public property in your model you can
call and get the people information from their VO class. Does that
help?
Jason Merrill
Bank of America Global Learning
Learning Performance Solutions
Join the Bank of America Flash Platform Community and visit our
Instructional Technology Design Blog
(note: these are for Bank of America employees only)
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Cor
Sent: Saturday, April 24, 2010 6:53 AM
To: 'Flash Coders List'
Subject: RE: [Flashcoders] Quick question about dynamic groupings
Hi Jason,
Nice explaination!
Thanks!
Could you extend this with an example on the part of:
I typically do is load in XML data and create VOs from that (in my
Model
class) to use in my app.
Kind regards
Cor van Dooren
The Netherlands
___
Flashcoders mailing list
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http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Geen virus gevonden in het binnenkomende-bericht.
Gecontroleerd door AVG - www.avg.com
Versie: 9.0.814 / Virusdatabase: 271.1.1/2833 - datum van uitgifte: 04/24/10
20:31:00
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
Re: [Flashcoders] Quick question about dynamic groupings
So the personVO.as should look like this:
package
{
class PersonVO
{
public var firstName:String;
public var lastName:String;
public var phoneNumber:Number;
public var indicatorColor:uint;
}
}
Now I think I understand what you are doing, but I lost to see the benefit
of the VO over doing it with a generic Object.
Well, from the Flex side, the reason you'd use a custom value object
instead of a generic object is for strongly typed values, compile-time
checking, and code-completion in Flash Builder. I imagine some of
those carry over to regular Flash development.
Dave Watts, CTO, Fig Leaf Software
http://www.figleaf.com/
http://training.figleaf.com/
Fig Leaf Software is a Veteran-Owned Small Business (VOSB) on
GSA Schedule, and provides the highest caliber vendor-authorized
instruction at our training centers, online, or onsite.
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RE: [Flashcoders] Quick question about dynamic groupings
Hi Jason,
Nice explaination!
Thanks!
Could you extend this with an example on the part of:
I typically do is load in XML data and create VOs from that (in my Model
class) to use in my app.
Kind regards
Cor van Dooren
The Netherlands
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Merrill,
Jason
Sent: vrijdag 23 april 2010 21:52
To: Flash Coders List
Subject: RE: [Flashcoders] Quick question about dynamic groupings
In my opinion, instead of anonymous objects with values that are not
typecast, it's best to create ValueObjects (VOs, also called Data Transfer
Objects or DTOs) - which are basically simple classes that have no
constructor, no methods at all (maybe a getter or setter if you prefer) -
just a class to store public properties. So for those, I would write a VO
class like this:
package
{
class MyVO
{
public var id:int;
public var name:String;
public var group:Number;
}
}
(you can also set default values this way if you like). If you end up
writing functions in your VO classes, you're doing something wrong and
missing the point of VOs.
Then, all you have to do is create them:
var myVO:MyVO = new MyVO();
myVO.id = 4;
myVO.name = foo;
myVOP.group = 7;
Throw those into an array and you're set. You can pass VOs through events,
manage them in the model, have your other classes accept VOs, whatever. It's
what Cairngorm and other design patterns use to move groups of related data
around inside an application. This also allows for code completion on your
VO in apps like Flexbuilder and FlashDevelop. What I typically do is load in
XML data and create VOs from that (in my Model class) to use in my app. I
wouldn't recommend using XML calls throughout your app, because then your
app relies on XML and it's structure. With VOs, the data source can change
(say you switch from XML to a Webservice) and your app doesn't break. All
you have to do is change the parsing of the data into VOs in your model.
Jason Merrill
Bank of America Global Learning
Learning Performance Solutions
Join the Bank of America Flash Platform Community and visit our
Instructional Technology Design Blog
(note: these are for Bank of America employees only)
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Eric E.
Dolecki
Sent: Friday, April 23, 2010 3:22 PM
To: Flash Coders List
Subject: [Flashcoders] Quick question about dynamic groupings
Hey all,
I am beginning the authoring a class to manage objects dynamically. The main
functionality is to group/ungroup the objects. I was thinking of starting
out by having each object be it's own group.
[{id:1, name:foo, group:1}, {id:2, name:bar, group:2}, {id:3,
name:mustaine, group:3}];
And then be able to move them in and out of group objects in the class be
able to report them back to another class, etc.
Is this the best way to handle it - would internal XML be better, or is an
array of objects that gets manipulated around a better solution?
Eric
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Re: [Flashcoders] Quick question about dynamic groupings
Interesting take - thank you for your feedback. I don't think I would have considered something like that. I think FB4 will like this approach as well. Yes, FB4 will definitely like this approach. In fact, if you're using ColdFusion as the back end, you can use the wizards in FB4 and CFB (which is bundled with FB4) to generate both the server-side (CF) and client-side (AS3) value object representations by just right-clicking on the database table you want to represent. In addition to the value objects, you'll also get a gateway object in charge of translating the value objects to database rows and vice-versa. Then, using the Data/Services tab, you can generate the service calls to fetch the value objects and you can generate bindings between the value objects and the UI components you use to display them. Dave Watts, CTO, Fig Leaf Software http://www.figleaf.com/ http://training.figleaf.com/ Fig Leaf Software is a Veteran-Owned Small Business (VOSB) on GSA Schedule, and provides the highest caliber vendor-authorized instruction at our training centers, online, or onsite. ___ Flashcoders mailing list Flashcoders@chattyfig.figleaf.com http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
RE: [Flashcoders] Quick question about dynamic groupings
In my opinion, instead of anonymous objects with values that are not typecast,
it's best to create ValueObjects (VOs, also called Data Transfer Objects or
DTOs) - which are basically simple classes that have no constructor, no methods
at all (maybe a getter or setter if you prefer) - just a class to store public
properties. So for those, I would write a VO class like this:
package
{
class MyVO
{
public var id:int;
public var name:String;
public var group:Number;
}
}
(you can also set default values this way if you like). If you end up writing
functions in your VO classes, you're doing something wrong and missing the
point of VOs.
Then, all you have to do is create them:
var myVO:MyVO = new MyVO();
myVO.id = 4;
myVO.name = foo;
myVOP.group = 7;
Throw those into an array and you're set. You can pass VOs through events,
manage them in the model, have your other classes accept VOs, whatever. It's
what Cairngorm and other design patterns use to move groups of related data
around inside an application. This also allows for code completion on your VO
in apps like Flexbuilder and FlashDevelop. What I typically do is load in XML
data and create VOs from that (in my Model class) to use in my app. I wouldn't
recommend using XML calls throughout your app, because then your app relies on
XML and it's structure. With VOs, the data source can change (say you switch
from XML to a Webservice) and your app doesn't break. All you have to do is
change the parsing of the data into VOs in your model.
Jason Merrill
Bank of America Global Learning
Learning Performance Solutions
Join the Bank of America Flash Platform Community and visit our Instructional
Technology Design Blog
(note: these are for Bank of America employees only)
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com
[mailto:flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Eric E. Dolecki
Sent: Friday, April 23, 2010 3:22 PM
To: Flash Coders List
Subject: [Flashcoders] Quick question about dynamic groupings
Hey all,
I am beginning the authoring a class to manage objects dynamically. The main
functionality is to group/ungroup the objects. I was thinking of starting out
by having each object be it's own group.
[{id:1, name:foo, group:1}, {id:2, name:bar, group:2}, {id:3,
name:mustaine, group:3}];
And then be able to move them in and out of group objects in the class be
able to report them back to another class, etc.
Is this the best way to handle it - would internal XML be better, or is an
array of objects that gets manipulated around a better solution?
Eric
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
___
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Re: [Flashcoders] Quick question about dynamic groupings
Interesting take - thank you for your feedback. I don't think I would have
considered something like that. I think FB4 will like this approach as well.
Eric
On Fri, Apr 23, 2010 at 3:52 PM, Merrill, Jason
jason.merr...@bankofamerica.com wrote:
In my opinion, instead of anonymous objects with values that are not
typecast, it's best to create ValueObjects (VOs, also called Data Transfer
Objects or DTOs) - which are basically simple classes that have no
constructor, no methods at all (maybe a getter or setter if you prefer) -
just a class to store public properties. So for those, I would write a VO
class like this:
package
{
class MyVO
{
public var id:int;
public var name:String;
public var group:Number;
}
}
(you can also set default values this way if you like). If you end up
writing functions in your VO classes, you're doing something wrong and
missing the point of VOs.
Then, all you have to do is create them:
var myVO:MyVO = new MyVO();
myVO.id = 4;
myVO.name = foo;
myVOP.group = 7;
Throw those into an array and you're set. You can pass VOs through events,
manage them in the model, have your other classes accept VOs, whatever. It's
what Cairngorm and other design patterns use to move groups of related data
around inside an application. This also allows for code completion on your
VO in apps like Flexbuilder and FlashDevelop. What I typically do is load in
XML data and create VOs from that (in my Model class) to use in my app. I
wouldn't recommend using XML calls throughout your app, because then your
app relies on XML and it's structure. With VOs, the data source can change
(say you switch from XML to a Webservice) and your app doesn't break. All
you have to do is change the parsing of the data into VOs in your model.
Jason Merrill
Bank of America Global Learning
Learning Performance Solutions
Join the Bank of America Flash Platform Community and visit our
Instructional Technology Design Blog
(note: these are for Bank of America employees only)
-Original Message-
From: flashcoders-boun...@chattyfig.figleaf.com [mailto:
flashcoders-boun...@chattyfig.figleaf.com] On Behalf Of Eric E. Dolecki
Sent: Friday, April 23, 2010 3:22 PM
To: Flash Coders List
Subject: [Flashcoders] Quick question about dynamic groupings
Hey all,
I am beginning the authoring a class to manage objects dynamically. The
main functionality is to group/ungroup the objects. I was thinking of
starting out by having each object be it's own group.
[{id:1, name:foo, group:1}, {id:2, name:bar, group:2}, {id:3,
name:mustaine, group:3}];
And then be able to move them in and out of group objects in the class be
able to report them back to another class, etc.
Is this the best way to handle it - would internal XML be better, or is an
array of objects that gets manipulated around a better solution?
Eric
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--
http://ericd.net
Interactive design and development
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