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I just wrote clone methods. I need a true
copy, so ensured each was made correctly. Easy for the simple ones (like
Flex 2 events), harder for ones with arrays full of objects. I haven't
figured out inheritanced yet, but since these VO's are strictly for the server
guy and I to effectively communicate, they work well enough. Inheritance
is for another day...
class VO
{
public var
id:String;
public var
name:String;
public function
clone():VO
{
var vo:VO = new
VO();
vo.id =
id;
vo.name =
name;
return
vo;
}
}
One for arrays:
class Item
{
public var
id:String;
public var
itemLabel:String;
public function
clone():Item
{
var
i:Item = new Item();
item.id =
id;
item.itemLabel = itemLabel;
return
item;
}
}
class MajorVO
{
public var
otherLabel:String;
public var
item_array:Array;
public function
clone():MajorVO
{
var
mvo:MajorVO = new MajorVO();
mvo.otherLabel = otherLabel;
var i:Number
= item_array.length;
mvo.item_array = [];
while(i--)
{
var old:Item = Item(item_array[i]);
var
ni:Item = old.clone();
mvo.item_array[i] = ni;
}
return
mvo;
}
}
----- Original Message -----
Sent: Thursday, December 01, 2005 9:51 AM
Subject: Re: [flexcoders] instanceof on Object
hey Jess... interested to know about the solution you went
with on this...
On 11/30/05, Paul
Frantz <[EMAIL PROTECTED]>
wrote:
works ok.
eg..
class Fred {
public function Fred() {}
}
App.mxml
<mx:Application xmlns:mx="http://www.macromedia.com/2003/mxml
"
xmlns="*"
initialize="myInitialize()"
>
<mx:Script>
<![CDATA[
import
Fred;
var
f:Fred;
function myInitialize():Void
{
f = new
Fred();
var g =
Object(f);
var
_t;
_t = new
g.__constructor__();
trace("_t
instanceof Fred = " + (_t instanceof Fred));
}
]]>
</mx:Script>
</mx:Application>
... produces 'true' for
me.
Cheers,
Paul.
mx.utils.ObjectCopy does not do deep copies,
nor work right:
She's got array's in her too, so that
definately rules in it, and I need prototype integrity (subclass vs.
superclass).
----- Original Message -----
Sent: Wednesday, November 30, 2005 2:09 PM
Subject: Re: [flexcoders] instanceof on Object
On 11/30/05, JesterXL <[EMAIL PROTECTED] > wrote:
...I
guess I'll have to implement a clone method on all of my
VO's. Any
other solution/hack?
----- Original Message
-----
From: "JesterXL" <[EMAIL PROTECTED]>
To: "Flexcoders" <
[email protected]>
Sent: Wednesday, November 30, 2005
1:40 PM
Subject: [flexcoders] instanceof on Object
I have
some VO's, and I use their class type to render a form. My
Dialogue
I'm passing this VO into is bound to an object, like so:
private var formData:Object;
<mx:TextInput
text="{formData.label}" />
When I call this method
externally:
myDialogue.setFormData(someVO);
Function looks
something like this:
function setFormData(o)
{
for(var p in o)
{
formData[p] = o[p];
}
}
My bindings work
great. However, instanceof does not. If I do
this:
formData = o;
It DOES work; naturally because it's
just a reference. However, this
dialogue works like a
preferences. As such, I need to create my own local
copy;
the above for loop is actually more involved since I need a deep
copy,
and thus get a true, deep copy, not a reference.
However,
this in turn breaks my instanceof code. I've tried:
formData.__proto__ = o.prototype
formData.__proto__ =
o.__proto__
...none of which work. Frankly, I really
don't care formData is truly a
sub-class, I just want my instanceof to
work, even if it's taked.
???
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