?
Solved

copying properties of an instance of a class

Posted on 2011-03-22
4
Medium Priority
?
318 Views
Last Modified: 2012-05-11
Hi , I wonder if someone could help please, Im learning slowly but am still very green

I am iterating through an array which contains instances of various Classes that each extend from a custom class  PageItemClass.

I need to have a  function that when a certain condition is met, (the "if (headerContent[0][0].... " line)

1) the type of class that is the current item is established
2) a new instance of the class in question is created
3) the values of the properties of the initial instance are copied to the new instance.

I think I have managed the first two (lines 7 and 8 , but the third is stumping me, I have tried ObjectUtil.Copy(item) which indeed works but returns me an object, how do I get a copy which both has the same property values and is of the same ClassType,
 i have also tried the clone method of ObjectUtil, but that just complains about not having a uid.
thanks in advance

John
if (pageData.headerTypeData){
   for (var i:int=0; i< pageItems.length; i++){
     for (var j:int =0; j<pageItems[i].length; j++ ){
         var item:PageItemData=pageItems[i][j];
						
	if (headerContent[0][0]!="" && headerContent[0][0]==item.type){
	var classType:Class =getClass(item);
	var newItem=new classType;
						
	}	
    }
}
private static function getClass(obj:Object):Class {
	return Class(getDefinitionByName(getQualifiedClassName(obj)))
	}

Open in new window

0
Comment
Question by:BloodGrinder
  • 3
4 Comments
 
LVL 29

Expert Comment

by:dgofman
ID: 35192966
Try bytes clone

            var buffer:ByteArray = new ByteArray();
            buffer.writeObject(source);
            buffer.position = 0;
            return buffer.readObject();
0
 
LVL 29

Expert Comment

by:dgofman
ID: 35193007
For example:

public static function clone(source:*):Object{
            var buffer:ByteArray = new ByteArray();
            buffer.writeObject(source);
            buffer.position = 0;
            return buffer.readObject();
}

var clone:Object = clone(item);
var classType:Class = getClass(item);
var o:PublisherAccount = new classType();
      for(var name:String in clone){
            var value:Object = clone[name];
            o[name] = value;
      }
}
0
 
LVL 29

Accepted Solution

by:
dgofman earned 2000 total points
ID: 35193093
Sorry you need to use the diffrent names:

var cloneItem:Object = clone(item);
var classType:Class = Class(getDefinitionByName(getQualifiedClassName(item)))
var newItem:* = new classType();
for(var name:String in cloneItem){
    var value:Object = cloneItem[name];
    newItem[name] = value;
}
0
 

Author Closing Comment

by:BloodGrinder
ID: 35194093
Thank you
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Recently, I was asked to recommend a tracking system to be implemented on a clients website. As the entire site was built on flash, my first thought was to suggest custom built tracking system. However, our company at that point of time didn't h…
This article describes a solution to a problem of subloading one movie into another when they have different SWF versions. Sometime back, I was working on an ActionScript project while I came across an interesting fact which I would like to share…
In this tutorial viewers will learn how to create a basic motion tween animation in Flash Open a new document in Flash: Draw/import an image: Press CTRL + F8 to convert it into a graphic symbol: Select a frame (how long you want the tween to last): …
The goal of the tutorial is to teach the user how to select the video input device. Make sure you have an input device that in connected and work and recognized by Adobe Flash Media Live Encoder and select it in the “video input” menu.
Suggested Courses
Course of the Month14 days, 23 hours left to enroll

840 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question