Actionscript doesn't implement an equivalent to java's .hashCode() and .equals() pattern; whether or not that's a good thing is an exercise best left to the reader - and a source of a few heated discussions around these parts, too ;-)
I've written a little utility class you can use if you need a quick way to test for equality for the purposes of comboboxes or lists: http://flex.joshmcdonald.info/2008/10/selecting-right-value-from-combobox-or.html -Josh On Tue, Nov 25, 2008 at 7:31 AM, erdal <[EMAIL PROTECTED]> wrote: > I think I am misinterpreting the uid property usage > http://livedocs.adobe.com/flex/3/html/help.html?content=about_dataproviders_8.html > > In a BlazeDS application I am using an ArrayCollection of items (VOs) > returned from the server. I thought when I implement the iuid interface, > that will guide flex framework for deciding on objects equality and then I > can use the getItemIndex(Obj) kind of functions. But It didn't work. So I > wrote this simple test. > > I was expecting to see person1 and clone1 would pass equality test. But > they didn't. What am I missing ? I am actually looking for something I can > use like Java equals. > > -- File Person.as > ----------------------------------------------------------------------------------------- > > package > { > import mx.core.IUID; > public class Person implements IUID { > public var _uid:String; > > public function get uid(): String { > return _uid; > } > > public function Person() { > } > > public function set uid(value: String): void { > _uid=value; > } > } > } > > -- File test.mxml -------------------------------------------- > > <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"; > layout="vertical"> > <mx:Script> > <![CDATA[ > public function onClick():void > { > var person1:Person = new Person(); > var person2:Person = new Person(); > var clone1:Person = new Person(); > person1.uid = "1"; > person2.uid = "2"; > clone1.uid = "1"; > trace("UIDs are person1:"+person1.uid+" person2:"+person2.uid+" > clone1:"+clone1.uid); > trace("Is person1 and person2 equal ? " + (person1 == person2)); > trace("Is person1 and twin1 equal ? " + (person1 == clone1)); > } > > ]]> > </mx:Script> > <mx:Button label="run equality test" click="onClick()" /> > </mx:Application> > > > > -- "Therefore, send not to know For whom the bell tolls. It tolls for thee." Like the cut of my jib? Check out my Flex blog! :: Josh 'G-Funk' McDonald :: 0437 221 380 :: [EMAIL PROTECTED] :: http://flex.joshmcdonald.info/ :: http://twitter.com/sophistifunk
