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From "Josh Tynjala (Commented) (JIRA)" <>
Subject [jira] [Commented] (FLEX-36) Add Vector implementations of IList and ICollectionView
Date Mon, 02 Apr 2012 20:31:23 GMT


Josh Tynjala commented on FLEX-36:

I guess using the top-level Array function to do the conversion to simply use an ArrayList
or ArrayCollection is the obvious easy thing to do:

var myArray:Array = Array(myVector);

But it always feels weird not to have dedicated collections for Vectors. I realize that we
can't type custom classes like collections, so we lose the advantage of vectors, but I always
twitch a little when I need to first convert to an Array and then wrap in the collection.
I'd be happy to do a code review.
> Add Vector implementations of IList and ICollectionView
> -------------------------------------------------------
>                 Key: FLEX-36
>                 URL:
>             Project: Apache Flex
>          Issue Type: Improvement
>            Reporter: Josh Tynjala
>            Assignee: Bertrand Delacretaz
>            Priority: Minor
>              Labels: List, collections
> VectorList and VectorCollection, similar to ArrayList and ArrayCollection. Feels weird
that I need to convert Vectors to Arrays to use in Flex collections.
> In case anyone is unaware, you can cast Vector.<WhateverTypeYouWant> as Vector.<*>.
Works with the "as" and "is" keywords, as you can see below:
> var strings:Vector.<String> = new <String>["One", "Two", "Three"];
> trace(strings is Vector.<*>); //true
> var generic:Vector.<*> = strings as Vector.<*>;
> trace(strings) //One, Two, Three

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