Hello list,
Lets say I have a class with a public getter to a private var which
holds an Array.
Some other class can do this then:
var tArr:Array = class.myArray;
I can then do this:
tArr.push(int) and the content of the array has changed without the
class knowing. This is in most cases I use it ok, but now I am wondering
how to deal with it when I really want to create a read only array.
I am aware that I can copy it, but then this can be very expensive when
it is requested a lot of times and it is a relative big array.
So i was thinking the following.
class A{
private var pArray:Array = [1,2,3]
public function get list():listArray{
return new listArray(pArray);
}
}
class listArray{
private var pList:Array
public function listArray(tArr:Array):void{
pList = listArray
}
override function push():void{
throw new IllegalOperationError()
}
}
I would have to override all the public methods of Array which can be a
pain.
My question is.
How would I prevent users from doing this:
listArray[n] = 'whatever'
Much appreciated
Jiri
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