ActionScript 3.0 :: Searching Through Array Of Complex Data Object On Specified Properties?

Is there any 3rd-party library on AS3.0( like STL in C++) around, can do this:I define my class and use its objects as associative array, for example:

class Company{
var public name;
var public logo;
var public address;
var public telnumber;
}

And use a kind of data structure class(say, List) to store a few Company-type objects. And then, I define my own comparing and searching function on that List class(namely, override the default one); within my functions I could specify on which attribute(name, or address, or telephone number) to perform searching, and how it would be performed.