spinner component

[Tom Eugelink]

>
> In essence, this approach is a one-method Callback<Integer, T> 'data provider', where the method is 'public T call(Integer index)'. It is a simpler data provider than what you mention. I guess my question is whether the additional API is required? Also, in my opinion, I think Integer, rather than BigInteger, is likely sufficient - but this isn't a major issue for me right now.


I understand and am curious if it matches all that I needed. Basically what you see in my DataProvider API is what I needed while implementing the spinner:
- is there a next value? (I generalized that to "give me the idx of the next value", which allows for some additional dynamics.)
- is there a previous value? (dito)
- what is the value for idx X?
- what is the idx of value X?

Now, thinking about, this multiple times the same value in the domain may be an issue for the last one.

Tom