Nice to @Share?

[Mark Mahieu]

On 22 Feb 2010, at 21:37, Joshua Bloch wrote:

> This requires programmers to use
> the well-known single-element array (or wrapper object) idiom in the rare
> case where they really do want to close over a mutable local variable.

That's an interesting point actually - how rare is it?  My gut feeling is that it's rather less rare than some of the other things we've discussed, but it might be useful to find out.

Whilst producing the statistics which Alex requested a couple of weeks ago, I noticed a few classes which might have been good candidates for lambdas but for the fact that they contained an additional field updated by the 'primary' method, along with a getter method to retrieve its value.

Mark