Yield Return In Java

Question

I\'ve created a linked list in java using generics, and now I want to be able to iterate over all the elements in the list. In C# I would use yield return insid

Answer 1

Just to help readers understand the small details.

If you create a new list containing all the resulting elements and return the list, then this is a good implementation, simple enough to code. You can have as interesting data structure as you need, and when scanning it for the right entries, just return a list of all the matches, and your client will iterate on the list.

If you want to save a state, it may be more complicated. You'll need to get to where you've been every time your function is called. Not to mention re-entrant issues, etc.

The solution with threads does not create a new list. And it is as simple as the first solution. The only issue is that you involve a thread synchronization which is a bit more hard to code, and has its performance penalties.

So, yes, yield return is great and is missing from Java. Yet there are workarounds.