Stateful iterator Java

What is a stateful iterator?

This problem is related to the iterator defined in Hadoop to execute the connection As described in the reference documentation:

What does' replay element added directly to it 'mean? How is this iterator different from the usual iterator?

Solution

Here is more information about stateful iterators:

http://en.wikipedia.org/wiki/Iterator (view generator)

And some further information:

http://www.itmaybeahack.com/book/python-2.6/html/p02/p02c08_generators.html

Finally, here:

http://www.devdaily.com/java/jwarehouse/trove-1.1b3/src/gnu/trove/TIntIntIterator.java.shtml

I hope this will help