Github user ajs6f commented on a diff in the pull request:
https://github.com/apache/jena/pull/90#discussion_r35807971
--- Diff: jena-base/src/main/java/org/apache/jena/atlas/iterator/Iter.java
---
@@ -29,6 +29,14 @@
import org.apache.jena.atlas.lib.Closeable ;
import org.apache.jena.atlas.lib.Sink ;
+/**
+ * Iter provides utilities for working with {@link Iterator}s.
+ *
+ * Iter should never be used as a return type or parameter type in the
public contract of a class. It is only to be used
+ * inside implementation code and is instantiated only to allow
method-chaining as part of a calculation.
--- End diff --
Yes, that's why the note is useful. If `Iter` actually imposed that in the
code there would be no need for documentation.
Is there in fact any difference between `Iter` and `ExtendedIterator`? They
are both subtypes of `java.util.Iterator` that provide convenient methods, with
the functionality of `Iter` entirely overlapping that of `ExtendedIterator`.
I've tried repeatedly to discover this information, and my experience shows
that it is quite possible to confuse them. You were quite explicit in
explaining to me in connection with JENA-966 that they are not to be used in
the same circumstances, and all I'm trying to do here is determine what those
circumstances actually are and record them.
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