Converting Enumeration to Iterator?
List. FromIterator expects a scala. Iterator but your implicit is returning a java.util.
Iterator This works import java.util. Enumeration implicit def enum2IteratorA(e : EnumerationA) = new IteratorA { def next = e. NextElement def hasNext = e.
HasMoreElements } import java.util.zip. {ZipFile, ZipEntry} val l = List. FromIterator(new ZipFile(null:java.io.
File). Entries) Adding one import at the top prevents compilation import java.util. Iterator There's been some discussion about unifying Scala and Java in 2.8 by just using java.util.Iterator.
On the downside, Java's Iterator has a remove method which makes no sense for Scala's immutable collections. UnsupportedOperationException? Blech!
On the plus side that makes stuff like this error go away Edit: I've added a Trac issue that the error message would have been clearer had it said "required: scala. Iterator? " https://lampsvn.epfl.Ch/trac/scala/ticket/2102.
List. FromIterator expects a scala. Iterator but your implicit is returning a java.util.Iterator.
This works import java.util. Enumeration implicit def enum2IteratorA(e : EnumerationA) = new IteratorA { def next = e. NextElement def hasNext = e.
HasMoreElements } import java.util.zip. {ZipFile, ZipEntry} val l = List. FromIterator(new ZipFile(null:java.io.
File). Entries) Adding one import at the top prevents compilation import java.util. Iterator There's been some discussion about unifying Scala and Java in 2.8 by just using java.util.Iterator.
On the downside, Java's Iterator has a remove method which makes no sense for Scala's immutable collections. UnsupportedOperationException? Blech!
On the plus side that makes stuff like this error go away. Edit: I've added a Trac issue that the error message would have been clearer had it said "required: scala. Iterator?" https://lampsvn.epfl.
Ch/trac/scala/ticket/2102.
Ah a newbie mistake ;-) thanks. – Peter Kofler Jun 30 '09 at 7:46.
As far as I know, Enumeration in Scala 2.7. X has an "elements" method and Scala 2.8.0 has an "iterator" method returing an Iterator. Why not use them? Oh, never mind, never mind.
Java's enumeration.
FromIterator expects a scala. Iterator but your implicit is returning a java.util.Iterator. There's been some discussion about unifying Scala and Java in 2.8 by just using java.util.Iterator.
On the downside, Java's Iterator has a remove method which makes no sense for Scala's immutable collections. On the plus side that makes stuff like this error go away. Edit: I've added a Trac issue that the error message would have been clearer had it said "required: scala.
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