Although HitsIterator doesn't implement Iterator, it follows the Iterator idiom so this is just a simple adapter

(really more of a wrapper) which does implement Iterator.

Useful when you want to pass the HitsIterator object into Velocity as a collection
and you want to be able to do something like
#foreach($hit in $hitIterator)
  ##display stuff
#end


git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@150809 13f79535-47bb-0310-9956-ffa450edef68

sandbox/contributions/searchbean/src/java/org/apache/lucene/beans/IteratorAdapter.java

@@ -0,0 +1,42 @@
+package org.apache.lucene.beans;
+
+import java.util.Iterator;
+
+/**
+ * Acts as an adapter for HitsIterator to comply with the Collections
+ * API.
+ *
+ * @author <a href="mailto:kelvint@apache.org">Kelvin Tan</a>
+ * @version $Id$
+ */
+public final class IteratorAdapter implements Iterator
+{
+    private HitsIterator hitsIterator;
+
+    public IteratorAdapter(HitsIterator it)
+    {
+        this.hitsIterator = it;
+    }
+
+    public boolean hasNext()
+    {
+        return hitsIterator.hasNext();
+    }
+
+    public Object next()
+    {
+        return hitsIterator.next();
+    }
+
+    public void remove()
+    {
+        throw new UnsupportedOperationException(
+                "HitsIterator does not " +
+                "support modification of the hits!");
+    }
+
+    public HitsIterator getHitsIterator()
+    {
+        return hitsIterator;
+    }
+}