--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/contrib/attribute-iterator.h	Tue May 13 17:02:52 2008 -0700
@@ -0,0 +1,49 @@
+#ifndef ATTRIBUTE_ITERATOR_H
+#define ATTRIBUTE_ITERATOR_H
+
+#include "ns3/ptr.h"
+#include "ns3/object.h"
+#include <vector>
+
+namespace ns3 {
+
+class AttributeIterator
+{
+public:
+  AttributeIterator ();
+  virtual ~AttributeIterator ();
+
+  void Iterate (void);
+private:
+  virtual void DoVisit (Ptr<Object> object, std::string name, std::string path) = 0;
+  virtual void DoPush (std::string name, std::string path) = 0;
+  virtual void DoPop (void) = 0;
+
+  void DoIterate (Ptr<Object> object);
+  bool IsExamined (Ptr<const Object> object);
+  std::string GetCurrentPath (std::string attr) const;
+  void Push (std::string name);
+  void Pop (void);
+  void Visit (Ptr<Object> object, std::string name);
+
+
+  std::vector<Ptr<Object> > m_examined;
+  std::vector<std::string> m_currentPath;
+};
+
+class TextFileAttributeIterator : public AttributeIterator
+{
+public:
+  TextFileAttributeIterator (std::ostream &os);
+  void Save (void);
+private:
+  virtual void DoVisit (Ptr<Object> object, std::string name, std::string path);
+  virtual void DoPush (std::string name, std::string path);
+  virtual void DoPop (void);
+  std::ostream &m_os;
+};
+
+
+} // namespace ns3
+
+#endif /* ATTRIBUTE_ITERATOR_H */