The FSF's Executive Director, Brad Kuhn adds "LGPL's S. 6 allows you to make new works that link with the LGPL'ed code, and license them any way you see fit. Only the LGPL'ed code itself must remain Free. Such 'client code' can even be proprietary; it need not be LGPL'ed."

To clarify the Mango position - I licensed it under the LGPL because I want the library to remain free while allowing people to do whatever the hell they want with it. Basically, what I want to maintain is that Mango code stays in the Mango jar file, and isn't bundled into some other jar instead. So go ahead, use the code in whatever application you like, under whatever license you like.
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Monday 31 March, 2003
#Just realised the example below is tripe. The main point still stands though :)
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Friday 28 March, 2003
#Added transform to the algorithms page.
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#Heh. Months of nothing, I cut a release in the middle of the night, then immediatately add new code. What I am doing? Anyway, CVS (mail me for access) now contains a

public static java.util.Iterator TransformIterator(java.util.Iterator iterator, UnaryFunction transform)

A TransformIterator applies a UnaryFunction to each element in the sequence, returning the function result at each step.

Say you have a list of some complex type, and you want to find on by name. You could (caution! trivial example follows)

  Iterator i = list.iterator();
  while(i.hasNext()) {
    MyComplexObject mco = (MyComplexObject)i.next();
    if(mco.GetName().equals(theSearchName)) 
      .. do something
    }
  // did I find it or not? 
  // might have to check a state variable here to work it out 
  // anyway - do whatever the right thing is here

  MyComplexObject mco = (MyComplexObject)Mango.find(
                 Mango.TransformIterator(list.iterator(), 
                                         Adapt.ArgumentMethod("GetName"),
                 theSearchName);
  if(mco != null) 
     ... found!
  else 
     ... not