public ParameterMapEntry(int theIndex) 
{
            myIndex = theIndex;
}

 public boolean equals(Object o) 
{
            return (o != null &&
                    o instanceof Map.Entry &&
                    getKey().equals (((Map.Entry) o).getKey()) &&
                    getValue().equals(((Map.Entry) o).getValue()));
}

 public Object getKey() 
{
            return myPieces[myIndex];
}

 public Object getValue() 
{
            return myPieces[myIndex+1];
}

 public int hashCode() 
{
            return getKey().hashCode() ^ getValue().hashCode();
}

 public Object setValue(Object value) 
{
            throw new UnsupportedOperationException();
}