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[to authors]memento pattern

 
Greenhorn
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I have seen people implementing memento as a inner class and also as top level class. What advantage do we have in this pattern if we implement it as a inner class rather than top level class. How did you implement this pattern in your book?
 
Ranch Hand
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May be this artical could give you a idea:
http://www.javaworld.com/javaworld/jw-03-2000/jw-0331-ssj-forms_p.html
 
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