Prevayled flyweight strings

In my application there is a lot RAM to be saved by flyweighting  
Strings -- I have lots and lots of reoccuring address components. I do  
however belive that String.intern is not applicable as it will loose  
the state when restarting and I would thus have to add my own  
flyweight to the Root.

Is there any specific solution you would recommend? I was simply  
thinking a Map<String, String> where key and value is the same  
instance. I think the GOF-bible speak of another solution but I can't  
seem to find it in my library. They probably over complicated things.

But this should be a rather common use case of Prevayler, right?

One alternative to the Map I can think of is to programmatically  
iterate all my flyweighted values on initialization of the system,  
calling String.intern. Not sure if I can trust all JVMs to act the  
same way though -- ie using the first interned value as the  
flyweighted value. Nor am I sure it would save RAM. It would however  
make it slower to start up the system.

Any thoughts most welcome. For now I'm going with the Map.



	karl




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