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PageCache.get(javax.servlet.http.HttpServletRequest request,
 String sCacheKeyModifier)
 
Get the contents generating the key on the fly from the request and the extra modifiers 
 PageCache.put(javax.servlet.http.HttpServletRequest request,
 String sCacheKeyModifier,
 byte[] vbContent,
 long lLifetime,
 String sContentType)
 
Cache some arbitrary contents 
 
 
Get the entrire contents of the cache. 
 
 
protected void
 
Cleanup thread, takes an entry that has expired, removes it from the cache and checks if it deserves a bonus. 
 int
 
For sorting first by the number of accesses then by the key, then by expiration time