# Code Notes

    (A)cachePolicyObj is an instantiated object based upon the cache policy
       descriptor file.
    (B)cachePolicyObj.getCache(-)will always return null, if ignore cache is
       set to true.
    (C)cachePolicyObj.isRecent(cacheBlockId) will return false, if the block
       is null OR the cache block is not recent enough according to
       reusableTimeStamp and reusableDeltaTime, where reusableTimeStamp take
       precedence.
    (D)pageContext.pushBody() would create a new buffered print writer to replace
       the original "out" print writer. pageContext.popBody() will restore the
       "out" print writer object. Apart from caching character based data,  we
        could cache byte based data.
    (E)You should perform putCache operation only when the cache block is not
       found, not just because of the cache is not recent enough.
    (F)cachePolicyObj.putCache(-) will not perform any operation, if ignore
       cache is set to true.