Hello ,everyone :
           I am a student .My name is Li Zhiguo. Now I am studing about Jena 
ARQ. Now I have two questions.
           Question one:   As you know ,there are two reorder functions in ARQ 
,one is default function ReorderFixed ,and another is ReorderWeighted. What's 
the differences bettween                                           them? 


           Question two:  Once I read a document , it says " The ResultSet 
class is a container to a Filter chain ". What's is a " Filter chain"  on 
earth?  or  How does  the "Filter chain"  works ?


           
           Thanks to everyone for your help !

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