'Chain of Responsibility' pattern support for IoHandler
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         Key: DIRMINA-137
         URL: http://issues.apache.org/jira/browse/DIRMINA-137
     Project: Directory MINA
        Type: New Feature
    Reporter: Trustin Lee
 Assigned to: Trustin Lee 
     Fix For: 0.9


Some protocols such as Kerberos have a complex layered mechanism.  Implementing 
this kind of protocol in one IoHandler is not really easy.  It usually uses the 
well-known 'Chain or Responsibility' pattern to implement the whole protocol.  
IoFilter already provides CoR, but It is not really a good idea to implement a 
protocol logic as an IoFilter.  We'll implement an IoHandler called 
'ChainedIoFilter' and provide associated interfaces such as IoHandlerCommand 
and IoHandlerChain to support CoR pattern for protocol implementors.


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