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From "Trustin Lee (JIRA)" <>
Subject [jira] Closed: (DIRMINA-137) 'Chain of Responsibility' pattern support for IoHandler
Date Tue, 06 Dec 2005 03:42:11 GMT
     [ ]
Trustin Lee closed DIRMINA-137:

    Resolution: Fixed

> 'Chain of Responsibility' pattern support for IoHandler
> -------------------------------------------------------
>          Key: DIRMINA-137
>          URL:
>      Project: Directory MINA
>         Type: New Feature
>     Reporter: Trustin Lee
>     Assignee: 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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