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https://issues.apache.org/jira/browse/DIRMINA-489?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12567686#action_12567686
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Johannes Ulfkjær Jensen commented on DIRMINA-489:
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In addition to the mentioned benefits, this could also serve as the way to 
introduce gathering write to the framework by adding IoBuffer.isComposite(), 
IoBuffer.getComposites(), in the same style of having backing arrays. That 
being unless I missed something, which could happen as I do not know the 
framework that well.

This same class could also be used to implement scatter read, but as far as I 
can see, that would mean every instance of IoAcceptor (or SessionConfig?) would 
need a specific IoBufferAllocator.

> Composite IoBuffer
> ------------------
>
>                 Key: DIRMINA-489
>                 URL: https://issues.apache.org/jira/browse/DIRMINA-489
>             Project: MINA
>          Issue Type: New Feature
>          Components: Core
>            Reporter: David M. Lloyd
>             Fix For: 2.0.0-M2
>
>
> Provide a way to create a large IoBuffer from several smaller IoBuffers, 
> without copying the underlying data.
> It would probably be acceptable to constrain the composite buffer in various 
> ways, for example by disallowing autoexpanding or otherwise changing the 
> capacity, the implementation could be greatly simplified.
> The goal is to be able to process large messages with a minimum of copying.

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