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https://issues.apache.org/jira/browse/DIRMINA-507?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Emmanuel Lecharny updated DIRMINA-507:
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Fix Version/s: (was: 2.0.6)
2.0.8
> IoBuffer: Support prepending data
> ---------------------------------
>
> Key: DIRMINA-507
> URL: https://issues.apache.org/jira/browse/DIRMINA-507
> Project: MINA
> Issue Type: New Feature
> Components: Core
> Reporter: David M. Lloyd
> Priority: Minor
> Fix For: 2.0.8
>
>
> I'd like to see IoBuffer enhanced to support prepending data. It could work
> as follows:
> * A means to specificy or reserve space should be provided. An
> IoBuffer.reserve() method could do the trick, and maybe a 3-parameter version
> of IoBuffer. IoBuffer.reserve() would keep the position at zero, but
> decrease the capacity and limit by the given number of bytes, and move the
> buffer start up by the given number of bytes.
> * A means to reclaim the space must be provided. An IoBuffer.reclaim() would
> work by moving the buffer start back down by the given amount, maybe
> returning a slice to the recovered area. Or another alternative would be to
> have a series of prepend* methods which would prepend bytes/ints/etc. similar
> to put*(), but rather than adding to the end of the buffer, they would add to
> the beginning, moving the buffer start back down to the start of the
> just-written data. Though I'm not sure how helpful it would be to add
> another dozen methods to a class that already has probably over a hundred
> methods.
> * Care should be taken that the mechanism to prepend data does not allow a
> user to "escape" a buffer slice.
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