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https://issues.apache.org/jira/browse/DERBY-2646?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kristian Waagan updated DERBY-2646:
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Attachment: derby-2646-03a-internalclob.diff
'derby-2646-03a-internalclob.diff' deprecates version 02a.
The patch defines a new interface for internal Clob objects. The point of this
is to make better use of OO programming techniques, and also to split the code
into smaller pieces. This will make it easer to both review and debug.
I plan to have two imlementations:
a) StoreStreamClob - a read-only Clob working on streams from store
b) ClobStreamControl - a writable Clob working on a memory or disk image of
the content
I plan to rename the latter to TemporaryClob, as Derby operates on copies of
the Clob value when modifications are done.
The switch between the implementations/representations is one-way; you operate
on store streams until you modify the Clob. Note that using
Connection.createClob() will create a temporary Clob.
As a side note, the matter of representing the temporary Clob in memory or on
disk is left to LOBStreamControl.
This patch will be committed shortly.
More patches will follow.
> Cleanup of Clob control/support structures
> ------------------------------------------
>
> Key: DERBY-2646
> URL: https://issues.apache.org/jira/browse/DERBY-2646
> Project: Derby
> Issue Type: Sub-task
> Components: JDBC
> Affects Versions: 10.3.0.0
> Reporter: Kristian Waagan
> Assignee: Kristian Waagan
> Attachments: derby-2646-01a_trailing_space.diff,
> derby-2646-01a_trailing_space.stat, derby-2646-02a-clob-reorg.diff,
> derby-2646-02a-clob-reorg.stat, derby-2646-03a-internalclob.diff
>
>
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