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https://issues.apache.org/jira/browse/DERBY-2557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12490177
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Mamta A. Satoor commented on DERBY-2557:
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Commited the patch
DERBY2557_getObject_Using_CollationType_FormatID_interface_on_DVF_v2_diff.txt
using revision 530546
> Provide a new interface on DataValueFactory(DVF) called getNull(formatId,
> collationType) which returns a DVD with proper collation association.
> ------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: DERBY-2557
> URL: https://issues.apache.org/jira/browse/DERBY-2557
> Project: Derby
> Issue Type: New Feature
> Components: SQL
> Affects Versions: 10.3.0.0
> Reporter: Mamta A. Satoor
> Assigned To: Mamta A. Satoor
> Attachments: DERBY2535_Return_Collator_api_On_DVD_v1_diff.txt,
> DERBY2535_Return_Collator_api_On_DVD_v1_stat.txt,
> DERBY2557_getObject_Using_CollationType_FormatID_interface_on_DVF_v1_diff.txt,
>
> DERBY2557_getObject_Using_CollationType_FormatID_interface_on_DVF_v1_stat.txt,
>
> DERBY2557_getObject_Using_CollationType_FormatID_interface_on_DVF_v2_diff.txt,
> DERBY2557_getObject_Using_CollationType_FormatID_interface_on_DVF_v2_stat.txt
>
>
> Provide a new interface, called
> getInstanceUsingFormatIdAndCollationType(formatId, collationType) on DVF.
> Store will call this interface to create empty DVD objects and then load
> these DVD objects using readExternal. For performance efficiency, when Store
> needs more of the same base DVD, then on subsequent needs, it will call
> DVD.getNewNull rather than calling
> DVF.getInstanceUsingFormatIdAndCollationType again. This work is required for
> DERBY-2537.
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