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From "Mamta A. Satoor (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-2557) Provide a new interface on DataValueFactory(DVF) called getNull(formatId, collationType) which returns a DVD with proper collation association.
Date Thu, 19 Apr 2007 21:12:15 GMT

    [ https://issues.apache.org/jira/browse/DERBY-2557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12490177
] 

Mamta A. Satoor commented on DERBY-2557:
----------------------------------------

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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