[jira] Closed: (DERBY-2557) Provide a new interface on DataValueFactory(DVF) called getNull(formatId, collationType) which returns a DVD with proper collation association.

["Mamta A. Satoor (JIRA)" <ji...@apache.org>]

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

Mamta A. Satoor closed DERBY-2557.
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> 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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