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From "Knut Anders Hatlen (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-651) Re-enable the storing of java objects in the database
Date Mon, 14 Dec 2009 07:11:18 GMT

    [ https://issues.apache.org/jira/browse/DERBY-651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12790018#action_12790018
] 

Knut Anders Hatlen commented on DERBY-651:
------------------------------------------

Hi Rick,

There was one little piece of the 08 patch I didn't quite understand. Why does AliasDescriptor.isValid()
have to be synchronized?

> Re-enable the storing of java objects in the database
> -----------------------------------------------------
>
>                 Key: DERBY-651
>                 URL: https://issues.apache.org/jira/browse/DERBY-651
>             Project: Derby
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Rick Hillegas
>            Assignee: Rick Hillegas
>         Attachments: derby-651-01-aa-basicCreateDropType.diff, derby-651-02-af-udtColumnsRetvalsParams.diff,
derby-651-03-aa-udttestInstability.diff, derby-651-04-aa-javadoc.diff, derby-651-05-ac-dependencyTable.diff,
derby-651-06-aa-dropTable.diff, derby-651-07-aa-dependencyView.diff, derby-651-08-aa-dependencyRoutines.diff,
UserDefinedTypes.html, UserDefinedTypes.html, UserDefinedTypes.html, UserDefinedTypes.html
>
>
> Islay Symonette, in an email thread called "Storing Java Objects in a table" on October
26, 2005 requests the ability to store java objects in the database.
> Old releases of Cloudscape allow users to declare a column's type to be a Serializable
class. This feature was removed from Derby because the syntax was non-standard. However, most
of the machinery to support objects serialized to columns is still in Derby and is even used
in system tables. We need to agree on some standard syntax here and re-expose this useful
feature. Some subset of the ANSI adt syntax, cumbersome as it is, would do.

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