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From "Mike Matrigali (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-651) Re-enable the storing of java objects in the database
Date Fri, 16 Oct 2009 19:03:31 GMT

     [ https://issues.apache.org/jira/browse/DERBY-651?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mike Matrigali updated DERBY-651:
---------------------------------


Just a heads up, I don't think the storage support for user defined types which don't implement
the 
special read/write interfaces works anymore.  It may partially work, but I seem to remember
some
dead code being not updated or being removed, there may be ASSERTS that pop.  So extra testing
necessary in this area.  Best to test types that are both sometimes less than a page and some
that are more than a page. Another area that
may be problem would be network testing in addition to embedded testing, again in the area
of a new
type that just defaults to the basic java externalization routines.

> 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
>         Attachments: 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, cumbersom as it is, would do.

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