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https://issues.apache.org/jira/browse/DERBY-651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12790176#action_12790176
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Rick Hillegas commented on DERBY-651:
-------------------------------------
Hi Knut,
Thanks for reading the patch. I don't know why isValid() is synchronized. I
simply copied that signature from another tuple descriptor. I also introduced a
synchronized isValid() method to TableDescriptor in an earlier patch:
derby-651-05-ac-dependencyTable.diff and a synchronized isValid() method was
introduced when SequenceDescriptor was added earlier this year. Most of our
Dependents have synchronized isValid() methods, but not all. Here's the
situation:
Synchronized:
Alias
Constraint
Default
Sequence
SPS
Table
Trigger
Unsynchronized:
BaseActivation
GenericActivationHolder
GenericPreparedStatement
View
> 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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