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From "Bryan Pendleton (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-6773) Derby throws plain SQLIntegrityConstraintViolationException
Date Fri, 27 Feb 2015 23:09:04 GMT

    [ https://issues.apache.org/jira/browse/DERBY-6773?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14340992#comment-14340992
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Bryan Pendleton commented on DERBY-6773:
----------------------------------------

Here are three things that I think would be useful to do next:

1) Prototype a change that could fix this job. I think one thing to do
    would be to change engine/org/apache/derby/impl/jdbc/SQLExceptionFactory.java
    line 85 so that it generates a different exception instance, as suggested by Jochen.

2) Modify the repro program to turn it into a test case in one of the Derby test suites.
    Perhaps the suite ConstraintCharacteristicsTest would be a good place to add
    our new test cases.

3) Study the discussion notes that occurred among the Derby Developers last year
   regarding this situation:

http://apache-database.10148.n7.nabble.com/Fwd-Duplicate-key-feature-request-tt143371.html

   Several important concerns were raised about how to address this request that 
   we should study and understand.

I think/hope that you could make headway on all of these separate courses of
action and let me/us know what you think as you study the issue in more detail.

> Derby throws plain SQLIntegrityConstraintViolationException
> -----------------------------------------------------------
>
>                 Key: DERBY-6773
>                 URL: https://issues.apache.org/jira/browse/DERBY-6773
>             Project: Derby
>          Issue Type: Improvement
>          Components: JDBC
>    Affects Versions: 10.10.2.0
>         Environment: Windows 7 x86_64, Java 1.6.0.45
>            Reporter: Jochen Wiedmann
>            Assignee: Abhinav Gupta
>            Priority: Minor
>         Attachments: DERBY6733Repro.java
>
>
> If a unique constraint is violated by an insert statement, then Derby throws an SQLIntegrityConstraintViolationException.
The error message contains, in particular, the constraint name and the table name.
> To distinguish between cases with various constraints, Derby should instead throw a subclass
of SQLIntegrityConstraintViolationException, with methods like getConstraintName(), and getTableName().
> See also https://hibernate.atlassian.net/browse/HHH-9516.



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