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From "Lance J. Andersen" <Lance.Ander...@Sun.COM>
Subject Re: [jira] Updated: (DERBY-1253) Verify that we don't raise SQLFeatureNotSupportedException for mandatory methods
Date Tue, 02 May 2006 17:16:58 GMT
If you support a data type such as Blob/Clob, you must implement all 
methods on the interface, not pick and choose.

If your backend does not support the data type, then all methods should 
throw SQLFeatureNotSupportedException.

This was a problem in the earlier JDBC specs as it did not clarify which 
methods were required and which were not.

Dyre Tjeldvoll (JIRA) wrote:
>      [ http://issues.apache.org/jira/browse/DERBY-1253?page=all ]
> Dyre Tjeldvoll updated DERBY-1253:
> ----------------------------------
>     Attachment: derby-1253.v1.diff
>                 derby-1253.v1.stat
> Attaching a patch that updates the exclude map with additional interfaces and methods.
> It still fails, but complains about fewer unsupported methods. I have run the test in
embedded and DerbyNetClient, but I have not run any other tests.
> The indentation mode that I use doesn't seem to grok such complicated array initializations,
so the indentation is a bit strange in some places. And I have not even tried to avoid lines
longer than 80 chars here, since that would make the exclude map initialization unreadable...
> I'm a bit unsure about what to accept for Blob/Clob. All the methods in these interfaces
are allowed to throw NotImplemented, but I'm wondering if the spec allows only some of them
to be not implemented?
>> Verify that we don't raise SQLFeatureNotSupportedException for mandatory methods
>> --------------------------------------------------------------------------------
>>          Key: DERBY-1253
>>          URL: http://issues.apache.org/jira/browse/DERBY-1253
>>      Project: Derby
>>         Type: Improvement
>>   Components: JDBC
>>     Versions:
>>     Reporter: Rick Hillegas
>>     Assignee: Dyre Tjeldvoll
>>      Fix For:
>>  Attachments: bug1253_verifier.diff, bug1253_verifier2.diff, derby-1253.v1.diff,
>> The jdk16 javadoc marks optional methods as being able to raise SQLFeatureNotSupportedException.
Make sure that we don't raise this exception for mandatory methods--unless we clearly understand
why we have chosen to deviate from the JDBC spec.

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