db-derby-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Yun Lee (JIRA)" <j...@apache.org>
Subject [jira] Commented: (DERBY-3991) Clob.truncate(0) throws exception
Date Tue, 31 Mar 2009 14:02:14 GMT

    [ https://issues.apache.org/jira/browse/DERBY-3991?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12694119#action_12694119

Yun Lee commented on DERBY-3991:

Kistian, thanks for your comments. 

>You could consider trying to access the empty string using a stream too (currently the
test I wrote originally only uses getSubString). 
I will do it later.

>Users will also see a different error message with the embedded driver now. Does this
warrant a release note? 
>The new error message is both more specific and it is the same as the one thrown by the
client driver, which is justification enough for the change.
I'm not sure. Do you mean I replaced 'SQLState.BLOB_BAD_POSITION' with 'SQLState.BLOB_NONPOSITIVE_LENGTH'
in EmbedClob.java? If you do, I just want to give a clearer exception message.As a new comer,
I don't know whether it's proper to do so, and don't know what it does with ' a release note'.
Wish for your explanation.


> Clob.truncate(0) throws exception
> ---------------------------------
>                 Key: DERBY-3991
>                 URL: https://issues.apache.org/jira/browse/DERBY-3991
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions:,,,
>            Reporter: Kristian Waagan
>            Assignee: Yun Lee
>            Priority: Minor
>         Attachments: derby-3991-1a-ClobTruncateZeroTest.diff, derby-3991-2a.diff
> Truncating a Clob to zero length is allowed according to the JDBC specification, which
says the following about the len argument (in the @throws tag):
> "SQLException - if there is an error accessing the CLOB value or if len is less than
0 "
> Derby throws an exception if zero is passed to truncate.
> A quick inspection of the code suggests that truncating a Clob to the empty string is
easy to support.

This message is automatically generated by JIRA.
You can reply to this email to add a comment to the issue online.

View raw message