db-derby-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Rick Hillegas (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DERBY-5488) Add remaining JDBC 4.1 bits which did not appear in the Java 7 javadoc.
Date Tue, 01 Nov 2011 15:13:32 GMT

    [ https://issues.apache.org/jira/browse/DERBY-5488?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13141226#comment-13141226
] 

Rick Hillegas commented on DERBY-5488:
--------------------------------------

Thanks for helping me puzzle through these issues, Kristian. The default behavior of these
methods is to measure positions and lengths in characters (I have just confirmed this with
JDBC spec lead Lance Andersen). That's what Derby does already and that seems to me to be
the portable usage. What the new, optional arguments let you do is ask the database to measure
positions and lengths in octets. I think that octet-lengths are not likely to be portable.
That is because the octet-lengths will vary depending on whether the engine code is written
in Java or C. For C databases, octet-lengths will vary depending on the default encoding for
the engine. I think we have a good portability story here. Thanks.
                
> Add remaining JDBC 4.1 bits which did not appear in the Java 7 javadoc.
> -----------------------------------------------------------------------
>
>                 Key: DERBY-5488
>                 URL: https://issues.apache.org/jira/browse/DERBY-5488
>             Project: Derby
>          Issue Type: Improvement
>          Components: JDBC, SQL
>    Affects Versions: 10.9.0.0
>            Reporter: Rick Hillegas
>         Attachments: JDBC_4.1_Supplement.html
>
>
> In addition to the JDBC 4.1 bits which were visible in the Java 7 javadoc, a couple other
items appear in the JDBC 4.1 Maintenance Review spec. This spec has been published on the
JCP website at http://download.oracle.com/otndocs/jcp/jdbc-4_1-mrel-eval-spec/index.html.
I will attach a functional spec for the remaining bits.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message