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From Øystein Grøvlen (JIRA) <j...@apache.org>
Subject [jira] Commented: (DERBY-1341) LOB set method(s) are currently no supported, but part of the Java 1.4 JDBC interface
Date Fri, 15 Jun 2007 10:38:26 GMT

    [ https://issues.apache.org/jira/browse/DERBY-1341?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12505140
] 

Øystein Grøvlen commented on DERBY-1341:
----------------------------------------

Release note looks good, I have a few comments to the form:
  - According to the comments in the template, the summary is supposed
    to be a one-liner.  I suggest you move the rest to the next
    section.
  - You should delete the headings for the optional sections that you
    have not used.
  - I think you should refer to Java SE 6, not jdk 1.6.


> LOB set method(s) are currently no supported, but part of the Java 1.4 JDBC interface
> -------------------------------------------------------------------------------------
>
>                 Key: DERBY-1341
>                 URL: https://issues.apache.org/jira/browse/DERBY-1341
>             Project: Derby
>          Issue Type: Improvement
>          Components: JDBC
>    Affects Versions: 10.0.2.0, 10.0.2.1, 10.0.2.2, 10.1.1.0, 10.1.2.1, 10.1.3.1, 10.2.1.6,
10.3.0.0
>         Environment: all
>            Reporter: Keith McFarlane
>            Assignee: Anurag Shekhar
>             Fix For: 10.3.0.0
>
>         Attachments: derby-1341-blob-forreview.diff, derby-1341.diff, LobStreamTest.java,
releaseNotes.html
>
>
>  JDBC LOB . getBtypes methods are not implemented in any Derby version to date: there
is a "place-holder" method that throws a SQLException reporting that the methods are not implemented.
> It would be excellent to have any efficient Derby implementation of the getBytes LOB
methods that provide "random-access" to the binary // character content of database large
objects. The specific context is implementing a Lucene Directory interface that stores indexing
data (index files) and other binary data in a local encrypted Derby instance. 
>  A work around is to write an encrypted RandomAccessFile implementation as a file-sdystem
buffer, perhaps writing to the database on closure. An efficient Derby implementation of LOB
. getBytes would avoid this an make for a clean design. I can think of several reasons why
random-access to LOBs would be valuable in a "hostile"  client environment. 
>  

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