db-derby-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Kristian Waagan (JIRA)" <derby-...@db.apache.org>
Subject [jira] Closed: (DERBY-609) Returning ByteArrayInputStream from ResultSet is not appropriate
Date Mon, 17 Jul 2006 11:48:16 GMT
     [ http://issues.apache.org/jira/browse/DERBY-609?page=all ]

Kristian Waagan closed DERBY-609.
---------------------------------

    Fix Version/s: 10.2.0.0
                       (was: 10.1.2.1)
       Resolution: Fixed

> Returning ByteArrayInputStream from ResultSet is not appropriate
> ----------------------------------------------------------------
>
>                 Key: DERBY-609
>                 URL: http://issues.apache.org/jira/browse/DERBY-609
>             Project: Derby
>          Issue Type: Bug
>          Components: Network Client
>            Reporter: Tomohito Nakayama
>         Assigned To: Tomohito Nakayama
>             Fix For: 10.2.0.0
>
>         Attachments: DERBY-609.patch
>
>
> Point where it is not appropriate :
> 1: Compatibility
> The InputStream returned from result set is closed when other getXXXX method was called
.
> http://java.sun.com/j2se/1.5.0/docs/api/java/sql/ResultSet.html
> However closing ByteArrayInputStream have no effect at all .
> http://java.sun.com/j2se/1.5.0/docs/api/java/io/ByteArrayInputStream.html#close()
> It seems intended that closable InputStream was returned from result set .
> If ByteArrayInputStream was returned from result set , the stream cannot be closed, 
> and compatibility would be lost .
> 2: Performance of program 
> Information inputted from ByteArrayInputStream needs to be expanded to memory as byte[]
object .
> If large byte[] object was created for each ByteArrayInputStream object , 
> program will run in bad performance .
> // I think problem is when information typed as LOB was retrieved from ResultSet .
> // Because such informations typed as LOB tend to be large amount .

-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message