[ http://issues.apache.org/jira/browse/DERBY-1421?page=all ]
Fernanda Pizzorno updated DERBY-1421:
-------------------------------------
Attachment: derby-1421.diff
derby-1421.stat
ResultSet.updateBinaryStream() fails for scrollable updatable result sets
because of a call to the method ExecRow.clone() that fails. When the clone
method in the SQLBinary column is called, the stream has already been read and
is closed, and an attempt to read this closed stream causes an exception. The
streams used in this case are of type RemeberBytesInputStream. This type of
stream keeps a copy of every byte that has been read or skipped, and can be
re-read using a "replay" stream.
This patch (derby-1421.diff) fixes this problem by using the "replay" stream to
get the data, if the stream has previously been read. I have successfully run
derbyall with this patch. Can someone please review it?
Thank you in advance.
> ResultSet.updateBinaryStream fails when the result type is
> TYPE_SCROLL_INSENSITIVE
> ----------------------------------------------------------------------------------
>
> Key: DERBY-1421
> URL: http://issues.apache.org/jira/browse/DERBY-1421
> Project: Derby
> Type: Bug
> Components: JDBC
> Reporter: V.Narayanan
> Assignee: Fernanda Pizzorno
> Attachments: TestUpdateBinaryStream.java, derby-1421.diff, derby-1421.stat
>
> Attaching test program for the above bug. The program however works fine when
> the ResultSetType is TYPE_FORWARD_ONLY.
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