binary data

Hi all!

I'm trying to store image data in a postgresql 7.3.2 data using the 7.3.2
jdbc3 drivers. The table "tfile" contains an integer field "id" and a bytea
field "content".

I store the image with code similar to this:

InputStream is;
PreparedStatement statement;
int rowsAffected;

is = new FileInputStream("image.png");
statement = getConnection().prepareStatement("UPDATE tfile SET content=?
WHERE id=4");
getConnection().setAutoCommit(false);
statement.setBinaryStream(1, is, MAX_FILE_SIZE);
rowsAffected = statement.executeUpdate();
getConnection().commit();
getConnection().setAutoCommit(true);
is.close();
}

This works fine, and the size of the "content" field in the database is
equal to the size of the file, 4342 bytes.

I fetch the image back from the database with code similar to this:

String query;
ResultSet resultSet;

query = "SELECT content FROM tfile WHERE id=4";
resultSet = null;

try {
boolean more;

resultSet = executeTheQuery(query);
more = resultSet.next();

if (more) {
InputStream is;

is = resultSet.getBinaryStream("content");
setContent(is);
}
} catch (SQLException anSQLException) {
}

I've read and re-read the documentation, and this should work. However,
checking the size of the content InputStream shows that the size is 5527
bytes instead of 4342. Doing a compare with the original image reveals what
seems like unicode character sequences. For example "å" is replaced with
"Ã¥".

Is this correct behaviour? Must I convert binary data from a bytea field?

If I have missed something obvious, I apologize, but I hope someone can help
me, please. Any help is greatly appreciated.

With kind regards,
Uwe Kubosch

_________________________________________
Uwe Kubosch
Adviser eCommerce
ICQ#: 71437007
More ways to contact me: http://wwp.icq.com/71437007
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