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From "Knut Anders Hatlen (JIRA)" <derby-...@db.apache.org>
Subject [jira] Updated: (DERBY-1445) Add new streaming overloads and modify some existing ones.
Date Tue, 27 Jun 2006 19:21:32 GMT
     [ http://issues.apache.org/jira/browse/DERBY-1445?page=all ]

Knut Anders Hatlen updated DERBY-1445:
--------------------------------------

    Attachment: ver3-washed.diff

The ver2 and ver3 patches reformatted large portions of otherwise
unmodified code. This makes it rather difficult to see what has been
changed by the patch, and it increases the probability of conflicts
with others working in this area of the code. Also, there were still
some methods that were indented more than the surrounding code. I took
the liberty of washing the formatting changes and incorrect
indentation out of the patch before reviewing and committing it.

The washed patch (based on ver3) is attached as ver3-washed.diff. It
was committed into trunk with revision 417548. With this commit, the
four jdbc40 tests that have been failing the last weeks now run
cleanly. Thank you Narayanan!

I still see two issues with the patch, and it would be great if you
could address them in a follow-up patch.

1) CallableStatementTest: testSetCharacterStream, testSetAsciiStream
   and testSetBinaryStream only fail if an exception is thrown that is
   not SQLFeatureNotSupportedException. They should also fail if no
   exception is thrown.

2) (This one is a minor issue which you can ignore if you want.) I
   agree with Kristian's earlier review comment that "there is no need
   to catch exceptions in JUnit tests when you don't take corrective
   actions."  That is, instead of writing

try {
  doSomething();
} catch (SomeKindOfException e) {
  fail("Failed " + e.getMessage());
}

   you could just declare the test method as "throws Exception" and
   skip try/catch/fail. It is simpler, and you also lose less
   information in the case of a failure (you preserve the stack trace,
   and possibly "caused by..."). The try/catch/fail pattern is used in
   PreparedStatementTest (testSetCharacterStream, testSetAsciiStream,
   testSetBinaryStream) and ResultSetTest (testUpdateBinaryStream,
   testUpdateAsciiStream, testUpdateCharacterStream,
   testUpdateBinaryStreamStringParameterName,
   testUpdateAsciiStreamStringParameterName,
   testUpdateCharacterStreamStringParameterName, embeddedUpdateClob,
   embeddedUpdateClobStringParameterName, embeddedUpdateBlob,
   embeddedUpdateBlobStringParameterName).

Thanks!

>  Add new streaming overloads and modify some existing ones.
> -----------------------------------------------------------
>
>          Key: DERBY-1445
>          URL: http://issues.apache.org/jira/browse/DERBY-1445
>      Project: Derby
>         Type: New Feature

>   Components: JDBC
>     Reporter: V.Narayanan
>     Assignee: V.Narayanan
>  Attachments: JDBC40_long_length_overloads.diff, JDBC40_long_length_overloads.stat, JDBC40_long_length_overloads_ver2.diff,
JDBC40_long_length_overloads_ver2.stat, JDBC40_long_length_overloads_ver3.diff, JDBC40_long_length_overloads_ver3.stat,
ver3-washed.diff
>
> The task involves Adding and modifying the following methods, which were recently added
by the JDBC4 expert group and which appeared in Mustang build 86:
>         add PreparedStatement.setAsciiStream (int columnIndex, InputStream x, long length)
>   	add PreparedStatement.setBinaryStream (int columnIndex, InputStream x, long length
>   	add PreparedStatement.setCharacterStream (int columnIndex, Reader x, long length)
>   	add CallableStatement.setAsciiStream (String columnName, InputStream x, long length)
>   	add CallableStatement.setBinaryStream (String columnName, InputStream x, long length)
>   	add CallableStatement.setCharacterStream (String columnName, Reader x, long length)
>   	add ResultSet.updateAsciiStream (int columnIndex, InputStream x, long length)
>   	add ResultSet.updateBinaryStream (int columnIndex, InputStream x, long length)
>   	add ResultSet.updateCharacterStream (int columnIndex, Reader x, long length)
>   	add ResultSet.updateAsciiStream (String columnName, InputStream x, long length)
>   	add ResultSet.updateBinaryStream (String columnName, InputStream x, long length)
>   	add ResultSet.updateCharacterStream (String columnName, Reader x, long length)
>   	add ResultSet.updateBlob (int columnIndex, InputStream x, long length)
>   	add ResultSet.updateBlob (String columnName, InputStream x, long length)
>   	add ResultSet.updateClob (int columnIndex, Reader x, long length)
>   	add ResultSet.updateClob (String columnName, Reader x, long length)
>   	add ResultSet.updateNClob (int columnIndex, Reader x, long length)
>   	add ResultSet.updateNClob (String columnName, Reader x, long length)
>   	modify ResultSet.updateNCharacterStream(int columnIndex, Reader x, int length) to
ResultSet.updateNCharacterStream(int columnIndex, Reader x, long
>         length)
>   	modify ResultSet.updateNCharacterStream(String columnName, Reader x, int length) to
ResultSet.updateNCharacterStream(String columnName, 
>         Reader x, long length)

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