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From "Tomohito Nakayama (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-1417) Add new, lengthless overloads to the streaming api
Date Wed, 26 Jul 2006 10:07:16 GMT
    [ http://issues.apache.org/jira/browse/DERBY-1417?page=comments#action_12423598 ] 
Tomohito Nakayama commented on DERBY-1417:

I notice the problem that buffer size of EncodedInputStream does not suit for all encoding,
especially UTF-8.
UTF-8 needs three bytes for a character which is out of ISO-8859-1.

This is reason why I limit the encoding to UTF32BE in UTF32BEEncodedInputStream.

If you intend to share the class to multiple encodins, 
I think you should create subclass of each encodings inherited from EncodedInputStream which
contaiins hard-coded size of buffer and encoding identifier.

> Add new, lengthless overloads to the streaming api
> --------------------------------------------------
>                 Key: DERBY-1417
>                 URL: http://issues.apache.org/jira/browse/DERBY-1417
>             Project: Derby
>          Issue Type: New Feature
>          Components: JDBC
>    Affects Versions:
>            Reporter: Rick Hillegas
>         Assigned To: Kristian Waagan
>             Fix For:
>         Attachments: derby-1417-01-castsInTests.diff, derby-1417-1a-notImplemented.diff,
derby-1417-1a-notImplemented.stat, derby-1417-2a-rstest-refactor.diff, derby-1417-3a-embimpl-and-tests.diff,
derby-1417-3a-embimpl-and-tests.stat, derby-1417-3b-embimpl-and-tests.diff, derby-1417-3b-embimpl-and-tests.stat,
derby-1417-4a-disable-psTestsDnc.diff, derby-1417-5a-brokered.diff, derby-1417-5a-brokered.stat,
derby-1417-6a-clientimpl.diff, derby-1417-6a-clientimpl.stat
> The JDBC4 Expert Group has approved a new set of overloads for the streaming methods.
These overloads do not take a length argument. Here are the new overloads:
> PreparedStatement.setAsciiStream(int parameterIndex, java.io.InputStream x)
> PreparedStatement.setBinaryStream(int parameterIndex, java.io.InputStream x)
> PreparedStatement.setCharacterStream(int parameterIndex, java.io.Reader reader)
> PreparedStatement.setNCharacterStream(int parameterIndex, java.io.Reader reader)
> PreparedStatement.setBlob(int parameterIndex, java.io.InputStream inputStream)
> PreparedStatement.setClob(int parameterIndex, java.io.Reader reader)
> PreparedStatement.setNClob(int parameterIndex, java.io.Reader reader)
> CallableStatement.setAsciiStream(java.lang.String parameterName, java.io.InputStream
> CallableStatement.setBinaryStream(java.lang.String parameterName, java.io.InputStream
> CallableStatement.setCharacterStream(java.lang.String parameterName, java.io.Reader reader)
> CallableStatement.setNCharacterStream(java.lang.String parameterName, java.io.Reader
> CallableStatement.setBlob(java.lang.String parameterName, java.io.InputStream inputStream)
> CallableStatement.setClob(java.lang.String parameterName, java.io.Reader reader)
> CallableStatement.setNClob(java.lang.String parameterName, java.io.Reader reader)
> ResultSet.updateAsciiStream(int columnIndex, java.io.InputStream x)
> ResultSet.updateAsciiStream(java.lang.String columnLabel, java.io.InputStream x)
> ResultSet.updateBinaryStream(int columnIndex, java.io.InputStream x)
> ResultSet.updateBinaryStream(java.lang.String columnLabel, java.io.InputStream x, int
> ResultSet.updateCharacterStream(int columnIndex, java.io.Reader x)
> ResultSet.updateCharacterStream(java.lang.String columnLabel, java.io.Reader x)
> ResultSet.updateNCharacterStream(int columnIndex, java.io.Reader x)
> ResultSet.updateNCharacterStream(java.lang.String columnLabel, java.io.Reader x)  
> ResultSet.updateBlob(int columnIndex, java.io.InputStream inputStream)
> ResultSet.updateBlob(java.lang.String columnLabel, java.io.InputStream inputStream)
> ResultSet.updateClob(int columnIndex, java.io.Reader reader)
> ResultSet.updateClob(java.lang.String columnLabel, java.io.Reader reader)
> ResultSet.updateNClob(int columnIndex, java.io.Reader reader)
> ResultSet.updateNClob(java.lang.String columnLabel, java.io.Reader reader)
> We should add these new overloads soon so that the build will not break when this methods
turn up in a published Mustang build.

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