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From "Rick Hillegas (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-1281) JDBC4 Compliance
Date Thu, 04 May 2006 20:51:17 GMT
    [ http://issues.apache.org/jira/browse/DERBY-1281?page=comments#action_12377887 ] 

Rick Hillegas commented on DERBY-1281:
--------------------------------------

By listing a method as unsupported, I'm just saying that it isn't supported in one of our
clients (Network or Embedded). To figure out which client skips which method, please run the
UnsupportedVetter test under jdk1.6. This will tell you which API methods in which clients
are inappropriately raising SQLFeatureNotSupportedException. The test even tells you where
the exception originates in the code--thanks, Dyre!

> JDBC4 Compliance
> ----------------
>
>          Key: DERBY-1281
>          URL: http://issues.apache.org/jira/browse/DERBY-1281
>      Project: Derby
>         Type: Improvement

>   Components: JDBC
>     Versions: 10.2.0.0
>     Reporter: Rick Hillegas
>      Fix For: 10.2.0.0

>
> Here is my analysis of where we currently fall short of JDBC4 compliance, based on my
reading of the current draft revision of the JDBC4 Compliance chapter. I will break this into
subtasks.
> Comparison of Derby to early May sneak preview of the JDBC4 Compliance Chapter:
> 6.1 Definitions
> Just a recital of definitions.
> 6.2
> Supported:
> - Entry level SQL 92
> - Escape syntax
> - Transactions
> - Driver access to all documented Derby features
> - SQLFeatureNotSupportedException thrown for unimplemented optional features
> - Agreement between DatabaseMetaData and actual feature set
> 6.3 JDBC 4.0 API Compliance
> Supported:
> - Supports a ResultSet type of TYPE_FORWARD_ONLY
> - Supports a ResultSet concurrency of CONCUR_READ_ONLY
> - Supports batch updates
> - Fully implements the following interfaces:
>   * java.sql.Driver
>   * java.sql.DatabaseMetaData
>   * java.sql.ParameterMetaData
>   * java.sql.ResultSetMetaData
>   * java.sql.Wrapper
>   * javax.sql.DataSource
> Unsupported:
> - The following java.sql.Connection methods:
>   * getClientInfo()
>   * getClientInfo(java.lang.String)
>   * setClientInfo(java.lang.String,java.lang.String)
> - The following java.sql.Statement methods:
>   * cancel()
> - The following java.sql.PreparedStatement methods:
>   * setUnicodeStream(int,java.io.InputStream,int)
> - The following java.sql.CallableStatement methods:
>   * getBlob(int)
>   * getClob(int)
> - The following java.sql.ResultSet methods:
>   * getUnicodeStream(int)
>   * getUnicodeStream(java.lang.String)
> - The following java.sql.Blob methods:
>   * java.sql.Blob.setBytes(long,byte[])
>   * setBytes(long,byte[],int,int)
>   * getBinaryStream(long,long)
>   * setBinaryStream(long)
>   * truncate(long)
> - The following java.sql.Clob methods:
>   * setString(long,java.lang.String)
>   * setString(long,java.lang.String,int,int)
>   * setAsciiStream(long)
>   * getCharacterStream(long,long)
>   * setCharacterStream(long)
>   * truncate(long)
> 6.4 Java EE JDBC Compliance
> Supported:
> - escape functions concat, substring, locate, length,
>    abs, sqrt, mod.
> - executeUpdate() works for calling procedures via
>   escape syntax.
> Unsupported:
> - OUT parameters not supported for these datatypes: BLOB, CLOB
> - executeQuery() does NOT work for calling procedures via escape syntax.
> IN ACTIVE DEVELOPMENT
> - The following java.sql.Connection methods:
>   * Brokered class forwarding:
>     - isValid(int)
>     - createQueryObject(java.lang.Class)
>     - getClientInfo()
>     - getClientInfo(java.lang.String)
>     - setClientInfo(java.lang.String,java.lang.String)
>   * LOB improvements:
>     - createBlob()
>     - createClob()
> - The following java.sql.Statement methods:
>   * Brokered class forwarding:
>     - isClosed()
>     - cancel()
> - The following java.sql.PreparedStatement methods:
>   * Brokered class forwarding:
>     - setUnicodeStream(int,java.io.InputStream,int)
>     - setBlob(int,java.io.InputStream,long)
>     - setClob(int,java.io.Reader,long)
> - The following java.sql.CallableStatement methods:
>   * Brokered class forwarding:
>     - getBlob(int)
>     - getClob(int)
> - The following java.sql.Blob methods:
>   * LOB improvements:
>     - free()
> - The following java.sql.Clob methods:
>   * LOB improvements:
>     - free()

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