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From "Kathey Marsden (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-898) setAutoCommit(false) is not working properly for local transaction with ClientXADataSource
Date Wed, 08 Feb 2006 04:14:02 GMT
    [ http://issues.apache.org/jira/browse/DERBY-898?page=comments#action_12365518 ] 

Kathey Marsden commented on DERBY-898:
--------------------------------------

OK. So I decided to go with option 1), but wonder what the naming convention should be for
this.
Right now I have simpleSavepointJdbc30.java for the base test that runs with all jvms and
extendedSavepointJdbc30.java for the one that has the non J2ME/CDC/FP functionality, but would
there be a better naming convention? 





> setAutoCommit(false) is not working properly for local transaction with ClientXADataSource
> ------------------------------------------------------------------------------------------
>
>          Key: DERBY-898
>          URL: http://issues.apache.org/jira/browse/DERBY-898
>      Project: Derby
>         Type: Bug
>   Components: Network Server
>     Versions: 10.1.1.0, 10.1.1.1
>     Reporter: Kathey Marsden
>     Assignee: Kathey Marsden
>     Priority: Critical
>      Fix For: 10.2.0.0, 10.1.3.0, 10.1.2.3
>  Attachments: DERBY-898.diff
>
>  Network Server is not honoring local 
> transaction rollback using ClientXADataSource.  Run the following standalone JDBC code.
 
> The output shows that after rolling back the local transaction, 
> the inserted data is still present.
>         final org.apache.derby.jdbc.ClientXADataSource ds =
>             new org.apache.derby.jdbc.ClientXADataSource();
>         ds.setServerName("localhost");
>         ds.setPortNumber(1527);
>         
> ds.setDatabaseName("WOMBAT");
>         ds.setTraceLevel(-1);
>         
> ds.setSecurityMechanism(ds.CLEAR_TEXT_PASSWORD_SECURITY);
>         ds.setUser("dbuser1");
>         ds.setPassword("dbpwd1");
>         //ds.setLogWriter(new 
> java.io.PrintWriter(System.out));
>         XAConnection xaConn = ds.getXAConnection();
>         Connection conn = xaConn.getConnection();
>         
> conn.setTransactionIsolation(Connection.TRANSACTION_REPEATABLE_R
> EAD);
>         conn.setAutoCommit(true);
>         System.out.println("Database product: " + 
> conn.getMetaData().getDatabaseProductName());
>         System.out.println("Database version: " + 
> conn.getMetaData().getDatabaseProductVersion());
>         System.out.println("Driver name:      " + 
> conn.getMetaData().getDriverName());
>         System.out.println("Driver version:   " + 
> conn.getMetaData().getDriverVersion());
>         Statement stmt = conn.createStatement();
>         try { stmt.execute("drop table cmtest"); }
>         catch (SQLException sqlX) {} // ok, didn't exist
>         stmt.execute("CREATE TABLE cmtest (id integer not null 
> primary key, name varchar(60))");
>         stmt.close();
>         conn.setAutoCommit(false);
>         PreparedStatement pstmt = conn.prepareStatement(
>             "INSERT INTO cmtest (id, name) VALUES(?,?)",
>             ResultSet.TYPE_FORWARD_ONLY,
>             ResultSet.CONCUR_READ_ONLY);
>         pstmt.setInt(1, 13);
>         pstmt.setString(2, "blah1");
>         pstmt.executeUpdate();
>         pstmt.setInt(1, 2);
>         pstmt.setString(2, "blah2");
>         pstmt.executeUpdate();
>         conn.rollback();
>         PreparedStatement pstmt2 = conn.prepareStatement(
>             "SELECT * FROM cmtest WHERE id = ?",
>             ResultSet.TYPE_FORWARD_ONLY,
>             ResultSet.CONCUR_READ_ONLY);
>         pstmt2.setInt(1, 13);
>         ResultSet rset = pstmt2.executeQuery();
>         if (rset.next())
>         {
>             System.out.println("Test fails. First insert was 
> not rolled back.");
>             System.out.println("The data is still present. It 
> is: " + rset.getObject(1) +
>                                ", " + rset.getObject(2));
>         }
>         else
>             System.out.println("Test passes. First insert was 
> rolled back.");
> Here's the output,
>     Database product: Apache Derby
>     Database version: 10.1.2.2
>     Driver name:      Apache Derby Network Client JDBC Driver
>     Driver version:   10.1.2.2
>     Test fails. First insert was not rolled back.
>     The data is still present. It is: 13, blah1
> On some brief investigation I see that the Network Server embedded connection is  in
autocomit mode so is autocommitting the transaction before the rollback.   Network server
should always have autocommit false and let the client drive the commit.  

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