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HXTT DBF
query with order by clause throws nullpointer when locktype VFP is used
Rob Gansevles
2009-02-25 02:36:41.0
Hello,

The following sample program fails with a nullpointer.
The latest DBF_JDBC30.jar is used.

Rob

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class DBFTest4
{
public static void main(String[] args) throws Exception
{
String user = "";
String password = "";
String url = "jdbc:dbf:////tmp/dbftest?lockType=VFP";
String driver = "com.hxtt.sql.dbf.DBFDriver";

Class.forName(driver);

try
{
Connection connection = DriverManager.getConnection(url, user, password);
Statement statement = connection.createStatement();
statement.execute("drop table tst");
statement.close();
connection.close();
}
catch (SQLException e)
{
// table does not exists
}

Connection connection = DriverManager.getConnection(url, user, password);

Statement statement = connection.createStatement();
statement.execute("create table tst (x integer not null, primary key (x))");
statement.close();

PreparedStatement prepareStatement = connection.prepareStatement("select x from tst order by x asc");
ResultSet rs = prepareStatement.executeQuery();
rs.close();
prepareStatement.close();
connection.close();

System.out.println("OK");
}
}
Re:query with order by clause throws nullpointer when locktype VFP is used
HXTT Support
2009-02-25 03:27:57.0
That unexpected issue was resulted by compacted IDX format with Xbase lock. Fixed. Please download the latest package.
Re:Re:query with order by clause throws nullpointer when locktype VFP is used
Rob Gansevles
2009-02-25 04:47:06.0
It is fixed,thanks,
Rob

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