Version Property Example (VJ++)

Version Property Example (VJ++)

This example uses the Version property of a Connection object to display the current ADO version. It also uses several dynamic properties to show:

• the current DBMS name and version.
  
  
• OLE DB version.
  
  
• provider name and version.
  
  
• ODBC version.
  
  
• ODBC driver name and version.

import com.ms.wfc.data.*;
import java.io.*;

public class VersionX
{
    // The main entry point of the application.
    public static void main (String[] args)
    {
        VersionX();
        System.exit(0);
    }
    // VersionX Function
    static void VersionX()
    {
        // Define ADO Objects.
        Connection cnn1 = null;

        // Declarations.
        String strCnn = "Driver={SQL Server};Server=srv;" +
                        "User Id=sa; Password=;database=Pubs;";
        String strVersionInfo;
        BufferedReader in = new 
            BufferedReader(new InputStreamReader(System.in));
        try
        {
            // Open connection.
            cnn1 = new Connection();
            cnn1.open(strCnn);

            strVersionInfo = "\tADO Version:\t\t" + 
                cnn1.getVersion().toString()+"\n"+
                "\tDBMS Name:\t\t" + 
                cnn1.getProperties().getItem("DBMS Name").getString() +"\n"+
                "\tDBMS Version:\t\t"+ 
                cnn1.getProperties().getItem("DBMS Version").getString() + 
                "\n" + "\tOLE DB Version:\t\t" + 
                cnn1.getProperties().getItem("OLE DB Version").getString()+ 
                "\n" + "\tProvider Name:\t\t" + 
                cnn1.getProperties().getItem("Provider Name").getString() + 
                "\n" + "\tProvider Version:\t" + 
                cnn1.getProperties().getItem("Provider Version").
                getString() + "\n" + "\tDriver Name:\t\t" + 
                cnn1.getProperties().getItem("Driver Name").getString() + 
                "\n" + "\tDriver Version:\t\t" + 
                cnn1.getProperties().getItem("Driver Version").getString()+ 
                "\n" + "\tDriver ODBC Version:\t" + 
                cnn1.getProperties().getItem(
                "Driver ODBC Version").getString()+ "\n";
            System.out.println("\n\n" + strVersionInfo);

            // Cleanup Objects before exit.
            cnn1.close();
            System.out.println("Press <Enter> to continue..");
            in.readLine();
        }
        // System read requires this catch.
        catch(java.io.IOException je)
        {
            PrintIOError(je);
        }
        catch(AdoException ae)
        {
            // Notify the user of any errors that result from ADO.

            // As passing a recordset, check for null pointer first.
            if(cnn1!= null)
            {
                PrintProviderError(cnn1);
            }
            else
            {
                System.out.println("Exception: " + ae.getMessage());
            }
        }

    }
    // PrintProviderError Function
    static void PrintProviderError(Connection cnn1)
    {
        // Print Provider Errors from Connection Object.
        // ErrItem is an item object in the Connection’s Errors Collection.
        com.ms.wfc.data.Error               ErrItem = null;
        long                                 nCount = 0;
        int                                       i = 0;

        nCount = cnn1.getErrors().getCount();

        // If there are any errors in the collection, print them.
        if ( nCount > 0)
        {
            // Collection ranges from 0 to nCount-1.
            for ( i=0;i<nCount; i++)
            {
                ErrItem = cnn1.getErrors().getItem(i);
                System.out.println("\t Error Number: " + ErrItem.getNumber() 
                    + "\t" + ErrItem.getDescription());
            }
        }
    }
    // PrintIOError Function
    static void PrintIOError(java.io.IOException je)
    {
        System.out.println("Error: \n");
        System.out.println("\t Source: " + je.getClass() + "\n");
        System.out.println("\t Description: "+ je.getMessage() + "\n");
    }
}