AddNew Method Example (VJ++)

AddNew Method Example (VJ++)

This example uses the AddNew method to create a new record with the specified name.

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

public class AddNewX
{
    // The main entry point for the application.

    public static void main (String[] args)
    {
        AddNewX();
        System.exit(0);
    }

    // AddNewX function

    static void AddNewX()
    {
        // Define ADO Objects.
        Connection cnConn1 = null;
        Recordset rstEmployees = null;

        //Declarations.
        String strCnn;
        String strID;
        String strFirstName;
        String strLastName;
        boolean booRecordAdded ;
        BufferedReader in = 
new BufferedReader (new InputStreamReader (System.in));
        String line = null;

        try
        {
            // Open a connection.
            strCnn = "Provider=sqloledb;Data Source=srv;"
                + "Initial Catalog=pubs;User Id=sa;Password=;";
            cnConn1 = new Connection();
            cnConn1.open(strCnn);//,"","",AdoEnums.CommandType.UNSPECIFIED);

            // Open Employees table.
            rstEmployees = new Recordset ();
            rstEmployees.open("employee", cnConn1, 
                AdoEnums.CursorType.KEYSET , AdoEnums.LockType.OPTIMISTIC , 
                AdoEnums.CommandType.TABLE );

            /* Get data from the user. The employee ID must be formatted as
            first,middle, and last initial, five numbers, then M or F to
            signify the gender. For example, the employee id for Bill 
            Sornsin would be "B-S55555M". */
            System.out.println("\nEnter employee ID :");
            strID = in.readLine().trim();
            System.out.println("\nEnter first name :");
            strFirstName = in.readLine().trim();
            System.out.println("\nEnter last name :");
            strLastName = in.readLine().trim();

            // Proceed only if the user actually entered something
            // for both the first and last names.

            if ( !(strID.compareTo("") == 0) & 
                !(strFirstName.compareTo("") == 0) & 
                !(strLastName.compareTo("")== 0))
            {
                // Add new record.
                rstEmployees.addNew();
                rstEmployees.getField("emp_id").setString(strID);
                rstEmployees.getField("fname").setString(strFirstName);
                rstEmployees.getField("lname").setString(strLastName);

                // update the record with the new data.
                rstEmployees.update();
                booRecordAdded = true;

                // Show the newly added data.
                System.out.println("\nNew record : " 
                    + rstEmployees.getField("emp_id").getString()+ " "
                    + rstEmployees.getField("fname").getString()+ " "
                    + rstEmployees.getField("lname").getString());
            }
            else
            {
                System.out.println("\nPlease enter an employee ID," +
                    "first name, and last name.");
            }

            System.out.println("\n\nPress <Enter> key to continue.");
            line = in.readLine();

            // Delete the new record because this is a demonstration.
            cnConn1.execute("DELETE FROM employee WHERE " 
                + "emp_id = '" + strID + "'");

            //Cleanup objects before exit.
            rstEmployees.close();
            cnConn1.close();
            System.exit(0);
        }
        catch( AdoException ae )
        {
            // Notify user of any errors that result from ADO.

            //Check for null pointer for connection object.
            if(rstEmployees.getActiveConnection()==null)
                System.out.println("Exception: " + ae.getMessage());
            // As passing a Recordset, check for null pointer first.
            if (rstEmployees != null)
            {
                PrintProviderError(rstEmployees.getActiveConnection());
            }
            else
            {
                System.out.println("Exception: " + ae.getMessage());
            }
            System.exit(0);
        }
        // System Read requires this catch.
        catch( java.io.IOException je )
        {
            PrintIOError(je);
        }
    }

    // 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("\tSource = " + je.getClass() + "\n");
        System.out.println("\tDescription = " + je.getMessage() + "\n");
    }
}