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Description, HelpContext, HelpFile, NativeError, Number, Source, and SQLState Properties Example (VJ++)

This example triggers an error, traps it, and displays the Description, HelpContext, HelpFile, NativeError, Number, Source, and SQLState properties of the resulting Error object.

// BeginDescriptionJ
// The WFC class includes the ADO objects.

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

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

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

   // DescriptionX function

   static void DescriptionX()
   {
      // Declarations.
      BufferedReader in = new 
         BufferedReader(new InputStreamReader(System.in));

      // Define ADO Objects.
      Connection cnConn1 = null;

      try
      {
         // Intentionally trigger an error.
         cnConn1 = new Connection();
         cnConn1.open("nothing");
      }
      catch( AdoException ae )
      {
         // Notify user of any errors that result from ADO.
         PrintProviderError(cnConn1);
      }

      try
      {
         System.out.println("\nPress <Enter> key to continue.");
         in.readLine();
      }
      // 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");
   }
}
// EndDescriptionJ
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