bookpurchasescreen.java

java web services how to program

// Fig. 16.22: BookPurchaseScreen.java
// BookPurchaseScreen is a MIDlet screen that invokes the Book
// Purchase Web service and displays its results.
package jws1casestudy.clients.j2me;

// import J2ME packages
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

// import Deitel packages
import jws1casestudy.pricefinder.common.Customer;

class BookPurchaseScreen extends Form {

   PriceQuote priceQuote;

   // create Form for specifying customer information
   BookPurchaseScreen( PriceQuote quote, final Display display )
   {
      super( "Customer info" );
      priceQuote = quote;

      // create TextField to enter first name
      final TextField firstNameField = new TextField( 
         "First name:", "Jon", 15, TextField.ANY );

      // create TextField to enter last name
      final TextField lastNameField = new TextField( 
         "Last name:", "Smith", 15, TextField.ANY ); 

      // create TextField to enter email address
      final TextField emailField = new TextField( 
         "Email Address:", "[e-mail]", 32, 
         TextField.EMAILADDR ); 

      // create TextField to enter street address
      final TextField streetField = new TextField( 
         "Street Address:", "12 Clock Tower Place", 40, 
         TextField.ANY ); 

      // create TextField to enter city
      final TextField cityField = new TextField( 
         "City:", "Maynard", 15, TextField.ANY ); 

      // create TextField to enter state
      final TextField stateField = new TextField( 
         "State:", "MA", 10, TextField.ANY ); 

      // create TextField to enter zip code
      final TextField zipCodeField = new TextField( 
         "Zip code:", "01754", 15, TextField.ANY ); 

      // create TextField to enter country
      final TextField countryField = new TextField( 
         "Country:", "USA", 15, TextField.ANY ); 

      // create TextField to enter credit-card number
      final TextField creditCardField = new TextField( 
         "Credit card number:", "XXXXXXXXXXXX1234", 24, 
         TextField.ANY ); 

      // append TextFields to form
      append( firstNameField );
      append( lastNameField );
      append( emailField );
      append( streetField );
      append( cityField );
      append( stateField );
      append( zipCodeField );
      append( countryField );
      append( creditCardField );

      // create soft button commands
      Command okCommand = new Command( "OK", Command.OK, 0 );
      addCommand( okCommand );

      Command cancelCommand = 
         new Command( "Cancel", Command.CANCEL, 0 );
      addCommand( cancelCommand );

      // allow soft button access
      setCommandListener(
         new CommandListener() {

            // invoked when user presses soft button
            public void commandAction( 
               Command command, Displayable displayable )
            {
               // invoke Book Purchase service if user presses OK
               if ( command.getCommandType() == Command.OK ) {
                  BookPurchaseService purchaseService = 
                     new BookPurchaseService();

                  // create Customer from TextField info
                  Customer customer = new Customer();
                  customer.setFirstName( 
                     firstNameField.getString() );
                  customer.setLastName( 
                     lastNameField.getString() );
                  customer.setEmailAddress( 
                     emailField.getString() );
                  customer.setStreetAddress( 
                     streetField.getString() );
                  customer.setCity( cityField.getString() );
                  customer.setState( stateField.getString() );
                  customer.setZipCode( zipCodeField.getString() );
                  customer.setCountry( countryField.getString() );
                  customer.setCreditCardNumber( 
                     creditCardField.getString() );

                  // invoke Book Purchase Web service
                  purchaseService.placeOrder( priceQuote, 
                     customer );

                  // display results
                  display.setCurrent( new ResultScreen( 
                     display ) );
               }

               // display main screen if user presses Cancel
               else if ( command.getCommandType() == 
                  Command.CANCEL ) {
                  display.setCurrent( new MainScreen( display ) );
               }
            }
         }
      );

   } // end BookPurchaseScreen constructor

   // create Form to display book information
   private class ResultScreen extends Form {

      ResultScreen( final Display display )
      {
         super( "" );
         append( new StringItem( "", "** Book Ordered **\n" ) );
         append( new StringItem( "", 
            "Confirmation will be sent via email" ) );

         // create soft button commands
         Command okCommand = new Command( "OK", Command.OK, 0 );
         addCommand( okCommand );

         // allow soft button access for this Screen
         setCommandListener(
            new CommandListener() {

               // invoked when user presses soft button
               public void commandAction( 
                  Command command, Displayable displayable )
               {
                  // display main screen when user presses button
                  display.setCurrent( new MainScreen( display ) );
               }
            }
         );

      } // end ResultScreen constructor

   } // end class ResultScreen

} // end class BookPurchaseScreen