More on getters and setters

   1  import java.util.Locale;
   2
   3  public class Employee
   4  {   private Name        name;
   5      private EmployeeId  id;
   6      private Money       salary;
   7
   8      public interface Exporter
   9      {   void addName    ( String name   );
  10          void addID      ( String id     );
  11          void addSalary  ( String salary );
  12      }
  13
  14      public interface Importer
  15      {   String provideName();
  16          String provideID();
  17          String provideSalary();
  18          void   open();
  19          void   close();
  20      }
  21
  22      public Employee( Importer builder )
  23      {   builder.open();
  24          this.name   = new Name      ( builder.provideName()     );
  25          this.id     = new EmployeeId( builder.provideID()       );
  26          this.salary = new Money     ( builder.provideSalary(),
  27                                    new Locale("en", "US") );
  28          builder.close();
  29      }
  30
  31      public void export( Exporter builder )
  32      {   builder.addName  ( name.toString()   );
  33          builder.addID    ( id.toString()     );
  34          builder.addSalary( salary.toString() );
  35      }
  36
  37      //...
  38  }
  39  //----------------------------------------------------------------------
  40  // Unit-test stuff
  41  //
  42  class Name
  43  {   private String value;
  44      public Name( String value )
  45      {   this.value = value;
  46      }
  47      public String toString(){ return value; };
  48  }
  49
  50  class EmployeeId
  51  {   private String value;
  52      public EmployeeId( String value )
  53      {   this.value = value;
  54      }
  55      public String toString(){ return value; }
  56  }
  57
  58  class Money
  59  {   private String value;
  60      public Money( String value, Locale location )
  61      {   this.value = value;
  62      }
  63      public String toString(){ return value; }
  64  }

Employee wilma = ...;
JComponentExporter uiBuilder = new JComponentExporter();    // Create the builder
wilma.export( uiBuilder );                                  // Build the user interface
JComponent userInterface = uiBuilder.getJComponent();
//...
someContainer.add( userInterface );

   1  import javax.swing.*;
   2  import java.awt.*;
   3  import java.awt.event.*;
   4
   5  class JComponentExporter implements Employee.Exporter
   6  {   private String name, id, salary;
   7
   8      public void addName  ( String name   ){ this.name = name;     }
   9      public void addID    ( String id     ){ this.id = id;         }
  10      public void addSalary( String salary ){ this.salary = salary; }
  11
  12      JComponent getJComponent()
  13      {   JComponent panel = new JPanel();    
  14          panel.setLayout( new GridLayout(3,2) );
  15          panel.add( new JLabel("Name:  ") );
  16          panel.add( new JLabel( name ) );
  17          panel.add( new JLabel("Employee ID:  ") );
  18          panel.add( new JLabel( id ) );
  19          panel.add( new JLabel("Salary:  ") );
  20          panel.add( new JLabel( salary ) );
  21          return panel;
  22      }
  23  }