[java][booking][02_parameter_object] Introduce DateRange parameter object

Author: rgomezcasas

examples/java/java-booking-02_introduce_parameter_object/src/main/java/tv/codely/booking/Booking.java

@@ -17,8 +17,7 @@ public final class Booking {
 
     public Booking(
         BookingId id,
-        LocalDateTime startDate,
-        LocalDateTime endDate,
+        DateRange bookingDateRange,
         CustomerId customerId,
         CustomerName customerName,
         EmailAddress customerEmail,
@@ -29,8 +28,8 @@ public Booking(
         TaxValue taxValue
     ) {
         this.id            = id;
-        this.startDate     = startDate;
-        this.endDate       = endDate;
+        this.startDate     = bookingDateRange.startDate();
+        this.endDate       = bookingDateRange.endDate();
         this.customerId    = customerId;
         this.customerName  = customerName;
         this.customerEmail = customerEmail;

examples/java/java-booking-02_introduce_parameter_object/src/main/java/tv/codely/booking/DateRange.java

@@ -0,0 +1,21 @@
+package tv.codely.booking;
+
+import java.time.LocalDateTime;
+
+public final class DateRange {
+    private final LocalDateTime startDate;
+    private final LocalDateTime endDate;
+
+    public DateRange(LocalDateTime startDate, LocalDateTime endDate) {
+        this.startDate = startDate;
+        this.endDate   = endDate;
+    }
+
+    public LocalDateTime startDate() {
+        return startDate;
+    }
+
+    public LocalDateTime endDate() {
+        return endDate;
+    }
+}

examples/java/java-booking-02_introduce_parameter_object/src/test/java/tv/codely/booking/BookingShould.java

@@ -16,8 +16,7 @@ void get_the_correct_status_when_the_booking_has_not_started_yet() {
 
         var booking = new Booking(
             new BookingId("2c1e34d0-1430-4307-80bf-a71761f71390"),
-            bookingStartDate,
-            bookingEndDate,
+            new DateRange(bookingStartDate, bookingEndDate),
             new CustomerId("72cf3524-7838-45f3-8179-2e75abe5e81c"),
             new CustomerName("Perico Los Palotes"),
             new EmailAddress("perico.los.palotes@mail.com"),
@@ -40,8 +39,7 @@ void get_the_correct_status_when_the_booking_is_currently_active() {
 
         var booking = new Booking(
             new BookingId("2c1e34d0-1430-4307-80bf-a71761f71390"),
-            bookingStartDate,
-            bookingEndDate,
+            new DateRange(bookingStartDate, bookingEndDate),
             new CustomerId("72cf3524-7838-45f3-8179-2e75abe5e81c"),
             new CustomerName("Perico Los Palotes"),
             new EmailAddress("perico.los.palotes@mail.com"),
@@ -64,8 +62,7 @@ void get_the_correct_status_when_the_booking_is_finished() {
 
         var booking = new Booking(
             new BookingId("2c1e34d0-1430-4307-80bf-a71761f71390"),
-            bookingStartDate,
-            bookingEndDate,
+            new DateRange(bookingStartDate, bookingEndDate),
             new CustomerId("72cf3524-7838-45f3-8179-2e75abe5e81c"),
             new CustomerName("Perico Los Palotes"),
             new EmailAddress("perico.los.palotes@mail.com"),