[java][booking][04_tell_dont_ask] Move logic inside DateRange

Author: rgomezcasas

examples/java/java-booking-04_tell_dont_ask/src/main/java/tv/codely/booking/Booking.java

@@ -27,18 +27,14 @@ public Booking(
     }
 
     public BookingStatus statusFor(LocalDateTime date) {
-        if (date.isBefore(dateRange.startDate())) {
+        if (dateRange.isAfter(date)) {
             return BookingStatus.NOT_STARTED;
         }
 
-        if (isBetween(date, dateRange)) {
+        if (dateRange.isBetween(date)) {
             return BookingStatus.ACTIVE;
         }
 
         return BookingStatus.FINISHED;
     }
-
-    private boolean isBetween(LocalDateTime date, DateRange dateRange) {
-        return date.isAfter(dateRange.startDate()) && date.isBefore(dateRange.endDate());
-    }
 }

examples/java/java-booking-04_tell_dont_ask/src/main/java/tv/codely/booking/DateRange.java

@@ -11,11 +11,11 @@ public DateRange(LocalDateTime startDate, LocalDateTime endDate) {
         this.endDate   = endDate;
     }
 
-    public LocalDateTime startDate() {
-        return startDate;
+    public boolean isBetween(LocalDateTime date) {
+        return date.isAfter(startDate) && date.isBefore(endDate);
     }
 
-    public LocalDateTime endDate() {
-        return endDate;
+    public boolean isAfter(LocalDateTime date) {
+        return date.isBefore(startDate);
     }
 }