Merge branch 'xmozolak/country-improvements' into 'main'

feat: Country entity improvements

See merge request !15

src/main/java/cz/fi/muni/pa165/seminar4/group7/secretservice/entity/Country.java

 package cz.fi.muni.pa165.seminar4.group7.secretservice.entity;
 
 import com.sun.istack.NotNull;
+import lombok.AccessLevel;
 import lombok.Getter;
 import lombok.Setter;
+import lombok.experimental.Accessors;
 
 import javax.persistence.*;
-import java.util.List;
+import java.util.HashSet;
 import java.util.Objects;
+import java.util.Set;
 
 /**
  * @author Milan Mozolak
  */
 @Entity
+@Getter
+@Setter
+@Accessors(chain = true)
 public class Country {
     @Id
     @Column(name = "id", nullable = false)
     @GeneratedValue(strategy = GenerationType.IDENTITY)
-    @Getter
-    @Setter
     private Long id;
 
     @NotNull
     @Column(nullable = false)
-    @Getter
-    @Setter
     private String code;
 
     @NotNull
     @Column(nullable = false)
-    @Getter
-    @Setter
     private String name;
 
     @NotNull
     @Column(nullable = false)
-    @Getter
-    @Setter
     private String demographics;
 
     @NotNull
     @Column(nullable = false)
-    @Getter
-    @Setter
     private String geography;
 
     @NotNull
     @Column(nullable = false)
-    @Getter
-    @Setter
     private String communications;
 
     @NotNull
     @Column(nullable = false)
-    @Getter
-    @Setter
     private String government;
 
     @NotNull
     @Column(nullable = false)
-    @Getter
-    @Setter
     private String economy;
 
     @NotNull
     @Column(nullable = false)
-    @Getter
-    @Setter
     private String military;
 
-    @Getter
-    @Setter
+    @Setter(AccessLevel.NONE)
     @OneToMany(mappedBy = "country")
-    private List<Mission> missions;
+    private Set<Mission> missions = new HashSet<>();
+
+    public void addMission(Mission mission) {
+        missions.add(mission);
+        mission.setCountry(this);
+    }
+
+    public void removeMission(Mission mission) {
+        missions.remove(mission);
+        mission.setCountry(null);
+    }
 
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;
         if (o == null || getClass() != o.getClass()) return false;
-
         Country country = (Country) o;
-
-        return id.equals(country.id) && code.equals(country.code);
+        return code.equals(country.code);
     }
 
     @Override
     public int hashCode() {
-        return Objects.hash(id, code);
+        return Objects.hash(code);
     }
 }