equals method for recipes and more

src/main/java/mi/hdm/recipes/Recipe.java

@@ -13,7 +13,7 @@ public class Recipe implements RecipeComponent {
     private String description;
     private List<String> preparation;
     private List<Category> categories;
-    private Integer preparationTimeMins;
+    private int preparationTimeMins;
     private NutritionTable nutritionTable;
     private final LocalDateTime creationTime;
 
@@ -33,7 +33,7 @@ public class Recipe implements RecipeComponent {
             String description,
             List<String> preparation,
             List<Category> categories,
-            Integer preparationTimeMins) {
+            int preparationTimeMins) {
 
         //Das ruft den anderen Konstruktor dieser Klasse auf (siehe unten)
         this(name, ingredients, description, preparation, categories, preparationTimeMins, NutritionCalculator.calculateNutritionTable(ingredients));
@@ -56,7 +56,7 @@ public class Recipe implements RecipeComponent {
             String description,
             List<String> preparation,
             List<Category> categories,
-            Integer preparationTimeMins,
+            int preparationTimeMins,
             NutritionTable nutritionTable) {
 
         if (ingredients == null || ingredients.size() == 0) {
@@ -68,17 +68,14 @@ public class Recipe implements RecipeComponent {
         if (preparation == null || preparation.isEmpty()) {
             throw new InvalidRecipeException("Preparation can not be null or empty");
         }
-        if (categories == null) {
-            categories = new ArrayList<>();
-        }
 
         this.ingredients = ingredients;
         this.name = name;
         this.description = description;
         this.preparation = preparation;
-        this.categories = categories;
-        this.preparationTimeMins = preparationTimeMins;
         this.nutritionTable = nutritionTable;
+        setPreparationTimeMins(preparationTimeMins);
+        setCategories(categories);
 
         this.creationTime = LocalDateTime.now();
     }
@@ -115,6 +112,10 @@ public class Recipe implements RecipeComponent {
     }
 
     public void setCategories(List<Category> categories) {
+        if (categories == null) {
+            categories = new ArrayList<>();
+        }
+
         this.categories = categories;
     }
 
@@ -122,7 +123,7 @@ public class Recipe implements RecipeComponent {
         categories.add(category);
     }
 
-    public Integer getPreparationTimeMins() {
+    public int getPreparationTimeMins() {
         return preparationTimeMins;
     }
 
@@ -147,4 +148,16 @@ public class Recipe implements RecipeComponent {
     public NutritionTable getNutritionTable() {
         return nutritionTable;
     }
+
+    public Map<RecipeComponent, Integer> getIngredients() {
+        return ingredients;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (o instanceof Recipe r) {
+            return r.getName().equals(this.name);
+        }
+        return false;
+    }
 }