test v2

src/fr/api/Configuration.java

@@ -1,18 +1,13 @@
 package src.fr.api;
 import java.util.Set;
+import java.util.Optional;
+
 public interface Configuration {
-
-
-    /*
-     * @return true if there is no compatibility issue between PartType else false
-     */
     boolean isValid();
-
-
     boolean isComplete();
-    Set<PartType> getSelectedParts();
+    public Set<Part> getSelectedParts(); 
+    public Optional<Part> getSelectionForCategory(Category category); 
     void selectPart(PartType chosenPart);
-    PartType getSelectionForCategory(Category category);
     void unselectPartType(Category categoryToClear);
     void clear();
 }