Add delete method

application/module-exercise/src/main/java/org/fuseri/moduleexercise/common/DomainRepository.java

@@ -47,9 +47,11 @@ public interface DomainRepository<T, ID> {
     T update(T entity);
 
     /**
-     * Delete entity with the specified ID
+     * Delete the entity with the specified id
+     * Note that this does not do cascade deleting.
+     * We will have cascade deleting with usage of JpaRepository
      *
-     * @param id the ID of the entity to be deleted
+     * @param id the id of the entity to be deleted
      */
     void deleteById(ID id);
 }
\ No newline at end of file

application/module-exercise/src/main/java/org/fuseri/moduleexercise/common/DomainRepositoryImpl.java

@@ -93,9 +93,11 @@ public abstract class DomainRepositoryImpl<T extends DomainObject> implements Do
     }
 
     /**
-     * Delete entity with the specified ID
+     * Delete the entity with the specified id
+     * Note that this does not do cascade deleting.
+     * We will have cascade deleting with usage of JpaRepository
      *
-     * @param id the ID of the entity to be deleted
+     * @param id the id of the entity to be deleted
      */
     @Override
     public void deleteById(String id) {

application/module-exercise/src/main/java/org/fuseri/moduleexercise/common/DomainService.java

@@ -38,4 +38,12 @@ public abstract class DomainService<T extends DomainObject> {
     public T update(T entity) {
         return getRepository().update(entity);
     }
+
+    /**
+     * Delete an entity with specified id
+     * @param id id of the entity to delete
+     */
+    public void delete(String id) {
+        getRepository().deleteById(id);
+    }
 }
\ No newline at end of file