anchor.diff:  public class PersonRepository implements PanacheRepository<Person> {
   
      // put your custom logic here as instance methods
  -   
  +
      public Person findByName(String name){
        return find("name", name).firstResult();
      }
  -   
  +
      public List<Person> findAlive(){
        return list("status", Status.Alive);
      }
  -   
  +
      public void deleteStefs(){
        delete("name", "Stef");
     }
  
positive.code: if(person.isPersistent()){
    // delete it
    person.delete();
  } 
  
  // getting a list of all Person entities
  List<Person> allPersons = Person.listAll();
  
negative.code: - `<singleColumnName>` (and single parameter) which will expand to `from EntityName where <singleColumnName> = ?`
  - `<query>` will expand to `from EntityName where <query>`
  
  NOTE: You can also write your queries in plain
  link:https://docs.jboss.org/hibernate/orm/5.4/userguide/html_single/Hibernate_User_Guide.html#hql[HQL]:
  
  [source,java]
  