Complete the following code, with the correct Java Bean validation annotation, so that the attribute title has a minimum length of 2 and a maximum length of 40:

@Entity @Table( name="books")
public class Book {
  @________________________
  private String title;
}

Which validation annotations are needed for requiring a (not-null) value for an attribute both in the Java EE model layer and in the database of an app?

Complete the following code for defining a @LessThan100YearsOld annotation that checks if a given Date attribute value does not date back more than 100 years and the Java implementation class is LessThan100YearsOldImpl:

@Target( ElementType.________________ )
@Constraint( validatedBy = ______________________________)
public @interface LessThan100YearsOld {
  String message() default "The date must not be older than 100 years!";
}
public class LessThan100YearsOldImpl implements 
    ConstraintValidator<LessThan100YearsOld, _____________________> {
  @Override public void initialize( LessThan100YearsOld arg0) { ... }
  @Override public boolean isValid( Date date, ConstraintValidatorContext context) { ... }
}

Complete the following JSF snippet such that the title attribute value of the entity book is validated by the custom method Book::checkTitle:

<h:form id="createBookForm">
  ...
  <h:outputLabel value="Title: ">
    <h:inputText id="title" value="#{book.title}" 
       ______________="#{__________________________}" />
  </h:outputLabel>
  ... 
</h:form>       

Complete the following JSF snippet, such that any (possible) error messages resulting from validating the title attribute value of the book entity are displayed in the user interface:

<h:form id="createBookForm">
  ...
  <h:outputLabel for="title" value="Title: ">
    <h:inputText id="title" value="#{book.title}" />
  </h:outputLabel>
  <h:__________________ for="_______________" errorClass="error" />
  ...
</h:form>