Hibernate 3 provides a an extensive but easy-to-use system for vetting data submitted to an entity object.

Presentation - Going Beyond JPA with Hibernate 3

Hibernate 3 is a superset of the JPA. In this session, we look at some of the "added value" extensions offered by Hibernate 3.

• Criteria Queries
• Annotation Extensions
• Validator
• Search
• Shards

Workshop - Register extensions

In the lab, we use the Hibernate validator to prevent "garbage" input.

Story: Values submitted by the Register form must be the correct type, and some values are required.

• Utilize the Hibernate Validator to confirm input with annotations

Prerequisites

• @NotEmpty
• @Email
• @Length

Exercises

• Use Hibernate Validator classes (org.hibernate.validator.*) to annotate the User entity to realize the extensions to the Register Use Case
  • Username and Password are required
  • Password length must be at least 4 characters and no more than 10
  • Full Name is required
  • From Address and Reply To Addresses must be email addresses
• Write unit tests to prove the validations work!

Hint code

Accomplishments

• Utilized the Hibernate Validator to confirm input with annotations

Extra Credit

• Annotate and test Subscription and Protocol
• Use the @ForeignKey annotation to give the Derby constraints sensible names
• Use @GeneratedValue to create UUIDs for the User, Subscription, and Protocol IDs.