The training covers two most important parts of Java EE used for programming business logic: Enterprise Java Beans (EJB) and Java Persistence API (JPA) entities.

The training is for:

• programmers that create multi-layered, distributed applications,
• architects and designers of enterprise systems.

Prerequisites:

• knowledge of Java and object-oriented programming,
• prior participation in the training "Introduction to Java 5.0" is recommended,
• basic knowledge of databases and SQL.

By the end of the training participants will have learned:

• how to serialize objects with JPA,
• how to create EJB components and when to use them,
• advantages of multi-layered architecture,
• typical problems that occur during creation of server-side applications, as well as their standard solutions.

Training duration: 3 days.

Methodology: lectures and exercises. A lot of practical examples are presented, discussed, tested and extended by the trainees. Trainees actively participate in the training.

Training outline:

Day 1.

1. Persistence of data in Java.
2. Using Java Persistence API (JPA) entities, synchronization with a database, uniqueness of entities, comparing entities, life-cycle and callback methods.
3. Representing class hierarchies in a database, inheritance, polymorphism, composition.
4. EJB-QL queries.

Day 2.

1. Introduction to multi-layered architecture and distributed applications.
2. Component types in Enterprise Java Beans 3.0 (EJB).
3. Stateful and stateless Session Beans.
4. Life-cycle and callback methods.
5. Combining Session Beans and JPA entities.
6. Transactions, performance.
7. Protecting EJB components, roles.
8. Patterns and anti-patterns.

Dzień 3.

1. Introduction to JNDI and Dependency injection.
2. Asynchronous communication with messages in Point-to-Point and Publish-Subscribe models.
3. Java Message Service (JMS).
4. Message Driven Beans (MDB).
5. Confirming messages, transactions and security.