Developing Applications for the Java EE 7 Platform Ed 1 — Lesson 1: Platform Architecture, CDI, and JPA Persistence

Technical Scope

• Java EE containers, modules, packaging, lifecycle, dependency boundaries, and deployment descriptors
• CDI scopes, injection, qualifiers, producers, interceptors, decorators, and events
• JPA entities, relationships, persistence context, JPQL, locking, and fetch strategy
• transaction boundaries, validation, persistence exceptions, and data consistency testing

Instructor Demonstration

The instructor traces Java EE containers, modules, packaging, lifecycle, dependency boundaries, and deployment descriptors, then connects it to CDI scopes, injection, qualifiers, producers, interceptors, decorators, and events. The demonstration captures the exact configuration, transaction, command, query, log, or screen evidence needed to prove intended behavior and the applicable control boundary.

Applied Workshop

Learners complete a controlled exercise that applies CDI scopes, injection, qualifiers, producers, interceptors, decorators, and events and JPA entities, relationships, persistence context, JPQL, locking, and fetch strategy. The exercise introduces a realistic exception related to transaction boundaries, validation, persistence exceptions, and data consistency testing and requires a reversible correction supported by before-and-after evidence.

1. Confirm scope, identities, data, dependencies, controls, and expected result.
2. Perform the product-specific configuration or analysis and record exact steps.
3. Validate functional behavior, security, data integrity, and operational observability.
4. Introduce the defined failure condition, diagnose the cause, and apply a safe correction.
5. Document rollback, acceptance evidence, unresolved risk, and ownership.

Validation Standard

Acceptance requires accurate handling of JPA entities, relationships, persistence context, JPQL, locking, and fetch strategy, traceable proof for Java EE containers, modules, packaging, lifecycle, dependency boundaries, and deployment descriptors, and a repeatable recovery path for transaction boundaries, validation, persistence exceptions, and data consistency testing. Results must be understandable to both implementers and operational support teams.

Failure Analysis

Learners compare symptoms, logs, state, dependencies, and recent changes when transaction boundaries, validation, persistence exceptions, and data consistency testing occurs. The final diagnosis must separate the immediate fix from the preventive control.

Practical Outcome

The completed output is a tested platform architecture, cdi, and jpa persistence implementation or analysis, with validation evidence, troubleshooting notes, rollback guidance, and a concise operational handover.