Java Persistence API (JPA) Practice Exam
Java Persistence API (JPA) Practice Exam
About Java Persistence API (JPA) Exam
The Java Persistence API (JPA) Certification shows your ability to work with object-relational mapping (ORM) in Java applications. It proves that you can manage databases, map Java objects to database tables, and perform CRUD operations using JPA. This certification helps job seekers stand out in backend development, enterprise Java applications, and API integration roles. It adds value to your resume and increases your chances of getting hired by companies using Java EE and Spring frameworks. JPA skills are in demand for roles such as Java Developer, Backend Engineer, and Software Developer working with data-driven systems.
Who should take the Exam?
This exam is ideal for:
- Java Developers
- Backend Developers
- Spring Boot Developers
- API Developers
- Software Engineers
- Java EE Professionals
- Technical Architects
- Application Developers using ORM tools
- Computer Science Graduates
- Candidates working on enterprise data solutions
Skills Required
- Understanding of ORM (Object Relational Mapping) concepts
- Mapping Java classes to database tables using annotations
- Handling one-to-one, one-to-many, and many-to-many relationships
- Executing JPQL and native SQL queries
- Managing entity lifecycle states
- Configuring persistence units
- Performing transactions and handling exceptions
- Working with JPA in Java EE or Spring context
- Handling lazy vs eager loading
- Best practices in data persistence and performance tuning
Knowledge Gained
- How to connect Java applications with relational databases
- Writing entity classes using annotations
- Managing data using JPA repositories
- Querying with JPQL and Criteria API
- Building scalable, data-driven Java applications
- Handling relationships between entities
- Ensuring data integrity and efficient data access
- Using JPA with frameworks like Spring Boot or Java EE
- Implementing transactional logic
- Troubleshooting persistence issues
Course Outline
The Java Persistence API (JPA) Exam covers the following topics -
Domain 1 - Introduction to JPA
- What is JPA?
- JPA vs Hibernate vs JDBC
Domain 2 - Entity Classes and Annotations
- @Entity, @Id, @Table, @Column
- POJO mapping to database tables
Domain 3 - Relationships and Mappings
- One-to-One, One-to-Many, Many-to-Many
- @JoinColumn, @MappedBy, @Cascade
Domain 4 - JPQL and Native Queries
- Writing JPQL (Java Persistence Query Language)
- Named queries and dynamic queries
- Using native SQL queries
Domain 5 - Entity Lifecycle and Persistence Context
- Persist, Merge, Remove, Detach
- States: Transient, Managed, Detached, Removed
Domain 6 - Transactions and Exception Handling
- Transaction management with @Transactional
- Rollback and commit operations
- Handling persistence exceptions
Domain 7 - Fetching Strategies
- Lazy vs Eager loading
- Performance implications
Domain 8 - Embeddables and Inheritance
- @Embeddable, @Embedded
- Table-per-class, joined, and single table inheritance
Domain 9 - Integrating JPA with Java EE and Spring Boot
- Configuration in persistence.xml
- Spring Data JPA basics
Domain 10 - Performance and Best Practices
- Caching, batch operations
- Avoiding N+1 query problem
- Indexing and optimization
