A Java application contains presentation business logic and services layers. Business logic can be implemented using POJOS (plain old Java objects) or EJBs (enterprise java beans). EJB-Lite is a subset of the EJB specification. This course will contrast these three technologies and explore the features and use of session beans in EJB. Most business applications need to persist data. In this course, you will be introduced to the Java Persistence API, a lightweight framework that leverages Plain Old Java Objects (POJOs) for persisting Java objects that represent relational data. The course will cover JPA entities and entity mapping, the role of the Entity Manager, and using JPA queries. The course will include demonstration and practice in configuring data persistence in Java EE applications.
Java developers who want to learn how to use Java EE 7 components to build front-end enterprise web applications