Front-end Apps: POJO, EJB, & EJB Lite

Java EE 7    |    Intermediate
  • 10 Videos | 35m 30s
  • Includes Assessment
  • Earns a Badge
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A Java application contains business logic and services layers. Discover how to implement business logic using POJOS, EJBs, and EJB-Lite, and explore the features and use of session beans.

WHAT YOU WILL LEARN

  • describe the layers that comprise a Java EE application
    define and contrast Java POJOs, EJBs, and EJB-Lite
    describe the Java EJB API
    compare stateful, stateless, and singleton session beans in Java EE applications
    describe the steps in creating a session bean
  • describe stateful and stateless session bean life cycles
    describe timer-based and asynchronous method invocation for session beans and describe the use of SessionContext
    describe the use of JNDI names for EJB components
    invoke a session bean from a servlet to download media items as thumbnails in a Java EE application
    use a singleton session bean to cache data in a Java EE application

IN THIS COURSE

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