WA1048 EJB Programming with WebSphere Studio Application Developer V4 Course Outline 1. Introduction to WSAD WSAD Family Perspectives and Views Java perspective Web perspective J2EE perspective XML perspective Data perspective Server perspective Debug perspective Help perspective J2EE and Web Tooling XML Tooling Data Tooling 2. Introduction to Web Applications Java Web applications Java Web application architecture J2EE architecture Web application programming model - MVC A scenario of using MVC Typical services provided by application servers IBM WebSphere product family WebSphere Studio Application Developer (WSAD) WebSphere Application Server WebSphere editions Web application development and deployment using WSAD EAR projects EJB projects WSAD testing environment Server perspective Resources configuration Debug mode JNDI explorer J2EE, data, Web and XML tooling Performance and trace tooling Team development 3. Overview Needs for EJB Distributed computing Distributed transaction Distributed security What are EJBs ? Main characteristics of EJBs Foundational technologies of EJBs EJB architecture components EJB client EJB JAR file EJB server EJB container Enterprise JavaBeans Session beans Entity beans EJB classes and interfaces Basic components of entity and session beans EJB home interface An EJB home interface example EJB home object EJB remote interfaces Remote interface example EJB objects EJB implementation class Deployment descriptors How do EJBs work EJB container services EJB application development Deploying enterprise beans Major components of deployed EJBs WebSphere EJB server architecture overview WebSphere EJB server environment 4. Session Beans Session beans Stateless session beans Stateful session beans Components of session beans Home interface for session beans Remote interfaces for session beans The session bean class The ejbCreate() method Business methods Deployment descriptors ejb-jar.xml ibm-ejb-jar-bnd.xmi A simple stateless bean example A simple stateful bean example The session context Session bean life cycle Concurrency issues Invoking session beans from a client application Looking up a home object Create an EJB object Calling business methods WSAD J2EE development environment Developing a session bean using WSAD Adding an EJB project Adding a session EJB Adding fields to the bean Adding methods to the bean Adding business methods to the bean Writing life cycle methods Promoting methods to remote and home interface Deploying EJBs Setting deployment descriptor Generating deployed Code WebSphere Test Environment Run on the server Testing EJBs with the EJB test client in WSAD 5. Entity Beans Entity beans Entity beans components Container Primary key class Home interface Remote interface Entity bean class Entity instance Entity object life cycle Bean instance life cycle Persistence Bean-managed persistence (BMP) Writing a BMP bean A BMP bean example Container-managed persistence (CMP) Writing a CMP bean A CMP bean example Finder helpers Indicating persistent fields Business methods Entity context Writing CMP beans Object-relational mapping Data mapping with BMP Standard CMP field mapping Defining and mapping CMP fields Mapping design in WSAD Meet-in-the-middle A CMP entity bean example Adding CMP fields in the bean Creating a top-down database mapping Adding a BMP entity EJB Setting deployment descriptors EJB editor (ejb-jar.xml) EJB extension editor (ibm-ejb-jar-bnd.xmi, ibm-ejb-jar-ext.xmi) Map editor (Map.mapxmi) 6. EJB Exception Use of Exception Exception types System Exception Application Exception Bean class Container Client Standard Exceptions 7. EJB Transaction Transaction management Object transaction EJB transaction basics Transaction propagation Client-managed transaction Bean-managed transaction Container-managed transaction Transaction outcome Vetoing transaction Transaction isolation Isolation level 8. Security Goals of the EJB Security specification Declarative EJB security EJB Delegation Policy Programmatic EJB security 9. Advanced Concepts Session beans Stateful session beans Session bean from servlet Session bean pooling Entity beans CMP custom finder Select custom finder Where custom finder Method custom finder CMP EJB maintenance Meet-in-the-middle CMP CMP pooling Using access beans Access beans Access bean constructor Generating access beans Access bean examples Connection pooling with EJBs Best practices for EJB development 10. EJB Deployment WebSphere Environment WebSphere HTTP Server plug-in WebSphere Administrative Server User interface WebSphere troubleshooting Workload management and scaling Enterprise JavaBean Overview Deployment descriptors Bean developer entries Application assembler entries EAR file JAR file Install applications Configure applications Update applications 11. J2EE Design Patterns What is a design pattern? Types of design patterns J2EE design patterns and their applicability Session facade Value object Data access object Examples Appendix A. Team Development and Performance Tooling Appendix B. Managing multi-server environments Appendix C. Application tracing and trouble-shooting