Speaker Topics - No Fluff Just Stuff
NFJS2025

Java EE Command Pattern Architecture

Tired of dealing with EJBs but cannot use other frameworks like Spring? How would you like to replace all of your remote Stateless Session Beans with POJOs and still access them remotely within Java EE? By using the Java EE Command Pattern we can write EJBs as POJOs and solve many of the issues facing EJB, including testability, configuration complexity, and performance, and still remain within the boundaries of the Java EE container. The Java EE Command Pattern is a simple pattern that can significantly reduce the complexity of large-scale Java EE enterprise applications. In this session we will explore the numerous issues facing a typical EJB architecture and learn how the use of the Java EE Command Pattern can solve these issues. We will walk through the different design alternatives and see how the command pattern is implemented in both EJB3 and in Spring. Through interactive coding examples you will learn what components make up the Command Pattern framework and what simple coding changes are required to convert a complex remote EJB-based application to a much simpler remote POJO-based application.

Agenda

  • Issues with J2EE
  • Java EE Command Pattern Introduction
  • Java EE Command Pattern Core Components
  • The Command Pattern Framework Implementation (EJB)
  • The Command Pattern Framework Implementation (Spring/RMI)
  • Applying the Command Pattern to a Typical EJB Application

Mark Richards

About Mark Richards

Mark Richards is an experienced, hands-on software architect involved in the architecture, design, and implementation of microservices architectures, service-oriented architectures, and distributed systems. He has been in the software industry since 1983 and has significant experience and expertise in application, integration, and enterprise architecture. Mark is the founder of DeveloperToArchitect.com, a website devoted to helping developers in the journey to software architect. He is the author of numerous technical books and videos, including the recently published Fundamentals of Software Architecture, Microservices AntiPatterns and Pitfalls, Microservices vs. SOA, the Software Architecture Fundamentals video series, The Enterprise Messaging video series, Java Message Service, 2nd Edition, and contributing author to 97 Things Every Software Architect Should Know. Mark has a master’s degree in computer science and is a regular conference speaker at the No Fluff Just Stuff (NFJS) Symposium Series. He has spoken at hundreds of conferences and user groups around the world on a variety of enterprise-related technical topics.

More About Mark »