Author of POJOs in Action
Chris Richardson is a developer, architect and mentor with over 20 years of experience and is the author of the recently published book "POJOs in Action". He runs a consulting company that helps development teams become more productive and successful by adopting POJOs and lightweight frameworks. Chris has been a technical leader at a variety of companies including Insignia Solutions and BEA Systems. Chris has a computer science degree from the University of Cambridge in England. He lives in Oakland, CA with his wife and three children.Presentations by Chris Richardson
Comparing EJB 3 with Spring and Hibernate
The limitations of EJB2 led to the development of the extremely popular Spring and Hibernate frameworks. These frameworks replaced the cumbersome EJB2 programming model with a nimble, non-invasive Plain Old Java Object (POJO) –based model. But, now, the EJB3 specification has embraced many of the ideas made popular by Spring and Hibernate including POJOs, transparent persistence and dependency injection.Business logic organization and encapsulation strategies
Key to making good design decisions is knowing the available options and understanding their respective benefits and drawbacks. This presentation looks at two important design decisions that you must make when developing the business logic for an enterprise Java application: how to organize the business logic and how to encapsulate the business logic.The first part of the talk describes the two main ways to organize business logic: an object-oriented design (a.k.a domain model) and a procedural design (a.k.a. transaction script). You will learn how to implement the business logic using each of these approaches and which lightweight frameworks to use. We will cover the criteria that you can use to decide between the two approaches.
Developing Rich Domain Models
Object-oriented design (OOD) is good way to tackle the complexity of modern applications. Yet many complex, enterprise Java applications are written in a procedural style. One reason is because EJB2 created too many obstacles to using object-oriented design techniques. Fortunately, enterprise Java technologies have improved. Plain Object Java Objects (POJOs) and object/relational mapping frameworks such as Hibernate, JDO and EJB3 led to the revival of OOD.Books by Chris Richardson
by Chris Richardson
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There is agreement in the Java community that EJBs often introduce more problems than they solve. Now there is a major trend toward lightweight technologies such as Hibernate, Spring, JDO, iBATIS, and others, all of which allow the developer to work directly with the simpler Plain Old Java Objects, or POJOs. Bowing to the new consensus, EJB 3 now also works with POJOs.
POJOs in Action describes these new, simpler, and faster ways to develop enterprise Java applications. It shows you how to go about making key design decisions, including how to organize and encapsulate the domain logic, access the database, manage transactions, and handle database concurrency.
Written for developers and designers, this is a new-generation Java applications guide. It helps you build lightweight applications that are easier to build, test, and maintain. The book is uniquely practical with design alternatives illustrated through numerous code examples. - Available At: http://www.manning.com/books/crichardson
Latest entries from chris-richardson.blog-city.com
Monday, December 10, 2007
This Wednesday I'm off to the Spring Experience where I am giving a couple of presentations on building and testing rich domain models. I'm excited about going for a few different reasons.
Monday, November 12, 2007
Today, I was reminded why it's a good idea to end a programming session with a failing test (suggested by Kent Beck in his TDD book). Last week I went to the excellent QCon conference and hadn't worked on my client's application sinceTuesday. As you
Tuesday, November 6, 2007
At SpringOne 2007 I gave two talks. The first was on improving application design with a rich domain model. The second was on building applications with the Spring framework. The video of that presentation is now available.
Wednesday, October 17, 2007
It's a busy three weeks. This week I'm focussed on developing my client's application. But last week I was in Dallas teaching the 3 day version of my POJO development class . And, next week I'll be at the Colorado Software Summit.
