Be productive developing Enterprise AJAX Applications

Javier Paniza

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Top Stories by Javier Paniza

A notable problem of Java Enterprise Development is its inherent complexity. Also if you use Java EE standard or Spring, your development team will never be as productive as a VisualBasic, PHP, Ruby&Rails, 4GL or even COBOL development team. The complexity of Java Enterprise requires very skilled developers, moreover these developers need to write a lot of code. The ideal solution for this problem could be the Model-Driven Development approach. Basically MDD states that just the model part of an application has to be developed, and the rest of the application will be generated from this model. In this way, the developers write less and simpler code, nevertheless a Java Enterprise Application is created. However, for today, MDD usage is still very complex. It needs a big investment of time, expertise, and tooling; usually building your own DSLs and combining them into ... (more)

Java Kicks Ruby on Rails in the Butt

This article tries to demonstrate that Java can be more productive than Ruby. We are going to develop the same application of the article Rolling with Ruby on Rails Revisited (part 1 [1] and part 2 [2]) but using POJO [3]s annotated with JPA [4] and a Model Driven Framework, OpenXava [5] in this case. The result is that with less code, and less time you obtain a more powerful application. Ruby and rails: The regressive framework Ruby on rails [6] is so elegant, so easy, so productive. I cannot avoid read and heard continuously these comments. For example, the article Rolling with ... (more)

Are the JPA Callback Methods Useful?

Definitely no. The section 3.5 of JPA specification states: "In general, the lifecycle method of a portable application should not invoke EntityManager or Query operations, access other entity instances, or modify relationships within the same persistence context. A lifecycle callback method may modify the non-relationship state of the entity on which it is invoked." Surely these restrictions have a good technical reason behind them, but from a business application developer perspective they mean that JPA callback methods are practically useless. For example, these scenarios are... (more)

OpenXava 4.3: Rapid Java Web Development

OpenXava is a framework for Rapid Java Web Development, well-suited for business and database oriented applications. OpenXava allows you develop applications just by writing simple domain classes with Java or Groovy. The user interface is generated automatically in runtime, without code generation. OpenXava 4.3 adds support for total properties in collections, it has a new editor for HTML_TEXT stereotype, add info and warning messages and some other useful new features. Total properties in collections Now you can use square brakets in @ListProperties to asociate one or more prop... (more)

OpenXava 4.3: Desarrollo Rápido Java para aplicaciones Web

OpenXava es una herramienta para el Desarrollo Rápido de aplicaciones Web, apropiada para aplicaciones de gestión y orientadas a bases de datos. OpenXava permite desarrollar aplicaciones simplemente escribiendo clases del dominio con Java o Groovy. La interfaz de usuario se genera automáticamente en tiempo de ejecución, sin generación de código. OpenXava 4.3 añade soporte para propiedades totales en las colecciones, tiene un nuevo editor para el esterotipo TEXTO_HTML, añade mensaje de información y advertencia y muchas otras nuevas características. Propiedades totales en coleccione... (more)