Release your entities
This post shows how to clean JPA entities out of Persistence Context overhead when you need to use them outside of container, serialize them and send them over RMI, SOAP and other protocols to another JVMs. The Problem You may found yourself in a situation where you don’t have DTO’s, there existing object-graph is a [...]
Java EE 5 vs Java EE 6
This post visualizes changes between Java EE Standards 5 and 6. The comparison of standards is listed in four sections Web-Services, Web-Container, Enterprise Application technologies and Maintenance. Hope this helps someone. Web Service related changes Java EE 5 (JSR-244) Java EE 6 (JSR-316) JAX-RPC 1.1 JSR 101 JAX-RPC 1.1 Enterprise Web Services 1.2 JSR 109 Enterprise Web Services 1.3 [...]
First Look at Java Persistence API (JPA)
The Java Persistence API page on java.sun.com describes the Persistence API as: The Java Persistence API provides a POJO persistence model for object-relational mapping. The Java Persistence API was developed by the EJB 3.0 software expert group as part of JSR 220, but its use is not limited to EJB software components. It can also [...]