- Focused on annotations – reduces the number of classes and interfaces, eliminates the need for a deployment descriptor
- Encapsulation of environmental dependencies and JNDI access: annotations, dependency injection, simple lookup mechanism
- Simpler enterprise bean types
- session beans: business interface can be a plain Java interface
- session beans: no need for a home interface
- entity persistence: Java Persistence API.
- A query language for Java persistence
- session beans and message driven beans: an interceptor facility
- implementation of callback interfaces is not a must
- Java persistence API: provide object relational mapping, can replace Hibernate
- A POJO (Plain Old Java Object) programming model
- A lightweight ORM persistence framework
- Dependency injection
- Metadata annotations
- Configuration by exception
- Elimination of component interfaces
- Elimination of home interfaces
- Reduction of the use of checked exceptions
From: http://sitestree.com/?p=4932
Categories:Java Short Notes
Tags:
Post Data:2009-06-10 02:59:25
Shop Online: https://www.ShopForSoul.com/
(Big Data, Cloud, Security, Machine Learning): Courses: http://Training.SitesTree.com
In Bengali: http://Bangla.SaLearningSchool.com
http://SitesTree.com
8112223 Canada Inc./JustEtc: http://JustEtc.net (Software/Web/Mobile/Big-Data/Machine Learning)
Shop Online: https://www.ShopForSoul.com/
Medium: https://medium.com/@SayedAhmedCanada
