透明思考

What's New in Spring 1.1- -

                                      

• IoC container supports Method Injection: the overriding of concrete or abstract methods, typically to look up a dependency managed by the container. This means even less need to implement Spring-specific interfaces such as BeanFactoryAware.
• The IoC container can now obtain objects from static factory methods as well as constructors. This enhancement allows excellent AspectJ integration: it is now possible to configure AspectJ aspects using Spring Dependency Injection, like any object. We plan to provide examples of AspectJ integration before 1.1 final.
• Support for sending and receiving JMS messages
• Support for Apache OJB as an ORM alternative, within Spring's consistent data access abstraction
• Significantly improved JDO support
• Greater flexibility in translating SQLExceptions, and other JDBC enhancements
• Support for nested transactions and savepoints when working with JDBC. Declarative transaction management can support nested transactions.
• AOP proxies are now serializable if all Advisors and target are serializable
• Improved Velocity and FreeMarker support
• Reworked parent/child bean definition concept: a child can now override any inherited settings. This can be used to simplify configuration.

 

请注意我加上粗体的地方。Rod Johnson是一个实用至上的程序员，再一次得到验证。“从静态工厂方法获得对象”是一个重要的新特性。遗留代码中有很多工厂和Singleton，Spring 1.1可以更加直接简便地整合它们。这是一个典型的实用至上的tradeoff，虽然Singleton不是一个优雅的设计，但有必要整合它们，而不是做更多的重构。

- 作者： gigix 2004年07月29日, 星期四 08:52