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The Spring Framework
- 1. The Spring Framework @maxgoff BIG SMART DATA
- 2. The Spring Framework: BIG SMART DATA ⁻ What is Spring ⁻ Modules ⁻ Spring MVC
- 3. What is Spring? ̵ Comprehensive Programming/Config model ̵ Modern Java-based (JVM) Enterprise ̵ Focus: Lightweight & “Plumbing” ̵ Flexible Dependency Injection ̵ Infrastructure (support) for declarative: ̵ transactions ̵ caching ̵ validation ̵ formatting BIG SMART DATA Spring Origin: Rod Johnson (Expert One-on-One J2EE Design and Development)
- 4. What is Spring? ̵ Powerful abstractions: ̵ JDBC, JPA, JTA, JMS ̵ Support for open source frameworks: ̵ Hibernate, Quartz ̵ Flexible Web Framework for RESTful MVC ̵ Rich testing facilities BIG SMART DATA
- 5. ⁻ Modular in design ⁻ Incremental adoption ⁻ Range of deployment platforms, such as Tomcat & WebSphere ⁻ Citizen of major clouds such as Heroku, VMware, & Amazon What is Spring? BIG SMART DATA
- 6. • Dependency Injection • Aspect-oriented programming • Data access framework • Transaction management framework • Remote access framework • Convention-over-configuration • Model-view-controller framework BIG SMART DATA Spring Modules
- 7. • Inversion of control container • Uses Java Reflection • Creates managed objects (“beans”) • Dependency Lookup • Dependency Injection Patterns: • Constructors • Properties • Factories BIG SMART DATA Dependency Injection Spring Modules
- 8. BIG SMART DATA Dependency Injection Spring Modules The Spring Container Fully configured system Configuration Metadata Your Business Objects (POJOs) produces
- 9. • AOP: • increases modularity • allows for separation of cross- cutting concerns BIG SMART DATA Aspect-oriented framework Spring Modules
- 10. • Resource management • Exception handling • Transaction participation • Resource unwrapping • Abstraction BIG SMART DATA Data access framework Spring Modules
- 11. • Spring brings transaction abstractions: • global, local, nested • Platform TransactionManager • Transaction Template • metadata or Java annotations BIG SMART DATA Transaction management framework Spring Modules
- 12. • Abstraction for various RPC technologies BIG SMART DATA Remote access framework Spring Modules Convention-over-configuration • Spring Roo (http://www.springsource.org/spring-roo)
- 13. • Request-based framework • Strategy interfaces • GOAL: Simple and clear BIG SMART DATA MVC Framework Spring Modules
- 14. • Front Controller: DispatcherServlet Class BIG SMART DATA MVC Framework Spring Modules
- 15. • Clear separation of roles: Each role (controller, validator, command object, DispatcherServlet, etc) can be fulfilled by a specialized object • Configuration of both framework and application classes as JavaBeans: BIG SMART DATA MVC Framework Spring Modules
- 16. • Adaptability & flexibility: Define any controller method signature you need, possibly using one of the parameter annotations • Reusable business code: Use existing business objects as command or form objects instead of mirroring them to extend a particular framework base class BIG SMART DATA MVC Framework Spring Modules
- 17. • Customizable binding & validation • Customizable handler mapping & view resolution • Flexible model transfer: Model transfer with a name/value Map supports easy integration with any view technology • Customizable locale and theme resolution • Support for JSPs with/without Spring tag library BIG SMART DATA MVC Framework Spring Modules
- 18. • Support for JSTL • Support for Velocity without the need for extra bridges • Spring tag library for data binding & themes • JSP form tag library BIG SMART DATA MVC Framework Spring Modules
- 19. Spring Resources Tutorials: Developing a Spring Framework MVC application: http://static.springsource.org/docs/Spring-MVC-step-by-step/ Introduction to Spring Web MVC: https://netbeans.org/kb/docs/web/quickstart-webapps-spring.html Resources: The Spring Framework: http://www.springsource.org/spring-framework Modern Web: http://www.springsource.org/features/modern-web NetBeans IDE: http://netbeans.org BIG SMART DATA