Spring 3.0 GA is awaited in the second half of 2009. The session will show an overview of the changes and the new features of the framework.Demos will be shown on a sample application deployed on the new GAE/J.

1. Patrick Baumgartner

2.  Trivadis AD Consultant
 Focus on
 Web development
 OSGi / Spring dm
 Agile software development

4.  Roadmap
 Milestones / Feature Overview
 Spring Expression Language (SpEL)
 IoC / JavaConfig Integration
 REST Support
 Bean Validation
 New Project Layout
 GAE/J Demo

7.  Spring Framework 1.0 24.03.04
 Spring Framework 2.0 05.10.05
 Spring Framework 2.5 19.11.07

8.  Spring Framework 3.0 M1 08.12.09
 Spring Framework 3.0 M2 01.03.09
 Spring Framework 3.0 M3 Q1 2009
 Spring Framework 3.0 RC 1 Q2 2009
 Spring Framework 3.0 RELEASE Q2 2009

9.  Spring EL and REST support
 Updated codebase for Java 5 code style
 Updated to JUnit 4.5 and JRuby 1.1
 @PathVariable , @RequestParam,
@RequestHeader, @CookieValue
 AbstractAtomFeedView and AbstractRssFeedView
 <spring:url> and <spring:param> JSP tags

10.  Further Java 5 style API updates
 Extended concurrency support
 OXM module in core
 RestTemplate
 MVC on Portlet 2.0
 Early JPA 2.0 support

11.  Annotation-based factory methods
 Declarative validation (based on JSR-303 quot;Bean
Validationquot;)
 New XML configuration namespaces
(orm, scheduling)
 Spring MVC: conversation management
 Preparations for JSF 2.0

12.  Overdue since weeks
 Release at SpringOne Europe 2009 Conference ?!
 Jira History
 Tuesday 21.04.09 - 14 Issues left
 Wednesday 22.04.09 - 7 Issues left
 Yesterday 24.04.09 – 8 Issues left
 Today ... 9 Issues left

13.  requires Java 5 or above
 requires J2EE 1.4 or above
 Some spring cleaning (removed/deprecated outdated
classes)
 SpringSource is building the Spring Framework on
Java 6 and Java EE 5
 But still compatible with Java 5 enabled J2EE 1.4
servers such as WebLogic 9 and WebSphere 6.1.

15.  EL implementation included in Spring 3.0
 package org.springframework.expression
 next-generation expression engine inspired by Spring
Web Flow 2.0's expression support
 Compatible with Unified EL syntax and morepowerful
 navigating bean properties, collections, maps, custom
 method invocations
 construction of value objects

18.  Implicit variables
 systemProperties , systemEnvironment
 global platform context
 Spring beans by name
 similar to managed beans in JSF expressions

19.  @Configuration
 @Bean
 @Primary
 @Lazy
 @Import
 @Value

21.  Spring MVC 3 provides support for REST-style
mappings
 extraction of URI template parameters
 content negotiation in view resolver
 Goal: Native REST support within Spring MVC, for UI
as well as non-UI usage
 in natural MVC style

22.  @RequestMapping
 @RequestParam
 @PathVariable
 @ModelAttributes
 @SessionAttributes
 @CookieValue
 @RequestHeader

26.  Allows HTML browsers to emulate PUT and DELETE
requests
 HTML forms only support GET/POST natively
 Special hidden parameter determines RequestMethod

27. In view:
 Metadata can be used for persisting, rendering, etc
 Spring: to be supported for MVC data binding
 JSR-303 quot;Bean Validationquot; as the common ground

28.  Framework modules revised
 now managed in Maven style
 one source tree per module jar
 spring-beans.jar, spring-aop.jar, etc
 no spring.jar anymore!

29.  Built with new Spring build system as known from
Spring Web Flow 2.0
 Ivy-based quot;Spring Buildquot; system
 consistent deployment procedure
 consistent dependency management
 consistent generation of OSGi manifests

34.  Modularity, shipped as OSGi Bundles
 ADD – Annotation Driven Development
 Spring JavaConfig integration in Core Module
 RESTful Support
 Spring EL (SpEL) is Unified EL ++
 Bean Validation

36. Email: patrick.baumgartner@trivadis.com
Twitter: @patbaumgartner

38.  What’s New in Spring 3 by Keith
Donald, SpringSource
 http://blog.springsource.com/2008/12/05/spring-
framework-30-m1-released/
 http://blog.springsource.com/2009/02/25/spring-
framework-30-m2-released/
 http://raibledesigns.com/rd/entry/what_s_coming_i
n_spring