Java EE vs Spring Framework

Java EE and Spring Framework Shootout
Rohit Kelapure IBM Advisory Software Engineer, http://wasdynacache.blogspot.com/
Reza RahmanIndependent Consultant, Author, Java EE Expert http://www.rahmannet.net/
Presentation can be downloaded from http://db.tt/1q9us2JH

Important Disclaimers
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Copyright and Trademarks
© IBM Corporation 2011. All Rights Reserved.
IBM, the IBM logo, and ibm.com are trademarks or registered trademarks of International Business Machines Corp., and registered in many jurisdictions worldwide.
Other product and service names might be trademarks of IBM or other companies.
A current list of IBM trademarks is available on the Web – see the IBM “Copyright and trademark information” page at URL: www.ibm.com/legal/copytrade.shtml
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Outline
Evolution of Java EE and Spring
Java EE 6 & Spring 3.0, 3.1 highlights
Spring 3.1 feature comparison with Java EE 6
CDI and Spring ecosystem
Spring and Java EE coexistence
Conclusion
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J2EE Java EE Specifications
* Introduced in spec.

Evolution of J2EEJava EE6 (Dec 09)
New specs (JAX-RS, CDI, Bean Validation)
Prune dead wood
EJB 2.x, JAX-RPC, JAXR, JEE App. Deploy, JEE App mgmt.
Extensibility
Easy Framework Pluggability (web fragments & CDI Extensions)
Enhanced ease of development
POJO annotation based Servlets,
Asynchronous processing (Servlet 3.0 & EJB 3.1)
EJB 3.1
EJB-in-WAR, No-interface view, Singleton, EJB-lite, Timers
Contextual Dependency Injection (CDI)
RESTful services
Portable JNDI names
JSF2.0
Facelets, built-in-AJAX, Skins, Annotations, Resource handling
Simplified Navigation, Easier custom components, View & Page scopes
Bookmarkable pages, Project Stage, Expanded event model
JPA 2.0
Mapping enhancements, JPAQL, Criteria Query API, Pessimistic locking
Profiles reduce platform size
Web Profile 12 specs
Vendor support
WebSphere AS 8
JBOSS AS 7
Oracle WebLogic 11g
Glassfish 3
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JSR 299 Contexts and Dependency Injection (CDI)
Adds dependency injection to JEE and makes it type-safe.
Hollywood principle - Don’t call us, we will call you
No hard coded dependencies on other specifications
Assists in unifying the Bean model
Well defined contexts, the ability to bind beans statefully to them & manage their lifecycle.
Introduces an event notification system to decouple producers & consumers
Uses interceptors to foster loose coupling
Extend behavior with type safe interceptor bindings
Refines interceptors into decorators for finer grained control
Integrates with the Unified EL to bridge JSF
Enables use of EJB 3.0 components as JSF managed beans
Introduces an SPI to extend JEE – Roll your own JEE7!
Not only an API but also a SPI
Rich ecosystem of CDI extensions
Adds the Web conversation context
Spring does NOT provide support for CDI
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Evolution of Spring [ 1.0, 2.0, 2.5, 3.0, 3.1]
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Spring Framework
9
Lightweight dependency injection
Aspect oriented
Layered application & container framework
Well defined modules on top of the core container
NOT an all-or-nothing solution

Birds Eye View
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Java EE vs. Spring Framework Features/APIs Overview
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Java EE vs. Spring Business Component
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Spring XML for Business Component Injection
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Spring XML for Business Component Injection
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Spring Java Based Configuration
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Spring Java Based Configuration
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Java EE Interceptor vs. Spring Aspects
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Java EE vs. Spring Injection
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Java EE vs. Spring Injection – Spring configuration
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Facelet Component
20
JSF 2 vs. Spring MVC Front Controller

21
Facelet

22
Entity
JSF Event Handler

JSF 2 vs. Spring MVC
23
Spring MVC JSP

Spring MVC Configuration
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Spring Controller
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Spring MVC web.xml configuration
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Java EE vs. Spring Scheduling
27

Java EE vs. Spring Scheduling
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Java EE vs. Spring Messaging
29

Spring JMS Configuration
30

Spring Message Producer
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Java EE Message Producer & JMS Abstraction
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Java EE Message Producer & JMS Abstraction
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Hacking the Java EE Platform - CDI Extensions
Activated by dropping jars on the application classpath
Loaded by the java.util.ServiceLoader SPI
Integrate with container through container lifecycle events by
Register additional beans, interceptors and decorators
Injecting dependencies into its own objects
Introduce custom scope with backing context
Augment or override bean annotation-based metadata with other source
Tools/utilities, extending Java EE, integration with Java EE APIs, integrating with non-standard APIs, making Java EE features available in non-Java EE
34

Spring Ecosystem
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CDI Ecosystem Snapshot
36
Runtimes
Implementations
Portable Extensions
Weld
CanDI
Tools

Spring & Java EE Coexistence
Integration with Java EE APIs
Spring beans can be injected into JSF Managed Beans
Spring beans can be referenced in EL with no JSF Backing beans
Spring JmsTemplate can be used on top of raw JMS API for convenience
Spring Listeners similar to EJB MDBs especially JCA rather than JMS listeners
Hibernate validator standardized as Bean Validation (JSR 303)
Spring 3 supports excellent bi-directional integration with EJBs
CDI and Spring Integration through the Spring Bridge to CDI
Native support for Java EE
Java EE5 and Java EE6 annotations supported by Spring
Spring can use JPA / Hibernate natively
Application server integration
DataSourcescan use application server QoS like pooling, transactions, statement caching, debugging, monitoring and security
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Java EE coexistence with Spring
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Birds Eye View
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References
Evolution of Java EE http://en.wikipedia.org/wiki/Java_EE_version_history
Java EE 6 Tutorial http://download.oracle.com/javaee/6/tutorial/doc/
Spring Docs http://static.springsource.org/spring/docs/3.1.x/spring-framework-reference/
Spring Projects http://www.springsource.org/projects
Miscellaneous CDI Extensions https://github.com/softwaremill/softwaremill-common
Migrating Spring to Java EE
https://github.com/paulbakker/migrating-spring-to-javaee
http://ocpsoft.com/java/spring-to-java-ee-a-migration-guide-cdi-jsf-jpa-jta-ejb/
CDI- Spring Bridge
http://rick-hightower.blogspot.com/2011/04/cdi-and-spring-living-in-harmony.html
http://niklasschlimm.blogspot.com/2011/08/jsr-299-cdi-interceptors-for-spring.html
http://niklasschlimm.blogspot.com/2011/08/jsr-299-cdi-decorators-for-spring-beans.html
Best practices integrating Spring with WebSphere Application Server
http://www.ibm.com/developerworks/websphere/techjournal/0609_alcott/0609_alcott.htm
What’s new in Spring 3.1 http://static.springsource.org/spring/docs/3.1.x/spring-framework-reference/htmlsingle/spring-framework-reference.html#new-in-3.1
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References continued
SEAM 3 http://seamframework.org/Seam3
CODI http://myfaces.apache.org/extensions/cdi/
Weld http://seamframework.org/Weld
CanDIhttp://www.caucho.com/resin/candi/
OpenWebBeanshttp://openwebbeans.apache.org/owb/index.html
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Java EE vs Spring Framework

by kelapure on Oct 09, 2011

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Java EE vs Spring Framework — Presentation Transcript