Spring Java EE Comparison - rahmannet.net · Evolution of Java EE and Spring Java EE 6 & Spring 3...

© 2011 IBM Corporation© 2011 IBM Corporation

Java EE and Spring Framework Shootout

� Rohit Kelapure IBM Advisory Software Engineer, http://wasdynacache.blogspot.com/

� Reza Rahman Independent Consultant, Author, Java EE Expert http://www.rahmannet.net/

� Presentation can be downloaded from http://db.tt/1q9us2JH

© 2011 IBM Corporation

Important Disclaimers

� THE INFORMATION CONTAINED IN THIS PRESENTATION IS PROVIDED FOR INFORMATIONAL PURPOSES ONLY.

� WHILST EFFORTS WERE MADE TO VERIFY THE COMPLETENESS AND ACCURACY OF THE INFORMATION CONTAINED IN THIS PRESENTATION, IT IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED.

� ALL PERFORMANCE DATA INCLUDED IN THIS PRESENTATION HAVE BEEN GATHERED IN A CONTROLLED ENVIRONMENT. YOUR OWN TEST RESULTS MAY VARY BASED ON HARDWARE, SOFTWARE OR INFRASTRUCTURE DIFFERENCES.

� ALL DATA INCLUDED IN THIS PRESENTATION ARE MEANT TO BE USED ONLY AS A GUIDE.

� IN ADDITION, THE INFORMATION CONTAINED IN THIS PRESENTATION IS BASED ON IBM’S CURRENT PRODUCT PLANS AND STRATEGY, WHICH ARE SUBJECT TO CHANGE BY IBM, WITHOUT NOTICE.

� IBM AND ITS AFFILIATED COMPANIES SHALL NOT BE RESPONSIBLE FOR ANY DAMAGES ARISING OUT OF THE USE OF, OR OTHERWISE RELATED TO, THIS PRESENTATION OR ANY OTHER DOCUMENTATION.

� NOTHING CONTAINED IN THIS PRESENTATION IS INTENDED TO, OR SHALL HAVE THE EFFECT OF:

� - CREATING ANY WARRANT OR REPRESENTATION FROM IBM, ITS AFFILIATED COMPANIES OR ITS OR THEIR SUPPLIERS AND/OR LICENSORS

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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)

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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

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� 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

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JSF 2 vs. Spring MVC Front Controller

© 2011 IBM Corporation21

Facelet


© 2011 IBM Corporation22

EntityJSF Event Handler



JSF 2 vs. Spring MVC

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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

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Java EE vs. Spring Scheduling

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Java EE vs. Spring Messaging

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Spring JMS Configuration

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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

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Spring Ecosystem

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CDI Landscape

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Implementations

Weld CanDI

RuntimesPortable Extensions

Tools


CDI Ecosystem

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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

–DataSources can 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

� CanDI http://www.caucho.com/resin/candi/

� OpenWebBeans http://openwebbeans.apache.org/owb/index.html

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