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

transcript

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

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.

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Copyright and Trademarks

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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

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

J2EE ��Java EE Specifications

* Introduced in spec.

Evolution of J2EE��Java EE6 (Dec 09)

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

Evolution of Spring [ 1.0, 2.0, 2.5, 3.0, 3.1]

Spring Framework

� 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

Java EE vs. Spring Framework Features/APIs Overview

Java EE vs. Spring Business Component

Spring XML for Business Component Injection

Spring Java Based Configuration

Java EE Interceptor vs. Spring Aspects

Java EE vs. Spring Injection

Java EE vs. Spring Injection – Spring configuration

Facelet Component

JSF 2 vs. Spring MVC Front Controller

Facelet

EntityJSF Event Handler

JSF 2 vs. Spring MVC

Spring MVC JSP

Spring MVC Configuration

Spring Controller

Spring MVC web.xml configuration

Java EE vs. Spring Scheduling

Java EE vs. Spring Messaging

Spring JMS Configuration

Spring Message Producer

Java EE Message Producer & JMS Abstraction

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

Spring Ecosystem

CDI Landscape

Implementations

Weld CanDI

RuntimesPortable Extensions

CDI Ecosystem

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

Java EE coexistence with Spring

Birds Eye View

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

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

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

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