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kuni katsuya

Why Service Isn't A ServiceFacade, But ServiceFacade Is Sometimes A Service... : Adam Bien's Weblog - 0 views

www.adam-bien.com/...why_service_isn_t_a

javaee6 ejb3.1 ServiceFacade service boundary

shared by kuni katsuya on 09 Aug 12 - No Cached
  • boundary, which main responsibilities are:Providing coarser granularityEnsuring consistencyProviding a defined entry point which can be easily decorated with aspects / interceptorsExposure of components (what components are we will cover later) functionality to remote clients via IIOP, REST, SOAP, JMS, Hessian etc...
  • ServiceFacade - the facade to Services. The Services just rely on a certain amount of cross cutting aspects and concentrate on the realization of business logic
  • only invokes Services in consistent way, mostly using transactions
  • ...2 more annotations...
  • Services can remain independent
  • ServiceFacade combines them
kuni katsuya

Article Series: Migrating Spring Applications to Java EE 6 - Part 1 | How to JBoss - 1 views

howtojboss.com/...plications-to-java-ee-6-part-1

spring javaee6 migration

shared by kuni katsuya on 06 Jun 12 - No Cached
  • In fact people still love those books without realizing that the world has changed dramatically ever since
  • The reality check here is to wonder whether the rhetorics set forth by Rod Johnson in his 2003/2004 books are still actual today
  • So if you still care about those books, the best way to show your appreciation is probably to use them as your monitor stand
  • ...21 more annotations...
  • The discussion whether or not to use Spring vs. Java EE for new enterprise Java applications is a no-brainer
  • Why migrate?
  • since then fallen a prey to the hungry minds of Venture Capitalists and finally into the hands of a virtualization company called VMware
  • While the different companies and individuals behind the Spring framework have been doing some work in the JCP their voting behavior on important JSRs is peculiar to say the least
  • outdated ORM solution like JDBC templates
  • some developers completely stopped looking at new developments in the Java EE space and might have lost track of the current state of technology
  • size of the deployment archive
  • fairly standard Java EE 6 application will take up about 100 kilobytes
  • comparable Spring application weighs in at a whopping 30 Megabytes!
  • Lightweight
  • Firing up the latest JBoss AS 7 Application Server from scratch and deploying a full blown Java EE 6 application into the server takes somewhere between two and five seconds on a standard machine. This is in the same league as a Tomcat / Spring combo
  • Dependency injection
  • Java EE 6, the Context and Dependency Injection (CDI) specification was introduced to the Java platform, which has a very powerful contextual DI model adding extensibility of injectable enterprise services
  • Aspect Oriented Programming
  • “AOP Light” and this is exactly what Java EE Interceptors do
  • common pitfall when taking AOP too far is that your code might end up all asymmetric and unreadable. This is due to the fact that the aspect and its implementation are not in the same place. Determining what a piece of code will do at runtime at a glance will be really hard
  • Testing
  • With Arquillian we can get rid of mocking frameworks and test Java EE components in their natural environment
  • Tooling
  • capabilities comparison matrix below to map Spring’s technology to that of Java EE
  • Capability Spring JavaEE Dependency Injection Spring Container CDI Transactions AOP / annotations EJB Web framework Spring Web MVC JSF AOP AspectJ (limited to Spring beans) Interceptors Messaging JMS JMS / CDI Data Access JDBC templates / other ORM / JPA JPA RESTful Web Services Spring Web MVC (3.0) JAX-RS Integration testing Spring Test framework Arquillian *
kuni katsuya

Comparison - 0 views

openejb.apache.org/comparison.html

apache tomcat tomee tomee+ openejb comparison

shared by kuni katsuya on 16 May 12 - No Cached
  • TomEE is a superset of OpenEJB
  • Tomcat
  • TomEE
  • ...5 more annotations...
  • TomEE+
  • OpenEJB
  • Java API for XML Web Services (JAX-WS) Java API for RESTful Web Services (JAX-RS) Java EE Connector Architecture Java Messaging Service (JMS)
  • Java Servlets Java ServerPages (JSP) Java ServerFaces (JSF) Java Transaction API (JTA)
  • Java Persistence API (JPA) Java Contexts and Dependency Injection (CDI) Java Authentication and Authorization Service (JAAS) Java Authorization Contract for Containers (JACC) JavaMail API Bean Validation Enterprise JavaBeans
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