© 2012 oracle corporation · the following is intended to outline our general product direction....

Exploring Java EE 6 and WebLogic 12c


Arun Guptablogs.oracle.com/arungupta, @arungupta

The following is intended to outline our general product direction. It is intended for information purposes only, and may not be y yincorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development,upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle.


Oracle Cloud Application FoundationFoundation for Oracle Fusion Middleware in the CloudFoundation for Oracle Fusion Middleware in the Cloud

Web Social Mobile

O l P bli Cl dUser EngagementUser EngagementUser EngagementUser Engagement

Business ProcessBusiness ProcessBusiness ProcessBusiness Process ContentContentContentContent BusinessBusinessBusinessBusinessTraffic Director

Oracle Public Cloud

Business Process Business Process ManagementManagement

Business Process Business Process ManagementManagement

Content Content ManagementManagement

Content Content ManagementManagement

Business Business IntelligenceIntelligenceBusiness Business

IntelligenceIntelligence

Service IntegrationService IntegrationService IntegrationService Integration Data IntegrationData IntegrationData IntegrationData Integration

WebLogic Server Coherence Tuxedo

Virtual Assembly BuilderIdentity Management & SecurityIdentity Management & SecurityIdentity Management & SecurityIdentity Management & Security

Development Development ToolsTools

Enterprise Enterprise ManagementManagement

Cloud Application Cloud Application FoundationFoundation

Cloud Application Foundation

Exalogic Elastic Cloud


Java EE 6 - Themes

• Light-weightE t• Easy-to-use

• Extensible


Light-weight

• Java EE 6 Web ProfileWebLogic supports Full Java EE 6 only• WebLogic supports Full Java EE 6 only

• Web Profile apps can be deployed to Full Java EE 6

• PruningPruning• Pruned today, means

• Optional in the next release• Deleted in the subsequent releases

• Technologies marked in Javadocs• EJB 2.x Entity Beans, JAX-RPC, JAXR, JSR 88


y

Easy-to-use

• EJB-in-WARN i t f EJB• No-interface EJB

• Optional “web.xml”/”faces-config.xml”• Annotation-driven

• @Schedule• @Path• @Path• @Inject• . . .


Java EE 6 & Ease-of-development

• Continue advancements of Java EE 5P i f W b Ti• Primary focus: Web Tier

• General principlesA t ti b d i d l• Annotation-based programming model

• Reduce or eliminate need for DD• Traditional API for advanced usersTraditional API for advanced users


Extensible

• Servlet web-fragmentsD i i t ti f S l t• Dynamic registration of Servlets

• Portable CDI extensions


Java EE 6 Specifications

• The PlatformJ EE 6 W b P fil 1 0• Java EE 6 Web Profile 1.0

• Managed Beans 1.0


Java EE 6 SpecificationsNew• Contexts and Dependency Injection for

Java EE (JSR 299)

New

Java EE (JSR 299)• Bean Validation 1.0 (JSR 303)

J API f RESTf l W b S i (JSR 311)• Java API for RESTful Web Services (JSR 311)• Dependency Injection for Java (JSR 330)


Java EE 6 SpecificationsExtreme Makeover• Java Server Faces 2.0 (JSR 314)

J S l t 3 0 (JSR 315)

Extreme Makeover

• Java Servlets 3.0 (JSR 315)• Java Persistence 2.0 (JSR 317)• Enterprise Java Beans 3.1 & Interceptors 1.1 (JSR 318)• Java EE Connector Architecture 1.6 (JSR 322)


Java EE 6 SpecificationsUpdates• Java API for XML-based Web Services 2.2 (JSR 224)• Java API for XML Binding 2 2 (JSR 222)

Updates

• Java API for XML Binding 2.2 (JSR 222)• Web Services Metadata MR3 (JSR 181)• JSP 2.2/EL 2.2 (JSR 245)JSP 2.2/EL 2.2 (JSR 245)• Web Services for Java EE 1.3 (JSR 109)• Common Annotations 1.1 (JSR 250)( )• Java Authorization Contract for Containers 1.3 (JSR 115)• Java Authentication Service Provider Interface for Containers 1.0


(JSR 196)

Java EE 6 SpecificationsAs is• JDBC 4.0 API• Java Naming and Directory Interface 1.2• Java Message Service 1.1

As-is

• Java Transaction API 1.1• Java Transaction Service 1.0• JavaMail API Specification 1.4• JavaBeans Activation Framework 1.1• Java API for XML Processing 1 3Java API for XML Processing 1.3• Java API for XML-based RPC 1.1• SOAP with Attachments API for Java 1.3• Java API for XML Registries 1.0• Java EE Management Specification 1.1 (JSR 77)• Java EE Deployment Specification 1.2 (JSR 88)• Java Management Extensions 1.2• Java Authentication and Authorization Service 1.0• Debugging Support for Other Languages (JSR 45)• Standard Tag Library for JSP 1.2 (JSR 52)


S g y JS (JS 5 )• Streaming API for XML 1.0 (JSR 173)

Java EE 6 Web Profile 1.0

Servlets 3.0

JSF 2 0

JPA 2.0

Interceptors JAX RS

EJB 3.1 JDBC

JNDI J M il

StAX

NewJSF 2.0

EJB 3.1 Lite BeanValidation1.0

Interceptors1.1 JAX-RS

JAXB

JNDI

JMS JACC

JavaMail New

Updated

JSP 2.2 CDI 1.0

Validation1.0

JAX-WS JAXP SAAJContributed

JTA 1.1 ManagedBeans 1.0 JASPIC JAX-RPC . . . by RedHat


Managed Beans 1.0

• JavaBeans component model for Java EE• Simple and Universally useful• Simple and Universally useful• Advanced concepts in companion specs

• Basic ServicesBasic Services• Resource Injection, Lifecycle Callbacks, Interceptors

• Available asAvailable as• @Resource / @Inject• java:app/<module-name>/<bean-name>


• java:module/<bean-name>

Managed Beans 1.0 - Sample@

public class MyManagedBean {

public void setupResources() {

@ResourceMyManagedBean bean;

@javax.annotation.ManagedBean

@PostConstruct

// setup your resources}

bli id l R () {@PreDestroy

@InjectMyManagedBean bean;public void cleanupResources() {

// collect them back here}

public String sayHello(String name) {

y g ;

public String sayHello(String name) {return "Hello " + name;

}}


}

http://blogs.sun.com/arungupta/entry/totd_129_managed_beans_1

Servlets in Java EE 5At least 2 filesAt least 2 files

<web-app><servlet>

<servlet-name>MyServlet</servlet-name>

/* Code in Java Class */

package com.sun;y /

<servlet-class>com.sun.MyServlet

</servlet-class></servlet><servlet-mapping>

<servlet-name>MyServlet</servlet-name>

public class MyServlet extends HttpServlet {public void

doGet(HttpServletRequest req,HttpServletResponse res) {

<servlet-name>MyServlet</servlet-name><url-pattern>/myApp/*</url-pattern>

</servlet-mapping>...

</web-app>

...}...}}

Servlets 3.0 (JSR 315)Annotations based @WebServletAnnotations-based @WebServlet

package com.sun;@WebServlet(name=”MyServlet”, urlPatterns={”/myApp/*”})public class MyServlet extends HttpServlet {public void doGet(HttpServletRequest req,

HttpServletResponse res) { <! D l t d i t b l >{

...}



<web-app><servlet>

<servlet-name>MyServlet</servlet-name><servlet-class>

com.sun.MyServlety</servlet-class>

</servlet><servlet-mapping>

<servlet-name>MyServlet</servlet-name><url-pattern>/myApp/*</url-pattern>

</servlet-mapping>


</servlet-mapping>...

</web-app>

Servlets 3.0

• @WebServlet, @WebListener, @WebFilter, , …@W bS l t( S t d t )• @WebServlet(asyncSupported=true)

• Plugin libraries using web fragments• Dynamic registration of Servlets• WEB-INF/lib/[*.jar]/META-INF/resources

accessible in the rootaccessible in the root• Programmatic authentication login/logout

Default Error Page20 | © 2012 Oracle Corporation

• Default Error Page• . . .

EJB 3.1 (JSR 318)Package & Deploy in a WARPackage & Deploy in a WAR

Java EE 5Java EE 6myApp.ear

web.war

WEB-INF/web xml

myApp.war

WEB-INF/classes

Java EE 6

WEB INF/web.xmlWEB-INF/classes

com.sun.FooServletcom.sun.TickTock

com.sun.FooServletcom.sun.TickTockcom.sun.FooBeancom sun FooHelper

beans.jar

com.sun.FooBeancom sun FooHelper

com.sun.FooHelper

web xml ?21 | © 2012 Oracle Corporation

com.sun.FooHelper web.xml ?

EJB 3.1 – Sample@EJB@Stateless

public class MySessionBean {

public void setupResources() {// set p o r reso rces

@EJBMySessionBean bean;

@Stateless

@PostConstruct

// setup your resources}

@PreDestroy

POJO

No specialpublic void cleanupResources() {// collect them back here

}

No special packaging

public String sayHello(String name) {return "Hello " + name;

}

No DD


}

EJB 3.1

• No interface view – one source file per beanE b dd bl API• Embeddable API

• @Singleton I iti li ti i @P tC t t• Initialization in @PostContruct

• @Schedule: Simplified cron-like syntax for Timer@A h S i B• @Asynchronous Session Bean

• Portable Global JNDI Name


Contexts & Dependency Injection (JSR 299)

• Standards-based Dependency InjectionT f B id @I j t API• Type-safe – Buids on @Inject API

• Context/Scope management• Includes ELResolver

@Inject @LoggedIn User userRequestInjection

What ?Which one ?


Injection (Type)(Qualifier)

CDI

• QualifiersE t• Events

• Stereotypes• Interceptors• Decorators• Alternatives• . . .


Java Server Faces 2.0 (JSR 314)

• Facelets as “templating language”• Custom components much easier to develop• Custom components much easier to develop

• Integrated Ajax“faces config xml” optional in common cases• “faces-config.xml” optional in common cases• Default navigation rules

• Much more• Much more …• Runs on Servlet 2.5+• Bookmarkable URLs


• Conditional navigation• ...

Java Persistence API 2 (JSR 317)

• Improved O/R mapping, expanded/richer JPQLT f C it i API• Type-safe Criteria API

• 2nd-level Cache• New locking modes

• PESSIMISTIC_READ – grab shared lock• PESSIMISTIC WRITE grab exclusive lock• PESSIMISTIC_WRITE – grab exclusive lock

• Standard configuration options• javax persistence jdbc [driver | url | user | password]


• javax.persistence.jdbc.[driver | url | user | password]

Bean Validation (JSR 303)

• Tier-independent mechanism to define constraints for data validationdata validation• Represented by annotations in javax.validation.* package

• @NotNull(message=” ”) @Max @Min @Size• @NotNull(message= ... ), @Max, @Min, @Size• Integrated with JSF and JPA

• JSF: f:validateRequired f:validateRegexpJSF: f:validateRequired, f:validateRegexp• JPA: pre-persist, pre-update, and pre-remove

• Fully Extensible


y• @Email String recipient;

JAX-RS 1.1 (JSR 311)

• Java API for building RESTful Web ServicesPOJO b d• POJO based

• Annotation-driven• Server-side API• HTTP-centric


JAX-RS – Sample

public class ProductResource {@Path(”products")

public Products[] getProducts() {// th d t b

@GET @Produces("text/plain")

// query the databasereturn products;

}

@GET @PathParam("id")

public Product getProduct(int id) {// query the databasereturn product;

@Path("{id}")


}

}

IDE SupportWebLogic and Java EE 6WebLogic and Java EE 6


From the real users ... Jigsaw puzzle, Modular, standard, less xml, easy,

Developers can concentrateon business logic, Java EE 6 is providing a standard for the infrastructure.

Standards compliance, vendor independence milliseconds

easy, have I said easy?

the infrastructure.

Higher integrated specs,simple and annotation driven,

independence, milliseconds and kilobyte deployment

Faster development, less frameworks, less complexity, more great

single-classloader WARs,next level of industry standard

complexity, more great code shipped

Definite excuse to avoid Spring forever

Not your fat grandfather's enterprise Java anymore, enterprise Java renaissance

Simplified Java Development, Focus on building great products


http://blogs.oracle.com/arungupta/tags/community+feedback

Help shape Java EE

• Java EE Platform Specificationjavaee spec java net– javaee-spec.java.net

• Java EE HubJava EE Hub– oracle.com/javaee


Join the WebLogic CommunityO l / bl i

Twittertwitter com/oracleweblogic

Oracle.com/weblogic

twitter.com/oracleweblogic

Facebookfacebook.com/oracleweblogic

Oracle’s WebLogic blogblogs.oracle.com/weblogicserver

Y t bYoutubeYoutube.com/oracleweblogic

Developer Webcast Seriesl / / bl d


oracle.com/goto/weblogicdevcast

© 2012 oracle corporation · the following is intended to outline our general product direction....

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