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What's New with Java EE 6?

John ClinganGlassFish Group Product Manager

Harpreet SinghGlassFish Product Marketing Manager

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Java EE: Past & Present

JPEJPEProjectProject

J2EE 1.2J2EE 1.2

ServletServlet

JSPJSP

EJBEJB

JMSJMS

RMI/IIOPRMI/IIOP

Enterprise Java Enterprise Java PlatformPlatform

J2EE 1.3J2EE 1.3

CMPCMP

ConnectorConnectorArchitectureArchitecture

RobustnessRobustness

J2EE 1.4J2EE 1.4

WebWebServices Services

Management Management

DeploymentDeployment

Async. Async. ConnectorConnector

Java EE 5Java EE 5

Ease of Ease of Development Development

AnnotationsAnnotations

EJB 3.0EJB 3.0

PersistencePersistence

New and New and Updated Updated Web Services Web Services

Java EE 6

Pruning Extensibility Profiles Ease of Development

EJB Lite RESTful Services Dependency Ejection

Web Profile

WebWebServicesServices

Ease ofEase ofDevelopmentDevelopment

RightsizingRightsizing

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08/.../08 Over 18M DownloadsOver 18M Downloads

since FY'06since FY'06

Active Users

Java EE Adoption

FY 06 FY 07 FY 08 FY 090

2,000,000

4,000,000

6,000,000

8,000,000

10,000,000

12,000,000

Y/ Y D o w nlo a d G r o w t h

Downloads

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Compatible Java EE 5 Implementations

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Java EE 6 Platform

• Rightsizing> Flexible> Lighter weight

• Extensible> Embrace Open Source

Frameworks

• Productive> Improve on Java EE 5

Goals

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Rightsizing the Platform: Profiles

• Decouple specifications to allow more combinations

• Expand potential licensee ecosystem

• Profiles> Targeted technology bundles> Web Profile

Platform Flexibility

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Rightsizing the Platform

• Fully functional mid-sized profile

• Actively discussed> Expert Group> Industry

• Technologies> Servlet 3.0, EJB Lite 3.1, JPA 2.0, JSP

2.2, EL 1.2, JSTL 1.2, JSF 2.0, JTA 1.1, JSR 45, Common Annotations

Web Profile

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Rightsizing the Platform

• Some technologies optional> Optional in next release> Deleted in subsequent release> Marked in Javadocs

• Pruning list> JAX-RPC> EJB 2.x Entity Beans> JAXR> JSR-85 (Rules based Auth & Audit)

Pruning (Deprecation)

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Rightsizing the Platform

• Embrace open source libraries and frameworks

• Zero-configuration, drag-n-drop web frameworks> Servlets, servlet filters> Framework context listeners

are discovered & registered

• Plugin library jars using Web Fragments

Extensibility

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Ease of Development

• Continue Java EE 5 advancements

• Primary focus: Web Tier

• Multiple areas easier to use: EJB 3.1

• General Principles> Annotation-based programming model> Reduce or eliminate need for

deployment descriptors> Traditional API for advanced users

Extensibility

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Ease of Development

Adding an EJB to a Web Application

BuyBooks.warBuyBooks.war ShoppingCartShoppingCartEJB ClassEJB Class

ShoppingCart.jarShoppingCart.jar

BuyBooks.earBuyBooks.ear

ShoppingCartShoppingCartEJB ClassEJB Class

BuyBooks.warBuyBooks.war

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Ease of Development - Annotations

Servlet in Java EE 5: Create two source files

<!--Deployment descriptor web.xml -->

<web-app>

<servlet><servlet-name>MyServlet

</servlet-name> <servlet-class> com.foo.MyServlet </servlet-class> </servlet> <servlet-mapping> <servlet-name>MyServlet </servlet-name> <url-pattern>/myApp/* </url-pattern> </servlet-mapping> ... </web-app>

/* Code in Java Class */

package com.foo;public class MyServlet extends HttpServlet {public void doGet(HttpServletRequest req,HttpServletResponse res)

{

...

}

...

}

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Ease of Development - Annotations

Java EE 6 Servlet: Single Source file (many cases)

package com.foo;@WebServlet(name=”MyServlet”, urlPattern=”/myApp/*”)public class MyServlet {

public void doGet(HttpServletRequest req, HttpServletResponse res)

{...

}

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DemoJava EE 6

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Java Enterprise Edition 6

• Most public reviews complete• JSR 330 Recently added

> Revised schedule> Final release in Q4 2009

• GlassFish v3 Preview> Reference Implementation

Status

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Java Enterprise Edition 6

• Annotations for ease of development

• Optional web.xml• Better defaults• Web Framework pluggability• Asynchronous Processing

Servlet 3.0

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Java Enterprise Edition 6

• Useful for Comet, long waits• Must declare

@WebServlet(asyncSupported=true)

• Then CallAsyncContext ctx = ServletRequest.startAsync(req, res)

• AsyncContext can then either:dispatch(String path)start(Runnable action)

• Then paired with complete()

Servlet 3.0 Asynchronous API

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Java Enterprise Edition 6

• Ease-of-use improvements• No-interface view

> Once source file per bean

• EJB inside web applications> No ejb-jar> Use WEB-INF/classes> Shared component environment

• Portable JNDI

EJB 3.1

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Java Enterprise Edition 6

• Singleton beans: @Singleton> Shared state> One instance per bean per JVM> Container/Bean managed security

@ConcurrencyManagement

• Lightweight asynchronicity> Async business methods

@Asynchronous> Methods must return

void or Future <T>

EJB 3.1

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Java Enterprise Edition 6

• Enhanced EJB Timer Service> Cron-like scheduling> Initialization-time timer creation

@Schedule(dayOfWeek=”Mon/Wed”)

• Embeddable EJB Container> Use in JavaSE environments> Bootstrapping API

EJBContainer

EJB 3.1

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Java Enterprise Edition 6

Enterprise Java Beans 3.1 Features

EJB 3.1 Lite EJB 3.1

Local Session Beans PP PP Declarative Security PP PP

Transactions (CMT/BMT) PP PP Interceptors PP PP Security PP PP Message Driven Beans PP RMI/IIOP Interop. & Remote View PP EJB 2.x Backwards Compatability PP Timer Service PP Asynchronous PP

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Java Enterprise Edition 6

• Java Persistence Architecture 2.0> Improve object/relational mapping

• Java Contexts & Dependency Injection (AKA - “Web Beans”)

• Java Server Faces 2.0> AJAX> Simplified component creation

• JAX-RS 1.1 – RESTful services

Additional Features

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GlassFish v3

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Top Features

GlassFish v3

• Java EE 6 support• Developer Productivity• Modular• Extensible• Embeddable• Observable

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Java EE 6 Support

GlassFish v3

• Java EE 6 Reference Implementation

• Downloadable bundles*> Web Profile> Java EE 6

* https://glassfish.dev.java.net/public/downloadsindex.html

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GlassFish v3 Features

• Getting Started> Small download> Fast startup time> Intuitive user interface

• Using GlassFish> Low resource utilization> Command Line Interface> Maven support> Included in Netbeans and GlassFish Tools

Bundle for Eclipse> Rapid iterative development

Developer Productivity

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GlassFish v3 Features

• Modularity/OSGi

• Extensible

• RESTful administration API

• Fine-grained monitoring

Wait, there's more ...

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Flexible AdministrationFlexible Administration

GlassFish v3 Screen Snapshots

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Alternative Languages

GlassFish Enterprise Server v3

• Can deploy as web application• New to GlassFish v3

> Jruby/Jython modules> No web container> Dynamic pooling of JRuby

containers

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DemoUpdate Center

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Roadmap

GlassFish Enterprise Server v3

• GlassFish Enterprise Server v2.1 – Feb 2009

• GlassFish Enterprise Server v3 Prelude – Oct 2009

• GlassFish v3 – Nov 24, 2009*

* http://wiki.glassfish.java.net/Wiki.jsp?page=GlassFishV3Schedule

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Summary

Java EE 6 GlassFish v3

• Right-Sizing• Extensible• Ease of

use/development

• Java EE 6 • Modular• Extensible• Developer

productivity

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Enterprise Subscriptions

Sun GlassFish Enterprise Server

• 24x7x365 Support, Patches• Enterprise Manager• Supported releases

> GlassFish Enterprise Server v2.x> GlassFish Enterprise Server v3

Prelude

• Contact glassfish@sun.com to learn more

Sun Software Subscriptions - Paying at the point of value

Source Code• Binary Product• Simple Training• Security Help• Developer/Tools/Tips

Subscription Agreements• Global Phone and Web Support• Issue Escalation Process• Subscription-only Product Features• Traditional Contractual Coverages• Services & Training

Open Source Supported Software

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GlassFish Enterprise Server

Sun software - a simple approach to support

You may use phone or web to contact our experts 24 hours a day, worldwide. Get the experience and issue resolution necessary help to keep your business running!

Ability to escalate bugs to an out of cycle patch or engineering attention; you have visibility into the issue resolution process.

Access to Sun Knowledge Base.Technical support assistance backed by the engineers who wrote &/or

solidified the code.Proactive Sun Alerts and Notifications.Low risk, tested fixes and features for mission critical deployments Access to aggregated content like bugs fixed, docs, latest news,

promotions and tech tips

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GlassFish Enterprise Server

Why Else should I subscribe?

Subscription-Exclusive Features:GlassFish Enterprise Manager - • SNMP Monitoring

• Application Server Tuning

• Alerts (CPU Usage Trends, Memory Alerts, etc.)

GlassFish Update Center - • Delivers GlassFish add-on components, updates & provides mechanism to

enable community contributions.

• Use Update Center to get latest and greatest technology binaries.

• Provides the service, access and installation of updates patches available.

Contractual Coverage: Optional indemnification & Limitation of Liability

Who's Using GlassFish In Production?

Questions? GlassFish@Sun.COM

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Q&A