What’s new in J2EE 1.4

Sean C. SullivanPortland Java Users GroupFebruary 2004

Evolution of the J2EE platform

EJB 1.0March 1998

Servlets 2.1November 1998

JSP 1.0September 1999

J2EE 1.2December 1999

J2EE 1.3September 2001

J2EE 1.4November 2003

1998 1999 20012000 2002 2003

Evolution of the J2EE platform

EJB 1.0March 1998

Servlets 2.1November 1998

JSP 1.0September 1999

J2EE 1.2December 1999

J2EE 1.3September 2001

J2EE 1.4November 2003

1998 1999 20012000 2002 2003

Agenda

• J2EE 1.4

• J2EE 1.4 SDK

• Adventure Builder

J2EE Application Server

Client J2EE Server

Database

Browser

ApplicationClient

Container

ApplicationClient

Web container

Servlet JSP

EJB container

EJB EJB

J2EE 1.4 specification

246 pages

J2EE 1.4 technologies

• Servlets 2.4

• JSP 2.0

• EJB 2.1

• JMS 1.1

• JTA 1.0.1B

• JTS 1.0

• JMX 1.2• J2EE Management API 1.0• J2EE Deployment API 1.1

• JCA 1.5• JAXR 1.0• JAX-RPC 1.1• SAAJ 1.2• JACC 1.0• JavaMail 1.2

J2EE 1.4 and Web Services

“The Java 2 Platform, Enterprise Edition version 1.4 is the most complete Web services platform ever.”

source: http://java.sun.com/j2ee/1.4/download-dr.html

Support for web services

• SOAP

• SOAP with Attachments

• WSDL

• UDDI

• SOAP transport– HTTP– HTTPS

• WS-I Basic Profile 1.0

Web service example

Web servicesclient

Stock quoteweb service

Web service example

“SUNW”

Web servicesclient

Stock quoteweb service

Web service example

“SUNW”

5.24Web services

clientStock quoteweb service

Web Services for J2EE (JSR-921)

98 pages

JSR-921

• Client programming model

• Server programming model– Web service endpoints– Service implementation beans

• Defines deployment requirements for J2EE web services

Web Service API’s

• SAAJ 1.2

• JAX-RPC 1.1

• JAXR 1.0

SAAJ 1.2 specification

125 pages

SAAJ 1.2

• a low-level API for producing and consuming SOAP 1.1 messages

• package: javax.xml.soap

javax.xml.soap

• SOAPMessage

• SOAPMessageFactory

• SOAPEnvelope

• SOAPHeader

• SOAPHeaderElement

• SOAPBody

• SOAPBodyElement

• SOAPPart

• AttachmentPart

• SOAPElement

• SOAPElementFactory

• SOAPConnection

• SOAPConnectionFactory

• SOAPException

JAX-RPC 1.1 specification

167 pages

JAX-RPC 1.1

• an API for building– web services– web service clients

• JAX-RPC is dependent upon SAAJ

# - Remote Procedure Call

JAX-RPC packages

• javax.xml.rpc

• javax.xml.rpc.encoding

• javax.xml.rpc.handler

• javax.xml.rpc.handler.soap

• javax.xml.rpc.server

• javax.xml.rpc.soap

SAAJ versus JAX-RPC

“Most developers will not use the SAAJ API, but will use the higher-level JAX-RPC API instead.” (Sun, J2EE 1.4 Tutorial)

JAXR 1.0 specification

119 pages

JAXR 1.0

• standard API for accessing XML registries

• supports UDDI and ebXML registries

JAXR packages

javax.xml.registry• Connection• RegistryService

…

javax.xml.registry.infomodel• RegistryObject• Service• ServiceBinding

…

Servlet 2.4 specification

330 pages

What’s new in Servlet 2.4?

• javax.servlet.ServletRequestListener

• javax.servlet.ServletRequestEvent

• javax.servlet.ServletRequestAttributeListener

• javax.servlet.ServletRequestAttributeEvent

What’s new in Servlet 2.4?

• improved servlet filter mapping– REQUEST– FORWARD– INCLUDE– ERROR

• SingleThreadModel is deprecated

JSP 2.0 specification

JSP 1.0 -- 112 pagesJSP 1.1 -- 158 pagesJSP 1.2 -- 268 pagesJSP 2.0 -- 478 pages

JSP 2.0

• javax.servlet.jsp.ErrorData• javax.servlet.jsp.JspContext• javax.servlet.jsp.el.FunctionMapper• javax.servlet.jsp.el.VariableResolver• javax.servlet.jsp.el.Expression• javax.servlet.jsp.el.ExpressionEvaluator• javax.servlet.jsp.tagext.DynamicAttributes• javax.servlet.jsp.tagext.JspTag• javax.servlet.jsp.tagext.SimpleTag• javax.servlet.jsp.tagext.SimpleTagSupport• javax.servlet.jsp.tagext.TagAdapter• javax.servlet.jsp.tagext.FunctionInfo• javax.servlet.jsp.tagext.JspFragment

JSP Expression Language

<input name=city value=“${location.city}”>

<input name=state value=“${location.state}”>

<input name=zip value=${location.zip}”>

Example

EJB 2.1 specification

646 pages

What’s new in EJB 2.1?

• support for web services

• EJB Timer service

• more generalized architecture for message driven beans

• EJB QL enhancements

• new deployment descriptor elements

EJB Timer Service

• enables you to schedule timed notifications

• single event timers

• interval timers

EJB Timer Service API

• javax.ejb.EJBContext– method: getTimerService

• javax.ejb.TimerService

• javax.ejb.TimedObject

• javax.ejb.Timer

• javax.ejb.TimerHandle

JMS 1.1 specification

140 pages

What’s new in JMS 1.1?

JMS 1.1 gives you the ability to use queues and topics in the same transaction

JMS API

Common interfaces

Point-to-point Pub/sub

ConnectionFactory QueueConnectionFactory TopicConnectionFactory

Connection QueueConnection TopicConnection

Destination Queue Topic

Session QueueSession TopicSession

MessageProducer QueueSender TopicPublisher

MessageConsumer QueueReceiver,

QueueBrowser

TopicSubscriber

JCA 1.5

490 pages

JCA system contracts

• Connection management (JCA 1.0)

• Security management (JCA 1.0)

• Transaction management (JCA 1.0)

• Lifecycle management (JCA 1.5)

• Work management (JCA 1.5)

• Transaction inflow (JCA 1.5)

• Message inflow (JCA 1.5)

J2EE Management API 1.0

214 pages

J2EE Management API

• defines the J2EE Management Model

• management events– event notification

• state management– start, startRecursive, stop

• performance monitoring– runtime statistics

J2EE Management events

• j2ee.object.created

• j2ee.object.deleted

• j2ee.state.starting

• j2ee.state.running

• j2ee.state.stopping

• j2ee.state.stopped

• j2ee.state.failed

• j2ee.attribute.changed

J2EE Management packages

• javax.management.j2ee

• javax.management.j2ee.statistics

J2EE Deployment API 1.0

96 pages

J2EE Deployment packages

• javax.enterprise.deploy.model

• javax.enterprise.deploy.shared

• javax.enterprise.deploy.shared.factories

• javax.enterprise.deploy.spi

• javax.enterprise.deploy.spi.exceptions

• javax.enterprise.deploy.spi.factories

• javax.enterprise.deploy.spi.status

Deployment descriptors

• J2EE 1.2 and J2EE 1.3:– defined by DTD’s

• J2EE 1.4:– defined by XML Schema (XSD)

DTD’s and Schemas

• application-client_1_4.xsd• application_1_4.xsd• connector_1_5.xsd• ejb-jar_2_1.xsd• j2ee_1_4.xsd• j2ee_jaxrpc_mapping_1_1.xsd• j2ee_web_services_1_1.xsd• j2ee_web_services_client_1_1.xsd• jsp_2_0.xsd• web-app_2_4.xsd• web-jsptaglibrary_2_0.xsd• xml.xsd

• application-client_1_3.dtd

• application_1_3.dtd

• connector_1_0.dtd

• ejb-jar_2_0.dtd

• web-app_2_3.dtd

• web-jsptaglibrary_1_2.dtd

J2EE 1.3 J2EE 1.4

web.xml - J2EE 1.3

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE web-app PUBLIC '-//Sun Microsystems, Inc.//DTD Web

Application 2.3//EN' 'http://java.sun.com/dtd/web-app_2_3.dtd'>

<web-app> <display-name>helloworld</display-name> <servlet> <servlet-name>HelloServlet</servlet-name> <servlet-class>org.pjug.HelloServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>HelloServlet</servlet-name> <url-pattern>/hello/*</url-pattern> </servlet-mapping></web-app>

web.xml - J2EE 1.4

<?xml version="1.0" encoding="UTF-8"?><web-app version="2.4"

xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

<display-name>helloworld</display-name> <servlet> <servlet-name>HelloServlet</servlet-name> <servlet-class>org.pjug.HelloServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>HelloServlet</servlet-name> <url-pattern>/hello/*</url-pattern> </servlet-mapping></web-app>

Review: J2EE 1.4 technologies

• Servlets 2.4

• JSP 2.0

• EJB 2.1

• JMS 1.1

• JTA 1.0.1B

• JTS 1.0

• JMX 1.2• J2EE Management API 1.0• J2EE Deployment API 1.1

• JCA 1.5• JAXR 1.0• JAX-RPC 1.1• SAAJ 1.2• JACC 1.0• JavaMail 1.2

Not part of J2EE 1.4

• JSTL

• JavaServer Faces

• JDBC RowSets (JSR-114)

• JAXB

• Java Data Objects

• JNLP

• JMX Remote API (JSR-160)

• STAX (JSR-173)

• JCACHE (JSR-107)

• Portlets (JSR-168)

• JWSDL (JSR-110)

J2EE 1.4 SDK

• J2EE 1.4 Application Server

• Schema files– <J2EE_HOME>/lib/schemas

• Command line tools

• Sample applications

App server admin console

SDK command line tools

• appclient

• asadmin

• asant

• capture-schema

• deploytool

• jspc

• package-appclient

• verifier

• wscompile

• wsdeploy

Adventure Builder demo

Open source projects

Tomcat 5.0– http://jakarta.apache.org/tomcat

Apache Axis– http://ws.apache.org/axis/

Apache Geronimo– http://incubator.apache.org/

ObjectWeb– http://www.objectweb.org/

For more information

• http://java.sun.com/j2ee/

• http://java.sun.com/webservices/

• http://java.sun.com/blueprints/enterprise/

• http://www.jcp.org/

Backup slides

These additional slides are backup material.

JACC 1.0

• javax.security.jacc.PolicyConfiguration

• javax.security.jacc.PolicyContextHandler

• javax.security.jacc.EJBMethodPermission

• javax.security.jacc.EJBRoleRefPermission

• javax.security.jacc.PolicyConfigurationFactory

• javax.security.jacc.PolicyContext

• javax.security.jacc.WebResourcePermission

• javax.security.jacc.WebRoleRefPermission

• javax.security.jacc.WebUserDataPermission

Not covered in this presentation

• JMX 1.2

• JTA

• JTS

• JavaMail