what’s new in j2ee 1.4 sean c. sullivan portland java users group february 2004
TRANSCRIPT
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What’s new in J2EE 1.4
Sean C. SullivanPortland Java Users GroupFebruary 2004
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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
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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
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Agenda
• J2EE 1.4
• J2EE 1.4 SDK
• Adventure Builder
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J2EE Application Server
Client J2EE Server
Database
Browser
ApplicationClient
Container
ApplicationClient
Web container
Servlet JSP
EJB container
EJB EJB
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J2EE 1.4 specification
246 pages
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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
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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
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Support for web services
• SOAP
• SOAP with Attachments
• WSDL
• UDDI
• SOAP transport– HTTP– HTTPS
• WS-I Basic Profile 1.0
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Web service example
Web servicesclient
Stock quoteweb service
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Web service example
“SUNW”
Web servicesclient
Stock quoteweb service
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Web service example
“SUNW”
5.24Web services
clientStock quoteweb service
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Web Services for J2EE (JSR-921)
98 pages
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JSR-921
• Client programming model
• Server programming model– Web service endpoints– Service implementation beans
• Defines deployment requirements for J2EE web services
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Web Service API’s
• SAAJ 1.2
• JAX-RPC 1.1
• JAXR 1.0
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SAAJ 1.2 specification
125 pages
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SAAJ 1.2
• a low-level API for producing and consuming SOAP 1.1 messages
• package: javax.xml.soap
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javax.xml.soap
• SOAPMessage
• SOAPMessageFactory
• SOAPEnvelope
• SOAPHeader
• SOAPHeaderElement
• SOAPBody
• SOAPBodyElement
• SOAPPart
• AttachmentPart
• SOAPElement
• SOAPElementFactory
• SOAPConnection
• SOAPConnectionFactory
• SOAPException
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JAX-RPC 1.1 specification
167 pages
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JAX-RPC 1.1
• an API for building– web services– web service clients
• JAX-RPC is dependent upon SAAJ
# - Remote Procedure Call
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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
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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)
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JAXR 1.0 specification
119 pages
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JAXR 1.0
• standard API for accessing XML registries
• supports UDDI and ebXML registries
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JAXR packages
javax.xml.registry• Connection• RegistryService
…
javax.xml.registry.infomodel• RegistryObject• Service• ServiceBinding
…
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Servlet 2.4 specification
330 pages
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What’s new in Servlet 2.4?
• javax.servlet.ServletRequestListener
• javax.servlet.ServletRequestEvent
• javax.servlet.ServletRequestAttributeListener
• javax.servlet.ServletRequestAttributeEvent
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What’s new in Servlet 2.4?
• improved servlet filter mapping– REQUEST– FORWARD– INCLUDE– ERROR
• SingleThreadModel is deprecated
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JSP 2.0 specification
JSP 1.0 -- 112 pagesJSP 1.1 -- 158 pagesJSP 1.2 -- 268 pagesJSP 2.0 -- 478 pages
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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
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JSP Expression Language
<input name=city value=“${location.city}”>
<input name=state value=“${location.state}”>
<input name=zip value=${location.zip}”>
Example
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EJB 2.1 specification
646 pages
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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
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EJB Timer Service
• enables you to schedule timed notifications
• single event timers
• interval timers
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EJB Timer Service API
• javax.ejb.EJBContext– method: getTimerService
• javax.ejb.TimerService
• javax.ejb.TimedObject
• javax.ejb.Timer
• javax.ejb.TimerHandle
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JMS 1.1 specification
140 pages
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What’s new in JMS 1.1?
JMS 1.1 gives you the ability to use queues and topics in the same transaction
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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
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JCA 1.5
490 pages
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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)
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J2EE Management API 1.0
214 pages
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J2EE Management API
• defines the J2EE Management Model
• management events– event notification
• state management– start, startRecursive, stop
• performance monitoring– runtime statistics
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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
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J2EE Management packages
• javax.management.j2ee
• javax.management.j2ee.statistics
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J2EE Deployment API 1.0
96 pages
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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
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Deployment descriptors
• J2EE 1.2 and J2EE 1.3:– defined by DTD’s
• J2EE 1.4:– defined by XML Schema (XSD)
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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
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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>
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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>
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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
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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)
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J2EE 1.4 SDK
• J2EE 1.4 Application Server
• Schema files– <J2EE_HOME>/lib/schemas
• Command line tools
• Sample applications
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App server admin console
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SDK command line tools
• appclient
• asadmin
• asant
• capture-schema
• deploytool
• jspc
• package-appclient
• verifier
• wscompile
• wsdeploy
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Adventure Builder demo
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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/
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For more information
• http://java.sun.com/j2ee/
• http://java.sun.com/webservices/
• http://java.sun.com/blueprints/enterprise/
• http://www.jcp.org/
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Backup slides
These additional slides are backup material.
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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
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Not covered in this presentation
• JMX 1.2
• JTA
• JTS
• JavaMail