PWB504 Interoperability and Application Development in an Open Environment

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PWB504 Interoperability and Application
Development in an Open Environment
Dean Jones TeamSybaseCEO of PowerObjects
dean_at_powerobjects.com(612) 339-3355
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Who we are

• PowerObjects
• Multi-Million Dollar Company
• Complete Solution Provider
• Develop Custom Systems
• Specialize in Web Development
• Offer Web Application Hosting
• Certified Developers on Staff
• Java, Microsoft and Sybase Certified
• Member of Team Sybase

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Agenda

• The Problem
• IT Industry Struggles
• Moving Toward Open Solutions
• A Solution PowerBuilder 9
• Web Services
• EJB

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IT Industry Struggles

• Internet Boom
• Created many of ITs problems
• Everything had to run on the Web
• Companies spent endless amounts of money
• Which in turn drove up billing rates
• Which in turn caused everyone and their dog to
  get an IT degree or certificate
• Outcome
• We have companies developing on new technologies
  at very high billing rates using developers that
  have never developed a system in their career.
• Failure

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IT Industry Struggles

• Quotes from industry experts
• "There is tons of money being spent and
  expectations are forever lowered. It's a
  nightmare. The net effect is very poor
  applications that cost lots of money. I think
  most people think they're going to find the light
  at the end of the tunnel at some point...."
• - Carson Hager Cynergy Systems 10/02

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IT Industry Struggles

• Quotes from industry experts
• Is Complexity Hurting Java
• Article by Jason Weiss
• Specifications don't solve business problems
  they solve technology problems
• - Jason Weiss 10/02
• Personified Technologies, LLC

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IT Industry Struggles

• The Glory Days Are Over
• No more endless money for IT projects
• Companies are being constantly asked to deliver
  more with less
• Return to ROI
• Problem How to develop systems quickly and
  efficiently
• Companies have been sold the idea that systems
  can be developed quickly and efficiently by using
  a new programming language.

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IT Industry Struggles

• What language should we develop in?
• C/C, Java, .NET, PowerBuilder, Visual Basic, C
• What application server should we use?
• WebLogic, WebSphere, EAServer
• What architecture should we use?
• .NET, J2EE
• Companies are making corporate decisions before
  knowing the problems theyre solving
• I use the analogy of a race team, You dont buy
  a race-car before you know what type of track
  youre going to be racing on.

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Choosing a Technology or Solution

• Companies are standing still trying to
  standardize on a language and technology
• Pipe Dream
• Not solving user problems
• Companies are blaming the programming language
  for project failure
• Many projects fail because no one cares about
  adding value or ROI
• Focus is on Internet (World Wide Web), not a
  solution
• Focus is on technologies instead of the business

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Choosing a Technology or Solution

• Companies cant focus on the technologies
• No company can afford to rewrite all their
  business solutions in a new technology
• Too expensive and would take too long
• The technology selected today will change again
  in 2-3 years
• Solutions developed today would need to be
  rewritten in 2-3 years if attempting to
  standardize on a given technology because the
  technology will continue to change.
• Business solutions today will still be here in
  2-3 years
• The business problem solved today will still be
  part of our business tomorrow.

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Choosing a Technology or Solution

• Companies that will be successful
• Focus on solutions, not technologies
• Reuse business solutions
• Reuse today's Visual Basic, PowerBuilder, Java
  and C/C
• Business solutions need to be open so new and
  existing business solutions can access them
• Develop tomorrow with any language
• If the solution is open, any language will have
  access to it. The solution will not need to be
  rewritten in the new technology

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Moving toward open solutions

• Companies have many in-house solutions
• Cant abandon these solutions as we develop new
  solutions
• Companies need to be open to new solutions that
  fit their organizations
• .NET, J2EE, CORBA, EJB Solutions
• Visual Basic, C, C/C, Java, PowerBuilder, COBOL

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Moving toward open solutions

• The key is to focus on Open Solutions

WebLogic Java
EAServer JavaC/CPowerBuilderVisual Basic
.NET Visual BasicCC/C
EJB
XML
CORBA
Web Services
WebSphere JavaC/C
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PowerBuilder 9 The Solution

• DataWindow XML support
• PowerBuilder Native Interface
• JSP Targets
• Web services for JSP clients
• Web services for Windows clients
• EJB clients for third-party application servers

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Web Services

• What are Web services?
• A URL-addressable resource that performs
  functions and provides answers
• Self-Describing Using a Web Services Definition
  Language (WSDL) to describe the attributes the
  service provides in XML
• Using SOAP and WSDL, a collection of functions
  published remotely as a single entity can become
  part of your PowerBuilder application
• Invoking Web services through SOAP requires
  serialization and deserialization of data types,
  and the building and parsing of XML-based SOAP
  messages

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PowerBuilder

• PowerBuilder 9 has two wizards
• PowerBuilder applications to access Web services

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PowerBuilder
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PowerBuilder - JSP

• JSP Web Service Proxy
• Automate your JSP client

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PowerBuilder - JSP

• Declare needed classes
• Call our tag

lt_at_ page import"GoogleSearchResult" gtlt_at_
page import"ResultElement" gtlt_at_ page
import"DirectoryCategory" gtlt_at_ taglib
uri"GoogleSearchService.tld" prefix"demo" gt
ltdemodoGoogleSearch lr"" oe"" restrict""
filter"false" key"lTcmV/xQFJP012AWtbKS768YRdO39R
Ege9" q"powerobjects" maxResults"10" ie""
start"0" safeSearch"false" /gt
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PocketSoap
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.NET Calling PowerBuilder

• .NET can call PowerBuilder two ways
• COM-CORBA Bridge
• Web Services

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EJBs

• A PowerBuilder application can act as a client to
  an EJB component running on an application server
  that is J2EE compliant
• Sybase EAServer
• IBM WebSphere
• BEA WebLogic

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EJBs Connection

• When calling EJBs you need to tell PB about
  needed Java classes

PowerBuilder Objects
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EJB Proxy

• Setup the classpath and class name
• ejb20_basic_beanManaged_client.jar
• weblogic.jar
• pbejbclient90.jar
• rt.jar

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EJBs Lookup

• To lookup an EJB you need three pieces of
  information
• Proxy Name
• example "accounthome
• JNDI Name
• example "ejb20-beanManaged-AccountHome
• Home Class
• example "examples.ejb20.basic.beanManaged.AccountH
  ome
• How do we know or get these values?

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EJB JNDI
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EJB Remote Name
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EJBs Lookup

• proxyName "accounthome"
• jndi_name "ejb20-beanManaged-AccountHome"
• homeClass "examples.ejb20.basic.beanManaged.Acco
  untHome"
• myhome conn.lookup(proxyName, jndi_name,
  homeClass )
• MyBean myHome.create( Dean, 10000 )

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EJBs Method

• After Connecting, Looking up our remote EJB we
  can call methods against the EJB.

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Open Solution

• VB.NET Calling PowerBuilder Component

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Open Solution

• PowerBuilder Calling .NET and BEA Web Service

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Open Solution

• Java Client Calling PowerBuilder Web Service

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Open Solution

• PowerBuilder Calling WebLogic EJB

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Open Solution

• ASP.NET Calling PowerBuilder Result Set

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Open Solution

• PocketBuilder and PocketSoap - PocketPC

Mobile Users, Wireless Connections, Access
Databases, Access Application Servers, Store and
Forward, Replicate
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Summary.

• IT has had many struggles
• We talked about technology vs. solutions
• We discussed a need for open solutions
• PowerBuilder 9 allows you to continue to move
  forward with open solutions today
• Web Services opens up PowerBuilder 9
• Consume and Publish
• EJBs Extend PowerBuilder 9
• Closing point

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FYI - IT is a Support Industry

• Technology advancements have been so large that
  corporations have started believing technology is
  their business
• Dont forgettechnologys role is to support the
  business
• Corporations will have no need for technology if
  they cant sell more products and/or services
  better and faster than their competition.

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Look for smlPortal

• Sybase Partner CD

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Questions
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Grab one of my business card
Dean JonesChief Executive Officerwww.powerobject
s.com
401 2nd Ave. S. Suite 843Minneapolis, MN
55401Office 612.339.3355cell 612.701.4017fax
612.339.4433 dean_at_powerobjects.com