How J2EE Computes for Finance

1
How J2EE Computes for Finance

• Tyler Jewell (tyler_at_bea.com)
• Director, Technical Evangelism
• February 2002

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The Complexity of Finance

• Financial institutions have a variety of systems
  to manage
• multiple databases of different types
• mainframes, servers, and PCs
• message-based and synchronous legacy applications
• applications written in C, CGI, Perl, Cobol,
  Java, Visual Basic

These companies articulate a classic integration
nightmare does J2EE help?
3
J2EE Enables Integration

• There are some key J2EE technologies that enable
  integration today
• JMS
• messaging enablement and loose coupling
• high availability / persistence of messages
• J2EE CA Adapters
• map legacy systems into J2EE
• propagate necessary security / transactional
  contexts
• JDBC drivers
• straight database access

4
Making Sense of it All -- BNY

• The Bank of New York was faced with an
  integration problem
• 15 applications that service BNY Wholesale
  Commercial Cash and Custody Clients
• numerous legacy systems built on different
  technologies
• IMS
• CICS
• VAX
• numerous databases
• UDB
• DB2
• Sybase
• needed to find a unified way of accessing these
  systems

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BNY -- Continued

• Integration challenges, continued
• different applications used different web
  technologies
• JSP / servlet
• CGI / Perl
• various legacy systems leveraged messaging
  systems such as MQSeries

How do you create a unified development platform
given this environment?
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BNY Architecture
Client Tier
Browser
Java Client

• JSPs / Servlets

Financial Verticals

• Transaction Processing
• Event Logging
• Access Control
• Scheduling and Messaging

• WebLogic Server 6.1
• Clustered

Web Tier
Framework
EJBs
Message
Tuxedo
JMS MQSeries
Connectors
IMS
CICS
VAX
UDB
DB2
Sybase
Other
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Ultimate Integration Web Services J2EE

• A web service is a piece of business logic
  located on a network accessible through a
  standards-based framework.
• J2EE Web Services play well together
• J2EE provides the basic infrastructure
• Web Services provides interoperability

Companies are using Web Services to solve
internal integration problems.
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Web Services Technologies

• Web Services technologies are based upon XML
• SOAP
• WSDL
• UDDI
• XML enables business logic to encounter foreign
  and unknown data and to successfully interpret
  it.
• Web Services eliminate the integration silo
  problem
• applications using custom adapters to integrate
  with systems
• applications in the enterprise will never be
  built wholly on a common language

9
J2EE Integrates SOAP
J2EE Container
HTTP Client
1
3
2
SOAPProtocolHandler
JMS Destination
Inbound
Reply
Temp ReplyTo
6
5
4
JMS Clients, Services, or Business Processes
1
3
2
Outbound
SOAPProtocol Handler
Outbound Queue
Solicit
JMSReplyTo
Response
5
6
4
Web Server (.NET/SunONE/Apache)
URL-to-JMS mapping can be Queue and Topic based
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The Next Step

• We are seeing a number of companies using the
  following methodology
• core application development done on J2EE
• applications are exposed as Web Services
• new applications can quickly reuse other
  applications previously exposed as Web Services
• some resources are being migrated to have Web
  Services so that they can be part of the
  aggregation

Offline Come see how this works with a Cajun
demo.