apex & soa best of two worlds. who am i? michel van zoest consultant at whitehorses bv...
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APEX & SOABest of two worlds
Who am I?
• Michel van Zoest• Consultant at Whitehorses BV• Application Express Certified Expert• SOA Suite Certified Specialist• Author of Oracle APEX Cookbook (Packt
Publishing)
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OGh APEX World 2015 – Michel van Zoest – APEX and SOA 2
Why this presentation?
• APEX is an excellent tool for exposing data• SOA Suite is an excellent tool for exposing data
• Why not combine them instead of replacing one?
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What is SOA?
• Service Oriented Architecture
• SOA Suite• Webservices
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SOA Application Architecture
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OSB SOA
Webservice
BPEL
Proxy
Business
Service
Database
Adapter
Outside World
File
…..
The Case
Holland BV-Dutch company-APEX application for HR and Sales
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Amerika Inc.-American company-Multiple frontends using webservices
Merging to become Holland Amerika Line-Reusability of both architectures
-Minimal effort
Holland Amerika Line
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APEX Frontend for HR and Sales application
Service Oriented Architecture for HR and
Sales application
DB Webservices
Holland BV Amerika Inc.
How to integrate both applications?
• Step 1: Consume HR Webservice into APEX application
• Step 2: Expose data from Sales to SOA application
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SOA service to APEX report
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APEX Frontend for HR and Sales application
Service Oriented Architecture for HR and
Sales application
DB Webservices
Holland BV Amerika Inc.
Integrate webservice in APEX report
• OSB / SOA Webservice• Webservice reference• XMLTable Select
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Demo 1
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REST service to SOA
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APEX Frontend for HR and Sales application
Service Oriented Architecture for HR and
Sales application
DB Webservices
Holland BV Amerika Inc.
Integrate REST service in SOA
• SQL Workshop -> RESTful Services• REST Adapter in SOA Suite
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RESTRepresentational State Transfer (REST) is a software architecture style consisting of guidelines and best practices for creating scalable web services. REST is a coordinated set of constraints applied to the design of components in a distributed hypermedia system that can lead to a more performant and maintainable architecture.REST has gained widespread acceptance across the Web as a simpler alternative to SOAP and WSDL-based Web services. RESTful systems typically, but not always, communicate over the Hypertext Transfer Protocol with the same HTTP verbs (GET, POST, PUT, DELETE, etc.) used by web browsers to retrieve web pages and send data to remote servers.March 25th 2015
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JSON
JSON (/ˈdʒeɪsən/ JAY-sən), or JavaScript Object Notation, is an open standard format that uses human-readable text to transmit data objects consisting of attribute–value pairs. It is used primarily to transmit data between a server and web application, as an alternative to XML.
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JSON Example
{ "Event":"OGh APEX World" ,"Date":"March 25th 2015" ,"Speakers":[{ "Speaker1":"Steven Feuerstein"
,"Speaker2":"David Peake","Speaker3":"Roel Hartman"
}] ,"Attendees":"350" ,"Location":"Rotterdam"}
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Demo 2
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Extra option: APEX_WEB_SERVICE
• Consume a REST service with APEX_WEB_SERVICE
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Demo 3
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APEX 5.0: APEX_JSON
New package available in APEX 5.0
•Generate JSON•Read JSON•Convert to XMLTYPE
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Demo 4
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Logging SOA Suite
• Customer CaseCustomer Case• APEX Application with reportsAPEX Application with reports• Logging of Events in SOALogging of Events in SOA
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The future
• Application Express 5.1 (Statement of Direction)Application Express 5.1 (Statement of Direction)– Webservices SupportWebservices Support
• ORDS 3.0 (currently in Early Adopters phase)ORDS 3.0 (currently in Early Adopters phase)– JSON Document Store (Oracle 12c only)JSON Document Store (Oracle 12c only)– Auto Generated REST Endpoints for Tables and Auto Generated REST Endpoints for Tables and
ViewsViews
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Any questions
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Contact
http://[email protected]@whitehorses.nl
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