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Web Services Development made easy Olivier Le Diouris Principal Product Manager.

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Presentation on theme: "Web Services Development made easy Olivier Le Diouris Principal Product Manager."— Presentation transcript:

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2 Web Services Development made easy

3 Olivier Le Diouris Principal Product Manager

4 Agenda The Scope Database as a Service Provider Database as a Service Consumer Future

5 Agenda The Scope Database as a Service Provider Database as a Service Consumer Future

6 The Scope Web Services Technology Stack – SOAP – WSDL – UDDI SOAP Architecture : Services & Service Providers JSR-109 : J2EE Web Services Benefits of J2EE Internet Web Services

7 Web Services Technology Stack SOAP UDDI WSDL Uses the Internet, firewall friendly Language & Platform agnostic Good interoperability, NO portability Uses XML messaging Stateless C, C++ Perl VisualBasic Java C# PL/SQL Cobol ADA Fortran Pascal APL SPL

8 SOAP Services and Providers A SOAP Request A SOAP Service Greetings, Stock Quotes, Directions, Currency Rates, Traffic, … A SOAP Provider Java, Perl, Shell Script, PL/SQL, VB, …

9 Web Services & J2EE JDBC JCA JMS Servlet JSP EJB war-files ear-files J2SE J2ME JAX-P JAX-M JAX-R JAX-RPC JAX-B … more! Java C, C++ Perl Visual Basic Java C# PL/SQL Cobol ADA Fortran Pascal APL SPL QuickBasic Smalltalk Prolog JSR 109

10 How to deploy a Java Web Service the J2EE way Java Class(es) Java Interface WSDL document Bundled as a J2EE ear-file Brings portability to a Web Services application OC4J

11 D E M O N S T R A T I O N A J2EE Web Service and its Proxy

12 Agenda The Scope Database as a Service Provider Database as a Service Consumer Future

13 Database as a Service Provider Already existing logic or data-centric process running in the Database To be published as a J2EE Web Service (JSR 109) Use JPublisher to generate the java wrapper

14 Rationale Use Oracle JPublisher to generate a Java wrapper Publish the Java Wrapper as a JSR-109 compliant Web Service Will take advantage of the J2EE containers data-sources and connection pooling mechanism

15 Oracle JPublisher Available since Oracle 8 Can manage unsupported types Today, uses SQLJ Available from the command line, as well as from IDE Wizards

16 D E M O N S T R A T I O N Exposing PL/SQL as a Web Service

17 Agenda The Scope Database as a Service Provider Database as a Service Consumer Future

18 Database as a Service Consumer Web Services access from the Database Immediately available for any application accessing the Database (SQL Statement, Oracle PL/SQL, Oracle Forms, etc) Use the appropriate features wherever they run Internet Web Services

19 Rationale Generate a java stub or proxy for any Web Service, after the associated WSDL Publish this stub or proxy as a Java Stored Procedure Result: Its another PL/SQL executable Internet Web Services

20 Requirements Store the libraries required by the SOAP client in the Database (use loadjava) Grant the appropriate privileges to access external resources Internet Web Services

21 D E M O N S T R A T I O N Consuming a Web Service from the Database

22 Agenda The Scope Database as a Service Provider Database as a Service Consumer Future

23 Whats coming SQL Query and DML – Additional Returned Data Formats Direct Java-to-Java invocation AQ /Streams operations XML Operations Asynchronous/Deferred Service execution JAX-RPC Client SOAP stack Automatic Table Function Generation Enhanced Tooling – Command line – JDeveloper

24 otn.oracle.com Join Over 3,000,000 Developers! Free Software Downloads Free Technical Advice

25 For more information TheServerSide.com J2EE Community – Largest J2EE site in the world – 305,000 registered members – Enterprise Java News – Design Patterns – Free Books – Product Reviews – Articles and Video Interviews

26 A Q & Q U E S T I O N S A N S W E R S

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