 | Level: Intermediate Stefan Hepper (sthepper@de.ibm.com), WebSphere Portal Programming Model Architect, IBM
28 Jun 2004 Portlet developers can read this paper to see a side-by-side comparison of the Portlet API provided by IBM with the Websphere Portal V5.x product, and the JSR 168 Java Portlet Specification, which is developed through the Java Community Process. The paper describes the conceptual differences between the two APIs, provides specific examples, and discusses the relationship to the Web Service for Remote Portlets (WSRP) service. It also offers advice for programming portlets with the IBM Portlet API so you can easily convert them to the JSR 168 API.
This paper is provided As-Is. A reviewed, edited, and summarized version, which was also written by Stefan Hepper (published December 2003), is available on developerWorks; it is called Comparing the JSR 168 Java Portlet Specification with the IBM Portlet API.
Download | Description | Name | Size | Download method |
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| Article in PDF format | 0406_hepper-Whitepaper-JSR168-WP5PortletAPI-comparison.pdf | .9 MB | FTP|HTTP |
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About the author | 
| | Stefan Hepper is the architect responsible for the WebSphere Portal programming model and public APIs. He was co-leader of the Java Portlet Specification JSR 168. He also started the Pluto project at Apache, which provides the reference implementation of JSR 168. Stefan has delivered a number of lectures at international conferences, such as JavaOne, published various papers, and is co-author of the book Pervasive Computing (Addison-Wesley 2001). His research interests are component-based software architectures, pervasive infrastructures, and, of course, portals and portlets. Stefan received a Diploma of Computer Science from the University of Karlsruhe, Germany, and in 1998 he joined the IBM Böblingen Development Laboratory.
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