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tony james

Joined: Jul 24, 2001
Posts: 12
Apache Tomcat is said to be a Reference Implementation. but what exactly IS a 'Reference Implementation' ?? How is it different from WebSpere and WebLogic?? And why do we need so many of these servers??
Thanx in advance.....
Sam Dalton
Ranch Hand

Joined: Jul 26, 2001
Posts: 170
A reference implementation is exactly what it say. It is a complete and correct implementation of the Servlet and JSP spec.
The way that this differs from Websphere/Weblogic depends on the version of tomcat that you are using. Version 4 (beta) currently implements the newest public draft of the servlet 2.3 and jsp 1.2 spec, most version of weblogic/websphere do not. Tomcat is normally more current with regards to the spec than any other container.
The reason for having loads of containers is CHOICE. Would you be happy having only one option of servlet container to deploy to? That would go against the way of Java.

<a href="" target="_blank" rel="nofollow">Sam Dalton</a>,<br />Co-author of []Professional JSP 2.0[/URL] (October 2003)<br />Co-author of <a href="" target="_blank" rel="nofollow">Professional SCWCD Certification</a><br />Co-author of <a href="" target="_blank" rel="nofollow">Professional Java Servlets 2.3</a>
tony james

Joined: Jul 24, 2001
Posts: 12
Thanx a lot Sam. u have cleared my doubt brilliantly!!!
Mike Curwen
Ranch Hand

Joined: Feb 20, 2001
Posts: 3695

I would be VERY happy to have one choice... one that WORKED!!

Ok, anti- [ insert App Server vendor here ] over.
It is sorta covered in the JavaRanch Style Guide.
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