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General questions on Portal servers

 
Sajee Joseph
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Hello all,
I am a newbie to the world of Portal servers.
It would be very helpful if i can have the following questions answered.
1. Is it required for a Portal to be hosted on a Application Server?
2. Can a Portal Application be independent of an Application server? If a
Portal server is chosen, is my Application server already chosen?

3. Can a Portal Application be ported along with Portal server to another
Application server?
And most important of all
--------------------------
4. Can a Portal page hosted on a Portal server, show applications which are
hosted on some other Application server?

Thank you for your valuable time and support.
Links to any supporting documents on the net will be very helpful.
Thanks,
Sajee Joseph
 
Lasse Koskela
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The answers depend on whether by "Portal" do you mean a portal application implemented against the Portlet API (JSR 168) or some proprietary portal API. For example, Jetspeed is a portal framework and runs on Tomcat (web container, not an application server). Then again, most portal implementations come from appserver vendors such as IBM and BEA and thus run on an application server. The point being, there are implementations of the Portlet API on both web and app containers so if you comply with JSR 168 you should be able to switch from appserver A to appserver B to webserver C without major problems.
This should've answered to 1-3. Unfortunately, I am not able to answer to your last question.
[ August 07, 2003: Message edited by: Lasse Koskela ]
 
Chad McGowan
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Originally posted by Sajee Joseph:
And most important of all
--------------------------
4. Can a Portal page hosted on a Portal server, show applications which are
hosted on some other Application server?


Yes, a portal page can display 'portlets' that are hosted by anyone.
 
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