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listener tag in jsp tab library

Raj Paul
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Joined: Jul 09, 2002
Posts: 77
Can anybody say how listener tag is used in tag library ?? what kind of actions it receives
Thanks
Raj Paul
Shawn Bayern
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Joined: May 06, 2002
Posts: 160
Originally posted by Raj Paul:
Can anybody say how listener tag is used in tag library ?? what kind of actions it receives
Thanks
Raj Paul

What do you mean by a "listener" tag? Are you speaking of a specific tag library or a general concept?


Shawn Bayern<br />"JSTL in Action" <a href="http://www.jstlbook.com" target="_blank" rel="nofollow">http://www.jstlbook.com</a>
Raj Paul
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Joined: Jul 09, 2002
Posts: 77
Use of <listener> element in tag library descriptor file.

Raj Paul
chanoch wiggers
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Joined: May 24, 2001
Posts: 245
they can be used to react to session and request level lifecycle events, such as when an attribute is added to the session, or removed from the session. In tags I guess this would translate to changing the behavior of a tag according to whether an attribute has been successfully been added to the request or session level. I havent seen anyone use these to date


chanoch<p><a href="http://www.amazon.com/exec/obidos/ASIN/1861007736/" target="_blank" rel="nofollow">Author of Professional Apache Tomcat</a></p>
Raj Paul
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Joined: Jul 09, 2002
Posts: 77
Hi chanoch
I have tried the events...but nothing is happening ? Anybody tried this in any server. i am using orion server.
Raj Paul
Ruilin Yang
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Joined: Jan 06, 2002
Posts: 150
Lisening tag is a new feature of the new version of JSP. So in order to test it you should make sure you app server supports the new JSP spec JSP 2.3.
Shawn Bayern
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Joined: May 06, 2002
Posts: 160
The <listener> element in the JSP 1.2 TLD is useful for registering a Servlet 2.3-style listener on whose behavior a taglib depends. As an example, a tag library might want to ensure that certain values are initialized before running.
Raj Paul
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Joined: Jul 09, 2002
Posts: 77
Hello everybody,
anybody can give me a URL where i can find examples abt this ?

Thanks & Regards
Raj Paul
 
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subject: listener tag in jsp tab library