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Icefaces custom tag with facelets

I've been struggling with creating my own icefaces tag that I could use everywhere it's needed. There are many tutorials on the internet, BUT.. I couldn't get it work anyway.

When I looked at the sourcecode on the webpage, the tag <ticker:ticker /> was there directly in the HTML sourcecode. This is wrong, because I expected the rendered ouput there.

One whole week I tried to solve this problem trying almost everything. But then, finally, I found it.

So, what was the problem? When you are using Facelets with your JSF/Icefaces, the TLD (tag library descriptor) files are for nothing. Even if I tried to place them everywhere. You have to create the equivalent of the TLD file for the Facelets - the XML file describing the tag structure. In this case it's ticker.taglib.xml

The tag descriptor for the facelets

There you specify the component's class - Ticker, and it's renderer - TickerRenderer. Now, you don't need the TickerTag as suggested when using JSP in many tutorials around the internet.

Also don't forget to tell the JSF to recognize your taglib and place this XML snippet into web.xml (just the first reference to xml, the second is when you want to use also another taglib - eg. the tomahawk components)
web.xml facelets libraries

Put the reference to your tag descriptor into web.xml

    <context-param>
        <param-name>facelets.LIBRARIES</param-name>
        <param-value>
            /WEB-INF/ticker.taglib.xml;/WEB-INF/tomahawk.taglib.xml
        </param-value>
    </context-param>

JSF source with a custom tag

Rendered output

I wonder why this 'trick' hasn't been described yet in some tutorial. So, I hope you will find this remark useful and it will help you when creating your own JSF components.

Comments

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Thanks!

Jeff (198.182.194.xxx) 2007-11-09 21:35:22

This was very helpful. Thanks so much for sharing this!!

Reply Quote

developer

Tam (206.108.31.xxx) 2008-05-23 21:10:08

Thanks for you answer. I was wondering if you can explain how to write the renderer for the class as most JSF custom components tutorials explain how to build a Tag file.
thanks

Reply Quote

same issue

michelle (12.107.188.xxx) 2008-05-28 12:56:50

TLD's seem to be a major headache the only way we've been able to deploy icefaces custom components, we're working on our 3rd custom component is to include the tld, faces-config and the facelets tags in the icefaces-comp-jar itself. The other issue is its really a pain to create the necessary tag java module. On the bright side the api is very rich and coding icefaces components are easier than traditional jsf components.

Reply Quote

Java dev (198.140.4.xxx) 2009-10-13 22:41:30

Thanks. This was great and very helpful!

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