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From Alexander Weinmann <aweinm...@bct-technology.com>
Subject Re: XObjects / document fragments
Date Thu, 21 Sep 2000 10:47:52 GMT
I find this very interesting, but the whole 
package org.apache.cocoon.framework is missing
in C2. Does somebody know what 
XObject is replaced by in C2?


Jeremy Quinn wrote:
> 
> At 16:27 +0200 20/09/00, Echoes wrote:
> >  Hello,
> >
> > I'm trying to insert in the output tree the
> >value of some attributes from a java object.
> >I can do this in the xsp page with this kind of
> >code :
> >
> >
> ><xsp:content><tag_name><xsp:expr>myObject.getName()</xsp:expr></xsp:content>
> >
> > It's alright when there is only a few fields, but becomes a nightmare
> >with complex objects.
> >
> > I heard about document fragments and XObjects that can do the job in
> >a cleaner way, but I can't find any description, or better a small
> >example.
> 
> I have been using XObject for implementing TagLibs, this is an untested and
> trivial example of the general technique.
> 



> in your xsp:
> 
> <xsp:expr>new myObject()</xsp:expr>
> 
> myObject.java
> 
> import org.apache.cocoon.framework.XObject;
> import org.w3c.dom.*;
> import org.xml.sax.*;
> 
> public class myObject() implements XObject {
> 
>         String message = new String("you got me Geeza!");
> 
>         public myObject() {
>                 // set me up
>         }
> 
>         public void toDOM(Node node) {
>                 // this is used by C1
>                 Document doc = node.getOwnerDocument();
>                 node.appendChild(doc.createTextNode(message));
>         }
> 
>         public void toSAX(DocumentHandler handler) {
>                 // this is used by C2
>                 // and I do not know how to write it yet :)
>         }
> 
>         public String toString() {
>                 // used by <xsp:attribute name="blah">new myObject()</xsp:attribute>
>                 return message;
>         }
> 
> }
> 
> Hope this helps.
> 
> regards Jeremy
> 
> --
>    ___________________________________________________________________
> 
>    Jeremy Quinn                                           Karma Divers
>                                                        webSpace Design
>                                             HyperMedia Research Centre
> 
>    <mailto:sharkbait@mac.com>                    <http://www.media.demon.co.uk>
>     <phone:+44.[0].20.7737.6831>        <pager:jermq@sms.genie.co.uk>
> 
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-- 
Alexander Weinmann | Web Developer
BCT Technology AG | D-77731 Willst├Ątt/Germany | www.bct-technology.com

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