Re: Xindice - Replace Node

On Mon, Jun 2, 2008 at 6:54 PM, sfurrh <[email protected]> wrote:
>
> Nevermind, I figured it out:
>                        Update upd=new Update(Update.AFTER,xpath,xml);
>                        String updStr=upd.toString();
>                        System.out.println("update="+updStr);
>                        uservice.update(updStr);
>
>                        Update rmv=new Update(Update.REMOVE,xpath+"["+matches+"]","");
>                        String rmvStr=rmv.toString();
>                        System.out.println("remove="+rmvStr);
>                        uservice.update(rmvStr);
>
> Where my Update class is just a utility to generate the xupdate string and
> "xml" is the new xml node and matches (in a while loop) is the index of the
> matching node.

Are you trying to replace all "config" elements in all documents in a
collection? If replacement nodes are all the same, there is no need to
have a loop, and the query may look similar to this:
<xupdate:modifications version='1.0'
xmlns:xupdate='http://www.xmldb.org/xupdate'>
<xupdate:rename select='/site/config'>config1</xupdate:rename>
<xupdate:insert-before select='/site/config1'>
<xupdate:element name="config">
<xupdate:element name="icon">images/myicon.jpg</xupdate:element>
<xupdate:element name="title">My great new site</xupdate:element>
</xupdate:element>
</xupdate:insert-before>
<xupdate:remove select='/site/config1'>
</xupdate:remove>
</xupdate:modifications>

Even if the replacement nodes are different, I would recommend to move
the query for deleting nodes out of the loop - each query results in
iterating over all documents in a collection, that would affect
execution time of the code.

Regards,
Natalia

>
>
>
> sfurrh wrote:
>>
>> I am new to xindice and xmldb (though not new to xml) and I am wondering
>> how I would go about replacing nodes.  Xupdate works fine if i want to
>> replace the text content of a single node but how would I go about
>> replacing an entire node that is not a collection.  For example:
>> my collection looks like this:
>>             <site xmlns:src="http://xml.apache.org/xindice/Query" id="1"
>> src:col="/db/ArtSite" src:key="1">
>>                 <config>
>>                     <icon />
>>                     <title>New Site</title>
>>                 </config>
>>                 <owner>sean</owner>
>>                 <studio>
>>                     <pieces />
>>                 </studio>
>>                 <preferences />
>>             </site>
>>
>> and i want to change the config node to look like this:
>>                 <config>
>>                     <icon>images/myicon.jpg</icon>
>>                     <title>My great new site</title>
>>                 </config>
>>
>> how would I do it without simply iterating through all of the nodes and
>> xupdating them individually?
>>
>> thanks for any info.
>>
>> Sean
>>
>>
>
> --
> View this message in context: http://www.nabble.com/Xindice---Replace-Node-tp17608708p17612662.html
> Sent from the Xindice - Dev mailing list archive at Nabble.com.
>
>