[MarkLogic Dev General] Using xdmp:replace to replacing empty node?

[Eric Palmitesta]

I believe xdmp:node-replace only works on nodes in the database.  In 
other words, this won't work...

let $x := <hello/>
let $y := xdmp:node-replace($x, <goodbye/>)
return $x

...because I just constructed $x on the fly (in memory).

This will work, though:

let $x := doc('/path/to/file.xml')/xpath/to/hello
(: assume $x is now <hello/> :)
let $y := xdmp:node-replace($x, <goodbye/>)

Note xdmp:node-replace returns empty(), so in both cases $y will be (), 
I'm just using it to do some work.

Cheers,

Eric

Schwartz, Christine wrote:
> I wrote this post without enough coffee this morning.
> 
> I meant xdmp:node-replace.
> 
> Thanks,
>  
> Chris
> 
> Christine Schwartz
> Metadata Librarian
> Princeton Theological Seminary Libraries
>  
>  
> ________________________________________
> From: general-bounces at developer.marklogic.com [mailto:general-bounces at developer.marklogic.com] On Behalf Of Schwartz, Christine
> Sent: Wednesday, February 11, 2009 10:00 AM
> To: general at developer.marklogic.com
> Subject: [MarkLogic Dev General] Using xdmp:replace to replacing empty node?
> 
> Hi,
> 
> I am new to this list and new to XQuery and Mark Logic.
> 
> Can I use xdmp:replace on an empty node: <dc:relation/>?
> 
> I'm getting the error message "Cannot update constructed nodes."
> 
> I've used this function before to without any problem.
> 
> Thanks,
>  
> Chris
>  
> Christine Schwartz
> Metadata Librarian
> Princeton Theological Seminary Libraries
> christine.schwartz at ptsem.edu
> (609) 497-7938
> 
> 
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