If you are stuck with a bad post processor, than you will have to post process
what xerces spits out with something like
xmlAsAString = xmlAsAString.replaceAll("<([^>]*)/>", "<$1></$1>");
-----Original Message-----
From: "Ian Hummel" <hum...@parityinc.net>
Sent: Monday, December 15, 2008 3:08pm
To: "j-users@xerces.apache.org" <j-users@xerces.apache.org>
Subject: Re: How to preserve an empty text node?
Hi Michael,
I know <tag></tag> and <tag/> are the same, but unfortunately the
buggy-parser-that-cannot-be-changed on the other end doesn't :)
DocumentBuilder db = dbf.newDocumentBuilder();
Document d = db.newDocument();
Element root = d.createElement("root");
Element tag = d.createElement("tag");
tag.setTextContent("");
d.appendChild(root);
root.appendChild(tag);
System.out.println(XmlUtils.formatXmlAsString(d));
This always outputs <tag/> and never <tag></tag> like I need it to.
- Ian.
On Dec 12, 2008, at 10:33 PM, Michael Glavassevich wrote:
Hi Ian,
> I need to create XML that looks like this whenever the value of
> "tag" is "" (the empty string):
>
> <root>
> <tag></tag>
> </root>
Why? <tag/> and <tag></tag> have the same meaning. Whichever form is chosen by
the serializer should have no significance.
> I am more concerned in preserving the empty text node when I
> serialize to e.g. a file... not so much the parsing.
>
> Any one else have any ideas?
Would help if you showed your code for serializing the document.
> Are blank text nodes like that invalid XML or something?
In the snippet you posted you created a text node with the '\t' (tab)
character in it. That isn't "blank" or empty.
Thanks.
Michael Glavassevich
XML Parser Development
IBM Toronto Lab
E-mail: [mailto:mrgla...@ca.ibm.com] mrgla...@ca.ibm.com
E-mail: [mailto:mrgla...@apache.org] mrgla...@apache.org
Ian Hummel <[mailto:hum...@parityinc.net] hum...@parityinc.net> wrote on
12/12/2008 09:21:47 AM:
> Hi, I didn't really understand how that's going to help.
>
> I am more concerned in preserving the empty text node when I
> serialize to e.g. a file... not so much the parsing.
>
> Any one else have any ideas? Are blank text nodes like that invalid
> XML or something?
>
> On Dec 11, 2008, at 11:53 AM, [mailto:ravika...@gmail.com]
> ravika...@gmail.com wrote:
>
> Hi Lan,
>
> I think we can Implement by LSParser Interface. [http://java.sun]
> http://java.sun.
> com/j2se/1.5.0/docs/api/org/w3c/dom/ls/LSParser.html
> this link may help you.
>
> Regards,
> Ravikanth
> On Thu, Dec 11, 2008 at 7:36 PM, Ian Hummel <[mailto:hum...@parityinc.net]
> hum...@parityinc.net> wrote:
> Hi everyone,
>
> I need to create XML that looks like this whenever the value of
> "tag" is "" (the empty string):
>
> <root>
> <tag></tag>
> </root>
>
> I've tried the following:
>
> DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
> DocumentBuilder db = dbf.newDocumentBuilder();
> Document d = db.newDocument();
> Element root = d.createElement("root");
> Element tag = d.createElement("tag");
> d.appendChild(root);
> root.appendChild(tag);
> Text text = d.createTextNode("\t");
> tag.appendChild(text);
>
> but I always end up with XML like this:
>
> <root>
> <tag/>
> </root>
>
> Is there a way to force empty text nodes to get "denormalized" ?
>
> Thanks,
>
> Ian.
>
> --
> Ravikanth
