users@jaxb.java.net

Re: JAXB XML output format questions

From: Wolfgang Laun <wolfgang.laun_at_gmail.com>
Date: Mon, 2 Mar 2009 08:37:41 +0100

Indenting occurs modulo 8, in
com.sun.xml.bind.v2.runtime.output. IndentingUTF8XmlOutput
you find
   int i = depth%8;

You could patch this.

Setting the JAXB_FORMATTED_OUTPUT property
is meant to improve readability, which is bound to suffer if the
indentation keeps growing and growing.
-W


On Mon, Mar 2, 2009 at 5:14 AM, Hansen Candrawinata <
hansen.candrawinata_at_gmail.com> wrote:

>
> Hi, I have Java classes with the following structure (the class names do
> not
> imply anything, I was just making them up).
>
> package test;
>
> import java.util.ArrayList;
> import java.util.List;
>
> import javax.xml.bind.JAXBContext;
> import javax.xml.bind.JAXBException;
> import javax.xml.bind.Marshaller;
> import javax.xml.bind.annotation.XmlAccessType;
> import javax.xml.bind.annotation.XmlAccessorType;
> import javax.xml.bind.annotation.XmlAttribute;
> import javax.xml.bind.annotation.XmlElement;
> import javax.xml.bind.annotation.XmlElementWrapper;
> import javax.xml.bind.annotation.XmlRootElement;
> import javax.xml.bind.annotation.XmlValue;
>
> @XmlRootElement
> public class Test
> {
> @XmlAccessorType(XmlAccessType.FIELD)
> static class Machine
> {
> @XmlElementWrapper(name="servers")
> @XmlElement(name="server")
> List<Server> servers = new ArrayList<Server>();
> }
>
> @XmlAccessorType(XmlAccessType.FIELD)
> static class Server
> {
> Threshold t = new Threshold();
> }
>
> @XmlAccessorType(XmlAccessType.FIELD)
> static class Threshold
> {
> RateThreshold load = new RateThreshold();
> }
>
> @XmlAccessorType(XmlAccessType.FIELD)
> static class RateThreshold
> {
> @XmlAccessorType(XmlAccessType.FIELD)
> static class Rate
> {
> int count;
> Period period = new Period();
> }
>
> @XmlAccessorType(XmlAccessType.FIELD)
> private static class Period
> {
> @XmlAttribute
> private String type = "second";
>
> @XmlValue
> private float period;
> }
>
> Rate min = new Rate();
> Rate max = new Rate();
> }
>
> @XmlElementWrapper(name="machines")
> @XmlElement(name="machine")
> List<Machine> machines = new ArrayList<Machine>();
>
> public static void main(String[] args)
> {
> Machine m = new Machine();
> Server s = new Server();
> s.t.load.max.count = 10;
> s.t.load.min.count = 1;
> m.servers.add(s);
>
> Test t = new Test();
> t.machines.add(m);
>
> JAXBContext jaxbContext;
> Marshaller marshaller;
> try
> {
> jaxbContext = JAXBContext.newInstance(Test.class);
> marshaller = jaxbContext.createMarshaller();
> marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
> marshaller.marshal(t, System.out);
> }
> catch (JAXBException e)
> {
> e.printStackTrace();
> }
> }
> }
>
> The problem I am having is with the XML output generated by JAXB when
> marshalling a Test instance. The XML output would always look like the
> following:
>
> <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
> <test>
> <machines>
> <machine>
> <servers>
> <server>
> <t>
> <load>
> <min>
> <count>1</count>
> <period type="second">0.0</period>
> </min>
> <max>
> <count>10</count>
> <period type="second">0.0</period>
> </max>
> </load>
> </t>
> </server>
> </servers>
> </machine>
> </machines>
> </test>
>
> As you can see, some elements are not being indented properly (that is, the
> deepest elements, count and period). Why is that? Is there something
> wrong
> with the way I created the JAXB context? Or is there a maximum limit to
> how
> many elements that can be indented recursively by JAXB? How could I fix
> this? Note that I have also set JAXB_FORMATTED_OUTPUT to true, but still
> get the improper indentation.
>
> Thanks.
> --
> View this message in context:
> http://www.nabble.com/JAXB-XML-output-format-questions-tp22281836p22281836.html
> Sent from the java.net - jaxb users mailing list archive at Nabble.com.
>
>
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