Re: accessing JAXB generated properties of a bean (accessing static inner class)

I want to generate a xml file that can be opened by excel, and that format is pretty
Well known so I can use xslt to output the correct spreadsheetML markup, if I can get
Freemarker to read my java beans



From: Angelo zerr [mailto:[email protected]]
Sent: Friday, March 30, 2012 8:15 AM
To: Daniel Dekany; FreeMarker-user
Subject: Re: [FreeMarker-user] accessing JAXB generated properties of a bean (accessing static inner class)

Hi Robert,

" wanted to use it to generate spreadsheetML(xml that  Excel will open as if it were a xlsx file)"

It seems that you wish do the same thing than our XDocReport<http://code.google.com/p/xdocreport/> project.
Today we have implemented well docx+odt (and a few pptx).
We could start to implement xlsx if you wish and work together?

Jus a question : you wish generate a xlsx from scratch or design your xlsx with MS Excel and set Freemarker directive (it's the goal of XDocReport).

Regards Angelo
Le 30 mars 2012 13:27, Daniel Dekany <[email protected]<mailto:[email protected]>> a écrit :
How the templates sees the objects depends on the ObjectWrapper. As I
see you are using the DefaultObjectWrapper, which means that when you
write someExp.bar in a template, that it does one of these:

- someExp is instanceof Map, in which case it calls someExp.get("bar")
 in Java

- someExp is instanceof org.w3c.dom.Node, in which case it calls
 something like someExp.getElementsByTagNameNS(defaultNS, "bar") in
 Java

- Some other cases exist that are not relevant for you...

- Otherwise it calls someExp.getBar() in Java (or whatever the
 BeanInfo sais the reader method is)

and if you have someExp[numericalIndex] then it will try to do
someExp.get(numericalIndex), the List method. (Unless it's also a
Map... I can't remember which one had priority in that case.)

So keeping these in mind, you thing your code should work? I don't
know... I don't see much from the source code excerpts given. Like how
a NetworkList ended up being a scalar (i.e., a string), I don't know.

Why is it relevant that the classes are generated with JAXB? I mean,
it should be clear that to use the XML-wrapper, the objects had to
implement org.w3c.dom.Node.

--
Best regards,
 Daniel Dekany


Friday, March 30, 2012, 5:55:30 AM, Walker, Robert wrote:

> Hi all, I was turned onto freemarker today and really impressed
> with it, and wanted to use it to generate spreadsheetML
> (xml that  Excel will open as if it were a xlsx file)
>
> I am having problems accessing properties buried a few layers deep.
>
> Basically, I have a   OrganisationInfo class which contains an
> OrganisationInfo. NetworkList object,
> And that networkList property contains a List of Network objects, from which I need to get
> property values.
>
> I am wondering if JAXB has generated something freemarker can't be used to access in it's template.
>
> I want to try something like
>
> cfg.setObjectWrapper(  new DefaultObjectWrapper() );
> SimpleHash root = new SimpleHash();
> // expose JAXB generated java object
> root.put("organisationInfo", organisationInfo);
>
> then my template has accessing syntax like
>
> <h1> ${organisationInfo.networkList[0].tadigCode} </h1>
>
> Is this possible with freemarker? Is there an example of this anywhere?
> I get various errors Expected hash. organisationInfo.networkList[0]
> evaluated instead to freemarker.template.SimpleScalar.
>
> Thanks all
>
>
>
>
> I have JAXB generated classes like this
>
> OrganisationInfo.java
> =====================
> @XmlRootElement(name = "OrganisationInfo")
> public class OrganisationInfo
> {
> @XmlElement(name = "NetworkList", required = true)
> protected OrganisationInfo.NetworkList networkList;
>
> .
> .
> .
>
> @XmlAccessorType(XmlAccessType.FIELD)
> @XmlType(name = "", propOrder = {"network"})
> public static class NetworkList
> {
>               @XmlElement(name = "Network", required = true)
>         protected List<Network> network;
> .
> .
> }
> }
>
>
> Network.java
> ============
> @XmlRootElement(name = "Network")
> public class Network
> {
>     @XmlElement(name = "TADIGCode", required = true)
>     protected String tadigCode;
>
>       .
>       .
>
> }

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