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

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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