Try this
<?xml version="1.0" encoding="UTF-8"?>
<betwixt-config>
<class name='com.my.CollectionWrapper' >
<element name='elements'>
<element property='elements' updater='addElement'/>
</element>
</class>
notice that i changed 2 things:
- the name of the property is elementS (plural), not element
- I added an updater to specify the method that betwixt should invoke
(it may be not necesary)
I hope to be helpfull
PS: Excuse my terrible english. I am not an english native speaker
On 2/7/06, Igor Marakov <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I have a simple (or so it seems) problem.
> There is a piece of XML that represents a list of items.
> I need to convert this XML to the List of beans.
> I must be doing something very wrong but for couple days now I am not able
> to come up with combination of code and configuration that would work. I can
> see beans being created but assignment into List never happens. At the same
> time running single beans does work.
> Obviously I'm missing something big time here;
> Any help will be greatly appreciated.
> Relevant code pieces and configuration is below.
>
> Thanks,
> Igor
>
> **** SETUP ( done once in translator life cycle )
>
> // insert my bean factory, verified - works, beans created ok.
> beanCreationChain = BeanCreationList.createStandardChain();
> beanCreationChain.insertBeanCreator(1, new BeanCreator() );
>
> // load betwixt-config, save XMLIntrospector for future use
> BeanWriter writer = new BeanWriter();
> introspector = writer.getXMLIntrospector();
> InputSource is = new
> InputSource(TranslatorImpl.class.getResourceAsStream(translatorConfig));
>
> introspector.register(is);
> introspector.getConfiguration().setWrapCollectionsInElement(true);
> writer.getBindingConfiguration().setMapIDs(false);
>
> // save Configuration for future use
> configuration = writer.getBindingConfiguration();
>
>
>
> **** BETWIXT CONFIG ( loaded by above code )
>
> <?xml version="1.0" encoding="UTF-8"?>
> <betwixt-config>
> <class name='com.my.CollectionWrapper' >
> <element name='elements'>
> <element property='element' />
> </element>
> </class>
>
> <class name='com.my.Application'>
> <element name='application'>
> <attribute name='id' property='id'/>
> <attribute name='name' property='name' />
> <element name='description' property='description' />
> <addDefaults add-properties='false'/>
> </element>
> </class>
> </betwixt-config>
>
>
> **** XML IN ( to be loaded into collection )
>
> <?xml version='1.0' ?>
> <elements>
> <application id="2" name="bean2">
> <description>Application Bean 2</description>
> </application>
> <application id="3" name="bean3">
> <description>Application Bean 3</description>
> </application>
> <application id="1" name="bean1">
> <description> Application Bean 1</description>
> </application>
> </elements>
>
>
> **** READING ( actual translation step )
>
> Object result = null;
> StringReader xmlReader = new StringReader(buffer); // XML IN
>
> BeanReader reader = new BeanReader();
>
> // using configuration saved earlier
> reader.setXMLIntrospector(introspector);
> reader.setBindingConfiguration(configuration);
> reader.getReadConfiguration().setBeanCreationChain(beanCreationChain);
>
> reader.registerBeanClass("elements",
> Class.forName("com.my.CollectionWrapper"));
>
> reader.registerBeanClass("application",
> Class.forName("com.my.Application"));
>
> result = reader.parse(xmlReader);
>
> // RESULT Contains empty collection.
> // Adding to collection in CollectionWrapper never happens
>
>
> **** COLLECTION WRAPPER
>
> public class CollectionWrapper
> {
> private static Logger log = Logger.getLogger(CollectionWrapper.class);
> private Collection elements = null;
> public CollectionWrapper()
> {
> log.debug("********* CONSTRUCTOR ******************");
> elements = new java.util.ArrayList();
> }
>
> public void addElement(Object element)
> {
> log.debug("********** ADD *************** " + element.toString());
> elements.add(element);
> }
>
> public Collection getElementCollection() { return elements; }
>
> public Iterator getElements() { return elements.iterator(); }
>
> public void setElements(Collection elements) { this.elements = elements; }
>
>
>
> // this did not work either
>
> // public Collection getApplications(Application element) {
> addElement(element); }
>
> // public void addApplication(Application element) { addElement(element); }
>
>
> // public void setApplication(Application element) { addElement(element); }
>
>
>
>
> }
>
>
>
>
>
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