How could I re-mark the list of Jaxb elements without creating a wrapper class?

Question

Writing and adding each item to the line ends. Is there a way to get the JAXB marshaller to sort the list of objects where I can just give it the name of the top element?

It seems to me that I'm close with this

//http://blog.bdoughan.com/2012/07/jaxb-no-annotations-required.html
public <T> String jaxb(Collection<T> o, Class<T> clazz, String plural){
    try {
        ArrayList<T> al = new ArrayList<T>(o.size());
        al.addAll(o);
        JAXBContext jc = JAXBContext.newInstance(ArrayList.class);
        JAXBElement<ArrayList> amenity = new JAXBElement(new QName(plural), ArrayList.class, al);
        Marshaller marshaller = jc.createMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
        StringWriter writer = new StringWriter();
        marshaller.marshal(amenity, writer);
        return writer.toString();
    } catch (JAXBException e) {
        throw new RuntimeException(e);
    }
}

but the result still returns as an empty list

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<pluralName/>

Is there a way to do this without just manually inserting the xml strings?

Update

With some help from Michael Glavasevich I was able to do this with one caveat, the individual elements <Item>s

//http://blog.bdoughan.com/2012/07/jaxb-no-annotations-required.html
@SuppressWarnings({ "unchecked", "rawtypes" })
public <T> String jaxb(Collection<T> elements, Class<T> elementClass, String plural){
    try {
        T[] array = (T[]) Array.newInstance(elementClass, elements.size());
        elements.toArray(array);
        JAXBContext jc = JAXBContext.newInstance(array.getClass());
        JAXBElement<T[]> topElement = new JAXBElement(new QName(plural), array.getClass(), array);
        Marshaller marshaller = jc.createMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
        StringWriter writer = new StringWriter();
        marshaller.marshal(topElement, writer);
        return writer.toString();
    } catch (JAXBException e) {
        throw new RuntimeException(e);
    }
}

Then the result becomes

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Basketballs>
    <item>basketball one</item>
    <item>basketball two</item>
</Basketballs>

Answer 1

-, , JAXBElement, .

:

public class JAXBArrayWriter {

    public static class Item {
        @XmlValue
        protected String value;

        public Item() {}

        public Item(String value) {
            this.value = value;
        }
    }

    public static void main (String [] args) throws Exception {
        List<Item> items = new ArrayList<Item>();
        items.add(new Item("one"));
        items.add(new Item("two"));
        JAXBContext jc = JAXBContext.newInstance(Item[].class);
        JAXBElement<Item[]> root = new JAXBElement<Item[]>(new QName("items"), 
                Item[].class, items.toArray(new Item[items.size()]));
        Marshaller marshaller = jc.createMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
        StringWriter writer = new StringWriter();
        marshaller.marshal(root, writer);
        System.out.println(writer.toString());
    }
}

:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<items>
    <item>one</item>
    <item>two</item>
</items>

Answer 2

, :

:

@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
public class AmenityList {
    @XmlElement(name = "amenity")
    List<Amenity> amenities = new ArrayList<Amenity>();

    public AmenityList() {}

    public void setList(List<Amenity> amenities) {
        this.amenities = amenities;
    }
}

Amenity:

@XmlAccessorType(XmlAccessType.FIELD)
class Amenity {
    private String amenityName;
    private String amenityDate;

    public Amenity(String name, String date) {
        this.amenityName = name;
        this.amenityDate = date;
    }
}

, , - , :) - AmenityList:

AmenityList amenityList = new AmenityList();
List <Amenity> amenities = new ArrayList<Amenity>();
amenities.add(new Amenity("a_one", "today"));
amenities.add(new Amenity("a_two", "tomorrow"));
amenity.setList(amenities);

, , toXml:

public static String toXml(AmenityList amenityList) throws JAXBException {
    JAXBContext jaxbContext = JAXBContext.newInstance(AmenityList.class);
    Marshaller jaxbMarshaller = jaxbContext.createMarshaller();
    jaxbMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
    StringWriter sw = new StringWriter();
    jaxbMarshaller.marshal(amenityList, sw);
    return sw.toString()
}

:

<amenityList>
    <amenity>
        <amenityName>a_one</amenityName>
        <amenityDate>today</amenityDate>
    </amenity>
    <amenity>
        <amenityName>a_two</amenityName>
        <amenityDate>tomorrow</amenityDate>
    </amenity>
</amenityList>