Question

I have this class

@XStreamAlias("myConfig")
public class MyConfig {
    ... // other properties

    // What do I put here? 
    private List<String> includes;
}

And I want this output:

<myConfig>
    ...
    <includes>
        <includes>foo</include>
        <includes>bar</include>
    </includes>
</myConfig>

This doesn’t work, because the element is lost:

    @XStreamImplicit(itemFieldName = "include") // Loses <includes> element
    private List<String> includes;

Answer 1

Since your questions is tagged with jaxb and based on your comment.

@BlaiseDoughan Yes, jaxb too: I might consider switching from xstream
to jaxb in the long run, because JAXB can generate an XSD.

Here is what it would look like when using a JAXB (JSR-222) implementation:

import java.util.List;
import javax.xml.bind.annotation.*;

@XmlRootElement
public class MyConfig {

    private List<String> includes;

    @XmlElementWrapper
    @XmlElement(name = "include")
    public List<String> getIncludes() {
        return includes;
    }

    public void setIncludes(List<String> includes) {
        this.includes = includes;
    }

}

For More Information

• http://blog.bdoughan.com/2010/09/jaxb-collection-properties.html
• http://blog.bdoughan.com/2010/10/how-does-jaxb-compare-to-xstream.html