Question

I have a XML file, and its xml schema contains couples complexType in it. So when I unmarshal the xml file, I want to give the xml parser my xml schema. Is it possible to do it, if so, then how to do it?

EDIT: After I unmarshal, every field in my object is null. Any idea why?

Answer 1

UPDATE

The issue you are seeing is due to the content being nested within the NameAndAddress element. You could introduce a NameAndAddress class have PackageLabel hold an instance of that.

PackageLabel

import java.io.Serializable;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement(name="PackageLabel")
@XmlAccessorType(XmlAccessType.FIELD)
public class PackageLabel implements Serializable {

    @XmlElement(name="NameAndAddress")
    private NameAndAddress nameAndAddress;

}

NameAndAddress

import javax.xml.bind.annotation.XmlElement;

public class NameAndAddress {

    @XmlElement(name="Name")
    private String name;

    @XmlElement(name="Address1")
    private String address1;

    @XmlElement(name="Address2")
    private String address2;

    @XmlElement(name="City")
    private String city;

    @XmlElement(name="State")
    private String state;

    @XmlElement(name="ZipCode")
    private String zipCode;

}

EclipseLink JAXB (MOXy)’s @XmlPath Extension

Alternatively you could use the @XmlPath extension in EclipseLink JAXB (MOXy):

import java.io.Serializable;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlRootElement;

import org.eclipse.persistence.oxm.annotations.XmlPath;

@XmlRootElement(name="PackageLabel")
@XmlAccessorType(XmlAccessType.FIELD)
public class PackageLabel implements Serializable {

    @XmlPath("NameAndAddress/Name/text()")
    private String name;

    @XmlPath("NameAndAddress/Address1/text()")
    private String address1;

    @XmlPath("NameAndAddress/Address2/text()")
    private String address2;

    @XmlPath("NameAndAddress/City/text()")
    private String city;

    @XmlPath("NameAndAddress/State/text()")
    private String state;

    @XmlPath("NameAndAddress/ZipCode/text()")
    private String zipCode;

}

For More Information

• http://bdoughan.blogspot.com/2010/09/xpath-based-mapping-geocode-example.html
• http://bdoughan.blogspot.com/2010/07/xpath-based-mapping.html

---

You can set an XML schema on an instance of Unmarshaller. This will cause JAXB to validate the input while it converts the XML to objects:

• http://bdoughan.blogspot.com/2010/12/jaxb-and-marshalunmarshal-schema.html

If you want to generate an object model from an XML schema, you can also use JAXB to do that:

• http://bdoughan.blogspot.com/2010/09/processing-atom-feeds-with-jaxb.html