Question

I have used below getter method level XmlElement annotation for generating xsd from Java class.

@XmlElement(type=Integer.class, required=true)

public int [] getTestArrayInt () { …. }

Generated XML element:

<xsd:element name="testArrayInt" type="xsd:int"/>

minOccurs’s default value is said to be 1. Hence, it is not being displayed here.
But maxOccurs=”unbounded” which should be listed for Array elements is missing. Soap UI expects maxOccurs=”unbounded” to be present for the array elements. As a result, in Soap UI, this element is not being treated as an array.

When I removed type=Integer.class from the annotation, I started getting maxOccurs=”unbounded” in the XML.

@XmlElement(required=true) generated below element:

<xsd:element name="testArrayInt" type="xsd:int" maxOccurs="unbounded"/>

But I need this type specially for primitive datatypes. Without type in annotation, minOccurs=1 gets missing for elements which are not required (i.e. required =true is not set).

Can someone help me in this?

Answer 1

Note: I’m the EclipseLink JAXB (MOXy) lead and a member of the JAXB (JSR-222) expert group.

The issue you describe appears to occur in EclipseLink JAXB (MOXy) but not the JAXB reference implementation. MOXy is the default JAXB provider in WebLogic 12.1.1 (see: http://blog.bdoughan.com/2011/12/eclipselink-moxy-is-jaxb-provider-in.html). You can track our progress on this issue using the following bug. If you are a WebLogic customer please enter a bug so that you may receive the appropriate patch.

• http://bugs.eclipse.org/395480

Java Model

package forum13646211;

import javax.xml.bind.annotation.XmlElement;

public class Root {

    private int[] testArrayInt;

    @XmlElement(type=Integer.class)
    public int [] getTestArrayInt () {
        return testArrayInt;
    }

    public void setTestArrayInt(int[] array) {
        this.testArrayInt = array;
    }

}

Schema (Generated by JAXB RI)

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<xs:schema version="1.0" xmlns:xs="http://www.w3.org/2001/XMLSchema">

  <xs:complexType name="root">
    <xs:sequence>
      <xs:element name="testArrayInt" type="xs:int" minOccurs="0" maxOccurs="unbounded"/>
    </xs:sequence>
  </xs:complexType>
</xs:schema>

Schema (Generated by EclipseLink JAXB (MOXy))

<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
   <xsd:complexType name="root">
      <xsd:sequence>
         <xsd:element name="testArrayInt" type="xsd:int" minOccurs="0"/>
      </xsd:sequence>
   </xsd:complexType>
</xsd:schema>

Schema Generation Code

package forum13646211;

import java.io.IOException;
import javax.xml.bind.*;
import javax.xml.transform.Result;
import javax.xml.transform.stream.StreamResult;

public class Demo {

    public static void main(String[] args) throws Exception {
        JAXBContext jc = JAXBContext.newInstance(Root.class);

        jc.generateSchema(new SchemaOutputResolver() {

            @Override
            public Result createOutput(String namespaceUri,
                    String suggestedFileName) throws IOException {
                StreamResult result = new StreamResult(System.out);
                result.setSystemId(suggestedFileName);
                return result;
            }

        });

    }

}