I got this XML structure:
<Tax>
<Money currency="USD">0.00</Money>
<Description xml:lang="en">
17.5% Non-Recoverable
<ShortName>vatspecial</ShortName>
</Description>
</Tax>
Notice that Description
node has MixedContent
(composed with text and XML) and this is the XSD
part regarding Description
node:
<xsd:complexType name="TaxDescriptionType">
<xsd:sequence>
<xsd:element name="ShortName" type="xsd:string" />
</xsd:sequence>
<xsd:attribute ref="xml:lang" />
</xsd:complexType>
Everything is ok at this point, XJC
outputs the generated classes like this one regarding TaxDescriptionType
:
package org.com.project;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlSchemaType;
import javax.xml.bind.annotation.XmlType;
import javax.xml.bind.annotation.adapters.CollapsedStringAdapter;
import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
/**
* <p>Java class for TaxDescriptionType complex type.
*
* <p>The following schema fragment specifies the expected content contained within this class.
*
* <pre>
* <complexType name="TaxDescriptionType">
* <complexContent>
* <restriction base="{http://www.w3.org/2001/XMLSchema}anyType">
* <sequence>
* <element name="ShortName" type="{http://www.w3.org/2001/XMLSchema}string"/>
* </sequence>
* <attribute ref="{http://www.w3.org/XML/1998/namespace}lang"/>
* </restriction>
* </complexContent>
* </complexType>
* </pre>
*
*
*/
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "TaxDescriptionType", propOrder = {
"shortName"
})
public class TaxDescriptionType {
@XmlElement(name = "ShortName", required = true)
protected String shortName;
@XmlAttribute(name = "lang", namespace = "http://www.w3.org/XML/1998/namespace")
@XmlJavaTypeAdapter(CollapsedStringAdapter.class)
@XmlSchemaType(name = "NCName")
protected String lang;
/**
* Gets the value of the shortName property.
*
* @return
* possible object is
* {@link String }
*
*/
public String getShortName() {
return shortName;
}
/**
* Sets the value of the shortName property.
*
* @param value
* allowed object is
* {@link String }
*
*/
public void setShortName(String value) {
this.shortName = value;
}
/**
* Gets the value of the lang property.
*
* @return
* possible object is
* {@link String }
*
*/
public String getLang() {
return lang;
}
/**
* Sets the value of the lang property.
*
* @param value
* allowed object is
* {@link String }
*
*/
public void setLang(String value) {
this.lang = value;
}
}
Then, with the above class
I am able to work around with the elements like this:
taxDescriptionType.setLang("en");
taxDescriptionType.setShortName("vatspecial");
/* missing value: 17.5% Non-Recoverable */
But the problem is that I can't found a way to get
or set
the 17.5% Non-Recoverable
text of the MixedContent-ComplexType
from the above XML
example.
This is what I tried and it's not working:
mixed="true"
attribute like this: <xsd:complexType name="TaxDescriptionType" mixed="true">
(I think XJC is ignoring the last attribute)
Doing some research, I found this:
JAXB XJC compiler disregarding mixed=true on XML Schema documents
But I am not sure if this is the way to solve this. One of the answers said that this is a bug and in the other one shows a code that transforms the MixedContent
into a List<Serializable>
and maybe the next situation will be about how to deal with this:
taxDescriptionType.getContent().add(Serializable element);
(And I really don't know how to deal with a Serializable
element)
A mixed complex type element can contain attributes, elements, and text.
JAXB — Java Architecture for XML Binding — is used to convert objects from/to XML. JAXB offers a fast and suitable way to marshal (write) Java objects into XML and unmarshal (read) XML into Java objects. It supports Java annotations to map XML elements to Java attributes.
XML > XML Mixed Content. An element type has mixed content when elements of that type may contain character data, optionally interspersed with child elements.]
As you mentioned you need to add the mixed
attribute to indicate that your type supports mixed content. Without this specified your XML content is invalid:
<xsd:complexType name="TaxDescriptionType" mixed="true">
<xsd:sequence>
<xsd:element name="ShortName" type="xsd:string" />
</xsd:sequence>
<xsd:attribute ref="xml:lang" />
</xsd:complexType>
The generated TaxDescriptionType
class will have the following property. Essentially this means that all of the non-attribute content will be stored in a List
. This is necessary because you need a mechanism that indicates where the text nodes are wrt the element content.
@XmlElementRef(name = "ShortName", namespace = "http://www.example.org/schema", type = JAXBElement.class)
@XmlMixed
protected List<Serializable> content;
You will populate this list with instances of String
(representing text nodes) and JAXBElement
(representing element content).
ALTERNATIVELY
Mixed content generally makes life more complicated than it needs to be. If possible I would recommend an alternate XML representation.
<Tax>
<Money currency="USD">0.00</Money>
<Description xml:lang="en" ShortName="vatspecial">
17.5% Non-Recoverable
</Description>
</Tax>
Or
<Tax>
<Money currency="USD">0.00</Money>
<Description xml:lang="en">
<LongName>17.5% Non-Recoverable</LongName>
<ShortName>vatspecial</ShortName>
</Description>
</Tax>
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