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How can I modify the Marshalling JAXB output stream to include arbitrary embedded XML?

I would like to change the output stream for the JAXB marshalling operation to include some arbitrary XML. Here is an example to clarify the situation.

I have an arbitrary domain object Productwith JAXB annotations that currently look like this:

@XmlRootElement(name="Product")
public class Product {

  @XmlElement(name="CommonProperty")
  private String commonProperty="Something";  

  @XmlElement(name="ExtraXml")
  private String extraXml="Something extra";

}

Typically, this will mean the following:

<Product>
  <CommonProperty>Something</CommonProperty>
  <ExtraXml>Something else</ExtraXml>
</Product>

Now, what if the field extraXmlcontained some additional XML (of arbitrary complexity) that should have been included in the string with the final final result?

Say it extraXmlcontained " <abc><def>Something extra</def></abc>", I would really like this solution to allow me to marshal Productlike this (formatting is optional):

<Product>
  <CommonProperty>Something</CommonProperty>
  <abc>
    <def>Something extra</def>
  </abc>
</Product>

, , , , DOM.

extraXml , @XmlTransient . , - String, XML- Product.

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+5
2

XML DOM node .

extraXML org.w3c.dom.Node String @XmlAnyElement.

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

import org.w3c.dom.Node;

@XmlRootElement(name="Product")
@XmlAccessorType(XmlAccessType.FIELD)
public class Product {

  @XmlElement(name="CommonProperty")
  private String commonProperty="Something";  

  @XmlAnyElement
  private Node extraXml;

}

, umarshal XML-, :

<Product>
  <CommonProperty>Something</CommonProperty>
  <abc>
    <def>Something extra</def>
  </abc>
</Product>

:

import java.io.File;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;

public class Demo {

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

        Unmarshaller unmarshaller = jc.createUnmarshaller();
        File xml = new File("input.xml");
        Product product = (Product) unmarshaller.unmarshal(xml);

        Marshaller marshaller = jc.createMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
        marshaller.marshal(product, System.out);
    }
}

" XML" DOM node.

+6

Blaise Doughan - , . , , .

ProductList ( , , )

import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlElementWrapper;
import javax.xml.bind.annotation.XmlRootElement;
import java.util.ArrayList;
import java.util.List;

@XmlRootElement(name="ProductList")
public class ProductList {

  @XmlElementWrapper(name="Products")
  @XmlElement(name="Product")
  public List<Product> products = new ArrayList<Product>();

}

( Blaise)

import org.w3c.dom.Node;

import javax.xml.bind.annotation.*;

@XmlRootElement(name="Product")
@XmlAccessorType(XmlAccessType.FIELD)
public class Product {

  @XmlElement(name="CommonProperty")
  public String commonProperty="Something";

  @XmlAnyElement
  public Node extraXml;

}

( )

import org.w3c.dom.Document;
import org.xml.sax.InputSource;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;
import javax.xml.parsers.DocumentBuilderFactory;
import java.io.StringReader;

public class Main {

  public static void main(String[] args) throws Exception {

    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();

    // Build some arbitrary extra XML and prepare an InputStream
    String fragment1 = "<abc><def>Some extra 1</def></abc>";
    String fragment2 = "<ghi><jkl>Some extra 2</jkl></ghi>";
    Document document1 = factory.newDocumentBuilder().parse(new InputSource(new StringReader(fragment1)));
    Document document2 = factory.newDocumentBuilder().parse(new InputSource(new StringReader(fragment2)));

    Product product1 = new Product();
    product1.commonProperty = "Hello 1";
    product1.extraXml=document1.getFirstChild();

    Product product2 = new Product();
    product2.commonProperty = "Hello 2";
    product2.extraXml=document2.getFirstChild();

    ProductList productList = new ProductList();
    productList.products.add(product1);
    productList.products.add(product2);

    JAXBContext jc = JAXBContext.newInstance(ProductList.class, Product.class);
    Marshaller marshaller = jc.createMarshaller();
    marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
    marshaller.marshal(productList, System.out);

  }
}

:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ProductList>
    <Products>
        <Product>
            <CommonProperty>Hello 1</CommonProperty>
            <abc>
                <def>Some extra 1</def>
            </abc>
        </Product>
        <Product>
            <CommonProperty>Hello 2</CommonProperty>
            <ghi>
                <jkl>Some extra 2</jkl>
            </ghi>
        </Product>
    </Products>
</ProductList>

!

JBoss...

JBoss 4.2.3.GA 4.3, ,

class com.sun.org.apache.xerces.internal.dom.DocumentFragmentImpl nor any of its super class is known to this context.

. () - xercesImpl.jar JBoss lib /lib/endorsed Java META-INF/Services, JDK . DocumentBuilderFactory , :

DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance("oracle.xml.jaxp.JXDocumentBuilderFactory", this
      .getClass().getClassLoader());

Oracle, , , , , DOM Node JAXB. xdb.jar xmlparserv2.jar, Oracle.

, .

+5

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