I remember seeing this somewhere. Did we talk about this in the forum?
Shailender Bathula wrote:
> Hi all
>
> JAXB marshals a DOM Element with attributes in xs:any differently to a DOM
> Element without attributes. That is, while marshalling a DOM Element with
> attributes JAXB starts using namespace prefixes on elements. Following is
> the sample output, schemas and code. The project is also attached in JAXB
> RI sample format.
>
> Is it possible to use JAXB Marshaller to generate Output (1) (i.e. elements
> of xs:any without namespace prefixes etc.) when using a DOM Element with
> attributes in xs:any (i.e. data2.xsd)?
>
> I have run this test using JAXB RI 2.1.2 (JAXB2_20070125.jar)
>
> Thanks
> Shailender
>
> Output (1): message marshalled with a DOM Element without attributes (i.e.
> data1.xsd)
>
> <message xsi:schemaLocation="http://www.example.com/2007/message
> message.xsd"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xmlns="http://www.example.com/2007/message">
> <header>
> <version>1</version>
> </header>
> <payload>
> <data xsi:schemaLocation="http://www.example.com/2007/message
> data1.xsd">
> <version>1</version>
> <line>hello</line>
> </data>
> </payload>
> </message>
>
> -----------------------------------------------------
>
> Output (2): message marshalled with a DOM Element with attributes (i.e.
> data2.xsd)
>
> <message xsi:schemaLocation="http://www.example.com/2007/message
> message.xsd"
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xmlns="http://www.example.com/2007/message">
> <header>
> <version>1</version>
> </header>
> <payload>
> <data version="1"
> xsi:schemaLocation="http://www.example.com/2007/message data2.xsd"
> xmlns:ns3="http://www.example.com/2007/message"
> xmlns="">
> <ns3:line
> xmlns="http://www.example.com/2007/message">hello</ns3:line>
> </data>
> </payload>
> </message>
>
> -----------------------------------------------------
>
> message.xsd -- wrapper to encapsulate xs:any
>
> <?xml version="1.0" encoding="UTF-8"?>
> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
> xmlns="http://www.example.com/2007/message"
> targetNamespace="http://www.example.com/2007/message"
> elementFormDefault="qualified">
> <xs:element name="message" type="message_type"/>
> <xs:complexType name="message_type">
> <xs:sequence>
> <xs:element name="header" type="message_header_type"/>
> <xs:element name="payload" type="message_payload_type"/>
> </xs:sequence>
> </xs:complexType>
> <xs:complexType name="message_header_type">
> <xs:sequence>
> <xs:element name="version" type="xs:int" />
> </xs:sequence>
> </xs:complexType>
> <xs:complexType name="message_payload_type">
> <xs:sequence>
> <xs:any processContents="lax" minOccurs="0"/>
> </xs:sequence>
> </xs:complexType>
> </xs:schema>
>
> -----------------------------------------------------
>
> data1.xsd -- content of xs:any
>
> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
> xmlns="http://www.example.com/2007/message"
> targetNamespace="http://www.example.com/2007/message"
> elementFormDefault="qualified">
> <xs:element name="data" type="data_type" />
> <xs:complexType name="data_type">
> <xs:sequence>
> <xs:element name="version" type="xs:int"/>
> <xs:element name="line" type="xs:string"/>
> </xs:sequence>
> </xs:complexType>
> </xs:schema>
>
> -----------------------------------------------------
>
> data2.xsd -- content of xs:any
>
> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
> xmlns="http://www.example.com/2007/message"
> targetNamespace="http://www.example.com/2007/message"
> elementFormDefault="qualified">
> <xs:element name="data" type="data_type" />
> <xs:complexType name="data_type">
> <xs:sequence>
> <xs:element name="line" type="xs:string"/>
> </xs:sequence>
> <xs:attribute name="version" type="xs:int" use="required"/>
> </xs:complexType>
> </xs:schema>
>
> -----------------------------------------------------
>
> // Main.java
> // message.xsd has been compiled into "message" package
> // data1.xsd has been compiled into "data1" package
> // data2.xsd has been compiled into "data2" package
>
> import data1.*;
> import data2.*;
> import message.*;
> import java.io.*;
> import javax.xml.*;
> import javax.xml.bind.*;
> import javax.xml.parsers.*;
> import javax.xml.validation.*;
> import org.w3c.dom.*;
>
> public class Main {
> public static void main(String args[]) throws Exception {
> printMessage(buildDataElement1());
> printMessage(buildDataElement2());
> }
>
> private static void printMessage(org.w3c.dom.Element any) throws
> Exception {
> JAXBContext messageCtx = JAXBContext.newInstance("message");
> message.ObjectFactory messageOF = new message.ObjectFactory();
>
> message.MessageHeaderType headerType = new
> message.MessageHeaderType();
> headerType.setVersion(1);
>
> message.MessagePayloadType payloadType =
> new message.MessagePayloadType();
> payloadType.setAny(any);
>
> message.MessageType messageType = new message.MessageType();
> messageType.setHeader(headerType);
> messageType.setPayload(payloadType);
> JAXBElement<message.MessageType> messageElement =
> messageOF.createMessage(messageType);
>
> StringWriter sw = new StringWriter();
> SchemaFactory sf = SchemaFactory.newInstance(
> XMLConstants.W3C_XML_SCHEMA_NS_URI);
> Schema messageSchema = sf.newSchema(new File("message.xsd"));
> Marshaller messageMarshaller = messageCtx.createMarshaller();
> messageMarshaller.setProperty(Marshaller.JAXB_SCHEMA_LOCATION,
> "http://www.example.com/2007/message message.xsd");
> messageMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT,
> Boolean.TRUE);
> messageMarshaller.setSchema(messageSchema);
> messageMarshaller.marshal(messageElement, sw);
> System.out.println(sw.toString());
> }
>
> private static org.w3c.dom.Element buildDataElement1() throws Exception
> {
> JAXBContext dataCtx1 = JAXBContext.newInstance("data1");
> data1.ObjectFactory dataOF = new data1.ObjectFactory();
>
> data1.DataType dataType = new data1.DataType();
> dataType.setVersion(1);
> dataType.setLine("hello");
> JAXBElement<data1.DataType> dataElement1 =
> dataOF.createData(dataType);
>
> SchemaFactory sf = SchemaFactory.newInstance(
> XMLConstants.W3C_XML_SCHEMA_NS_URI);
> Schema dataSchema = sf.newSchema(new File("data1.xsd"));
> Marshaller dataMarshaller = dataCtx1.createMarshaller();
> DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
> dbf.setNamespaceAware(true);
> DocumentBuilder db = dbf.newDocumentBuilder();
> Document doc = db.newDocument();
> dataMarshaller.setProperty(Marshaller.JAXB_SCHEMA_LOCATION,
> "http://www.example.com/2007/message data1.xsd");
> dataMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT,
> Boolean.TRUE);
> dataMarshaller.setSchema(dataSchema);
> dataMarshaller.marshal(dataElement1, doc);
> return doc.getDocumentElement();
> }
>
> private static org.w3c.dom.Element buildDataElement2() throws Exception
> {
> JAXBContext dataCtx1 = JAXBContext.newInstance("data2");
> data2.ObjectFactory dataOF = new data2.ObjectFactory();
>
> data2.DataType dataType = new data2.DataType();
> dataType.setVersion(1);
> dataType.setLine("hello");
> JAXBElement<data2.DataType> dataElement1 =
> dataOF.createData(dataType);
>
> SchemaFactory sf = SchemaFactory.newInstance(
> XMLConstants.W3C_XML_SCHEMA_NS_URI);
> Schema dataSchema = sf.newSchema(new File("data2.xsd"));
> Marshaller dataMarshaller = dataCtx1.createMarshaller();
> DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
> dbf.setNamespaceAware(true);
> DocumentBuilder db = dbf.newDocumentBuilder();
> Document doc = db.newDocument();
> dataMarshaller.setProperty(Marshaller.JAXB_SCHEMA_LOCATION,
> "http://www.example.com/2007/message data2.xsd");
> dataMarshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT,
> Boolean.TRUE);
> dataMarshaller.setSchema(dataSchema);
> dataMarshaller.marshal(dataElement1, doc);
> return doc.getDocumentElement();
> }
> }
>
> -----------------------------------------------------
>
> (See attached file: any-dom-marshal.jar)
>
>
> ------------------------------------------------------------------------
>
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--
Kohsuke Kawaguchi
Sun Microsystems kohsuke.kawaguchi_at_sun.com