Generate an XML document with JAXB via XML mode

package jaxbderived.catalog; public class ObjectFactory {public jaxbderived.catalog.Journal createJournal () {jaxbderived.catalog.Journal elem = new jaxbderived.catalog.JournalImpl (ownerDocument); return elem;} public jaxbderived.catalog.Article createArticle () { jaxbderived.catalog.Article elem = new jaxbderived.catalog.ArticleImpl (ownerDocument); return elem;} public jaxbderived.catalog.Catalog createCatalog () {jaxbderived.catalog.Catalog elem = new jaxbderived.catalog.CatalogImpl (ownerDocument); return elem ;} public jaxbderived.catalog.OracleCatalog createOracleCatalog () {jaxbderived.catalog.OracleCatalog elem = new jaxbderived.catalog.OracleCatalogImpl (ownerDocument); return elem;} public Object newInstance (Class javaContentInterface) throws javax.xml.bind.JAXBException {Object Newinstance = null; string elemname = javacontentinterface.getName (); try {ife ("jaxbderived.catalog.raclectalog") {newinstance = new jaxbderived.catalog.Oraclecience gImpl (ownerDocument); return newInstance;}} catch (Exception e) {throw new javax.xml.bind.JAXBException (e.toString ());} return null;} public Object getProperty (String name) {return null;} public void setProperty (String name, Object value) {} public Object unmarshal (org.w3c.dom.Node node) throws javax.xml.bind.UnmarshalException {String elemName = node.getLocalName (); try {if (elemName.equals ( "OracleCatalog")) {jaxbderived.catalog.OracleCatalog unode = new jaxbderived.catalog.OracleCatalogImpl ((oracle.xml.parser.v2.XMLElement) node); return unode;}} catch (Exception e) {throw new javax. Xml.bind.unmarshalexception (e.tostring ());

} return null;} private oracle.xml.parser.v2.xmldocument OwnerDocument = new oracle.xml.parser.v2.xmldocument ();} OracleCatalog.java is generated using the JAXB class generator, corresponding to the top element in XML mode One of the Java classes, which is a Java interface generated in the top level element OracleCatalog in OracleCatalog.xsd mode.

Package jaxbderived.catalog; public interface oraclecatalog extens jaxbderived.catalog.catalog, javax.xml.bind.Element {}

OracleCatalog MiMPL.java is a Java class generated corresponding to OracleCatalog.xsd mode Top elements OracleCatalog:

package jaxbderived.catalog; public class OracleCatalogImpl extends jaxbderived.catalog.CatalogImpl implements jaxbderived.catalog.OracleCatalog {public OracleCatalogImpl (oracle.xml.parser.v2.XMLDocument ownerDoc) {super ( "OracleCatalog", "http: // jaxbderived / catalog ", ownerDoc);} public OracleCatalogImpl (String name, String namespace, oracle.xml.parser.v2.XMLDocument ownerDoc) {super (name, namespace, ownerDoc);} public OracleCatalogImpl (oracle.xml.parser.v2.XMLElement node ) {super (node);}}

Catalog.java is one of the Java classes generated by top-level ComplexType declarations in XML mode, which corresponds to the Java interface generated by OracleCatalog.xsd Mode Top ComplexType Catalog.

package jaxbderived.catalog; public interface Catalog {public void setTitle (java.lang.String t); public java.lang.String getTitle (); public void setPublisher (java.lang.String p); public java.lang.String getPublisher (); public java.util.list getjournal ();

CatalogImpl.java is a Java class generated corresponding to top-level complextype catalog:

package jaxbderived.catalog; public class CatalogImpl extends oracle.xml.jaxb.JaxbNode implements jaxbderived.catalog.Catalog {public CatalogImpl (oracle.xml.parser.v2.XMLDocument ownerDoc) {super ( "catalog", "http: // jaxbderived / catalog ", ownerDoc);} public CatalogImpl (String name, String namespace, oracle.xml.parser.v2.XMLDocument ownerDoc) {super (name, namespace, ownerDoc);} public CatalogImpl (oracle.xml.parser.v2. Xmlelement Node) {super (node);} public void settitle (java.lang.string t) {super.setjaxbattrstringValue ("Title", ", T);} public java.lang.string gettitle () {RETURN SUPER. getJaxbAttrStringValue ( "title", "");} public void setPublisher (java.lang.String p) {super.setJaxbAttrStringValue ( "publisher", "", p);} public java.lang.String getPublisher () {return super .GetjaxbattrstringValue ("Publisher", "");} public java.util.list getjournal () {Return (java.util.list) Super.getlist ("Journal", "http:// jaxbderived / catalog", this, 0);} Public Object CreateJaxbno DE (Oracle.xml.Parser.v2.xmlnode node) {string name = node.getlocalname (); string namespace = node.getnamespaceuri (); if (Namespace == null) Namespace = ""; if (Name.Equals) "journal") && namespace.equals ( "http: // jaxbderived / catalog")) {jaxbderived.catalog.JournalImpl obj = new jaxbderived.catalog.JournalImpl (getOwnerDocument ()); obj.populateNodeArray (node); return obj; } return null;} public void populatenodeaRray (Oracle.xml.Parser.v2.xmlnode node) {string name, name, name, oracle.xml.Parser.v2.xmlNode n = (Oracle.xml.Parser.v2.xmlnode) Node. Getfirstchild (); while (n! =

NULL) {name = n.GetLocalName (); Namespace = n.GetNamespaceuri (); if (Namespace == Null) Namespace = ""; if (Name.Equals ("Journal") && namespace.Equals ("http: / / jaxbderived / catalog ") {super.setnodevectorvalue (0, n);} n = (ORACLE.XML.PARSER.V2.XMLNODE) ​​N.GetnextSibling ();} super.populatenodeaRray (node);} static firm Object [ ] _Journal Final Object [] _catalog = {_journal}; protected object [] getSchemaObject () {return_catalog;}} Now let's continue to introduce the process of generating an XML document from these Java classes.

Create an XML document

In this section, we will create an XML document example from these Java classes generated using the JAXB class generator, OracleCatalog.xml.

Create CatalogIMPL from these Java classes and group CatalogIMPL class objects to build an XML document. First, import Javax.xml.bind packages.

Import javax.xml.bind. *;

These Oracle Jaxb classes are now imported now.

Import oracle.xml.jaxb. *;

Create a grouper to group the Catalog object into the XML document.

JAXBContextimpl jaxbcontext = new jaxbcontextimpl (); Marshaller Marshaller = jaxbcontext.createmarshaller ();

Now, create ObjectFactory, we will create a new instance of the implementation class. ObjectFactory is an important feature of JAXB because it provides code portability.

ObjectFactory Factory = New ObjectFactory ();

Create a Catalog element:

CatalogIMPL Catalog = (CatalogImpl) (Factory.createCatalog ());

Set the Title property of the Catalog element:

Catalog.Settitle ("Oracle Magazine");

Set the Publisher property of the Catalog element.

Catalog.SetPublisher ("Oracle Publishing");

Create a Journal element.

Factory.createJournal ();

Set the Date property of the Journal element.

Journal.Setdate ("November-December 2003");

Add a Journal element to a Catalog element.

Java.util.List journallist = catalog.getjournal (); Journallist.Add (journal);

Create an Article element in a Journal element.

Article IMPL ARTICLE = (Article.CreateArticle ()); sets the section property of the Article element.

Article.setsection ("XML");

Create a title element in the article element.

Article.Settitle ("Updating Xquery");

Add Article elements to the Journal element.

Java.util.list articles = journal.geticle (); articlelist.add (articles);

Create an Author element in the article element.

Java.util.list authorlist = article.getauthor (); authorlist.add ("jason hunter");

Similarly to the Journal element created using the steps described above, add another Journal element to create an example XML document OracleCatalog.xml. Then group the CatalogIMPL object to an XML document.

Marshaller.Marshal (Catalog, New FileoutputStream (XmLDocument);

This has generated oraclecatalog.xml: