Ukázka XML:DB programu

Example 1. 

import org.xmldb.api.base.*;
import org.xmldb.api.modules.*;
import org.xmldb.api.*;
public class Query {
   public static void main(String[] args) throws Exception {
      Collection col = null;
      try {
         String driver = null;
         String prefix = null;
         if ( ( args.length == 1 ) && args[0].equals("dbxml") ) {
            driver = "org.dbxml.client.xmldb.DatabaseImpl";
            prefix = "xmldb:dbxml:///db/";
         }
         else {
            driver = "org.xmldb.api.reference.DatabaseImpl";
            prefix = "xmldb:ref:///"; 
         }
         
         Class c = Class.forName(driver);
         
         Database database = (Database) c.newInstance();
         if ( ! database.getConformanceLevel().equals("1") ) {
            System.out.println("This program requires a Core Level 1 XML:DB " +
               "API driver");
            System.exit(1);
         }
         
         DatabaseManager.registerDatabase(database);
         col =
            DatabaseManager.getCollection(prefix + "addresses");
   
         String xpath = "/address[@id = 1]";
         XPathQueryService service =
            (XPathQueryService) col.getService("XPathQueryService", "1.0");
         ResourceSet resultSet = service.query(xpath);
         ResourceIterator results = resultSet.getIterator();
         
         while (results.hasMoreResources()) {
            Resource res = results.nextResource();
            System.out.println((String) res.getContent());
         }
      }
      catch (XMLDBException e) {
         System.err.println("XML:DB Exception occurred " + e.errorCode + " " + 
            e.getMessage());
      }
      finally {
         if (col != null) {
            col.close();
         }
      }
   }
}