Example usage for java.sql SQLXML setResult

Introduction

In this page you can find the example usage for java.sql SQLXML setResult.

Prototype

<T extends Result> T setResult(Class<T> resultClass) throws SQLException;

Source Link

Document

Returns a Result for setting the XML value designated by this SQLXML instance.

Usage

From source file:com.oracle.tutorial.jdbc.RSSFeedsTable.java

public void addRSSFeed(String fileName) throws ParserConfigurationException, SAXException, IOException,
        XPathExpressionException, TransformerConfigurationException, TransformerException, SQLException {
    // Parse the document and retrieve the name of the RSS feed

    String titleString = null;//from   w w w  .  jav  a2 s. c o  m

    javax.xml.parsers.DocumentBuilderFactory factory = javax.xml.parsers.DocumentBuilderFactory.newInstance();
    factory.setNamespaceAware(true);
    DocumentBuilder builder = factory.newDocumentBuilder();
    Document doc = builder.parse(fileName);

    XPathFactory xPathfactory = XPathFactory.newInstance();

    XPath xPath = xPathfactory.newXPath();

    Node titleElement = (Node) xPath.evaluate("/rss/channel/title[1]", doc, XPathConstants.NODE);

    if (titleElement == null) {
        System.out.println("Unable to retrieve title element");
        return;
    } else {
        titleString = titleElement.getTextContent().trim().toLowerCase().replaceAll("\\s+", "_");
        System.out.println("title element: [" + titleString + "]");
    }

    System.out.println(JDBCTutorialUtilities.convertDocumentToString(doc));

    PreparedStatement insertRow = null;
    SQLXML rssData = null;

    System.out.println("Current DBMS: " + this.dbms);

    try {
        if (this.dbms.equals("mysql")) {
            // For databases that support the SQLXML data type, this creates a
            // SQLXML object from org.w3c.dom.Document.

            System.out.println("Adding XML file " + fileName);
            String insertRowQuery = "insert into RSS_FEEDS (RSS_NAME, RSS_FEED_XML) values" + " (?, ?)";
            insertRow = con.prepareStatement(insertRowQuery);
            insertRow.setString(1, titleString);

            System.out.println("Creating SQLXML object with MySQL");
            rssData = con.createSQLXML();
            System.out.println("Creating DOMResult object");
            DOMResult dom = (DOMResult) rssData.setResult(DOMResult.class);
            dom.setNode(doc);

            insertRow.setSQLXML(2, rssData);
            System.out.println("Running executeUpdate()");
            insertRow.executeUpdate();

        }

        else if (this.dbms.equals("derby")) {

            System.out.println("Adding XML file " + fileName);
            String insertRowQuery = "insert into RSS_FEEDS (RSS_NAME, RSS_FEED_XML) values"
                    + " (?, xmlparse(document cast (? as clob) preserve whitespace))";
            insertRow = con.prepareStatement(insertRowQuery);
            insertRow.setString(1, titleString);
            String convertedDoc = JDBCTutorialUtilities.convertDocumentToString(doc);
            insertRow.setClob(2, new StringReader(convertedDoc));

            System.out.println("Running executeUpdate()");
            insertRow.executeUpdate();

        }

    } catch (SQLException e) {
        JDBCTutorialUtilities.printSQLException(e);
    } catch (Exception ex) {
        System.out.println("Another exception caught:");
        ex.printStackTrace();
    }

    finally {
        if (insertRow != null) {
            insertRow.close();
        }
    }
}

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