WebSphere Application Server - IBM Redbooks

* params (optional) : Values to be used for where clause in the query.
* query (optional) : Will override the query sting in the xstFile.
*/
//Sets the location of the xst file - the directory path will need to be
changed for you system
String xstFile = "/Documents and Settings/bogers/My
Documents/IBM/wasexpress51/workspace/OnlineCatalog/WebContent/featured_item/Fea
turedItem.xst";
if (xstFile == null)
error(response, new Exception("xstFile parameter is not specfied."));
String params = getParameter(req,"params");
String query = getParameter(req,"query"); // if recursive query mode
/*
* Generate XML and XSL streams from the query
*/
try
{
QueryProperties prop = new QueryProperties();
prop.load(xstFile);
if (query != null) // Recursive & ID_AND_IDREF query mode
prop.setStatement(query); // Override the previous query
SQLToXML sql2xml = new SQLToXML(prop);
ByteArrayOutputStream baosXML = new ByteArrayOutputStream();
PrintWriter xmlWriter = new PrintWriter(baosXML);
//ByteArrayOutputStream baosXSL = new ByteArrayOutputStream(); //Not used
in our sample
//PrintWriter xslWriter = new PrintWriter(baosXSL); //Nnot used in our
sample
Connection conn =
getConnection(prop.getLoginId(),prop.getPassword(),response);
if (conn != null)
sql2xml.setConnection(conn); // You are using your own connection
sql2xml.setParameters(params); // null is ok when the query does not
contain where clause
sql2xml.setXMLWriter(xmlWriter); // Generate XML
//sql2xml.setXSLWriter(xslWriter); // Generate default XSL - Not used in
our sample
sql2xml.execute();
Chapter 10. Working with XML 345