I am struck here!! pls help

Question

I am trying to retrieve the latest xml that is checked in, through java. So I am storing the resource id that is returned by the check in function and using that resource id to get the latest version of the xml using the getresourcebyid function in the xml db.
following is the java code for that:
oracle.sql.RAW b ;
public void checkin() throws SQLException {
String path = "/public/testcase.xml";
cstmt = (OracleCallableStatement) conn.prepareCall (
"BEGIN :1 := dbms_xdb_version.Checkin(:2); commit; end;"
cstmt.setString(2, path);
// register the type of the out param - an Oracle specific type
cstmt.registerOutParameter(1, OracleTypes.RAW);
// execute and retrieve the result set
cstmt.execute();
b = cstmt.getRAW(1);
System.out.println (b);
public void getResourceById() throws SQLException {
cstmt = (OracleCallableStatement) conn.prepareCall (
"BEGIN :1 := dbms_xdb_version.GetResourceByResId (:2); END;"
cstmt.setRAW(2, b);
cstmt.registerOutParameter (1, OracleTypes.OPAQUE);
cstmt.execute();
OPAQUE o = cstmt.getOPAQUE(1);
XMLType poxml = XMLType.createXML(o);
// get the XMLDocument as a string...
Document podoc = (Document)poxml.getDOM();
Element elem = podoc.getDocumentElement();
System.out.println (elem.getTagName());
When I ran I am getting the following error in the java getResourceById() method.
Exception in thread main
java.sql.SQLException: ORA-06550: line 1, column 13:
PLS-00382: expression is of wrong type
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:125)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:316)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:282)
at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:639)
at oracle.jdbc.driver.T4CCallableStatement.doOall8(T4CCallableStatement.java:184)
at oracle.jdbc.driver.T4CCallableStatement.execute_for_rows(T4CCallableStatement.java:873)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1086)
at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:2984)
at oracle.jdbc.driver.OraclePreparedStatement.execute(OraclePreparedStatement.java:3076)
at oracle.jdbc.driver.OracleCallableStatement.execute(OracleCallableStatement.java:4273)
at xdb.test.getResourceById(test.java:360)
at xdb.test.main(test.java:142)
Process exited with exit code 1.
what is wrong in the getresource method ?
Also is there any other way you can do the same thing in java using select sql statement or something like that?
Your help is appreciated.

Answer 1

Actually on second thoughts invoke getNonSchemaBasedXML() on the xmltype is you must use thin connection..
Here's an example
package com.oracle.st.xmldb.pm.examples;
import com.oracle.st.xmldb.pm.common.baseApp.BaseApplication;
import java.sql.SQLException;
import oracle.jdbc.OraclePreparedStatement;
import oracle.jdbc.OracleResultSet;
import oracle.xdb.XMLType;
public class GetXMLTypeDOM extends BaseApplication
   protected String driverType;
   protected String getDriver() {
     return this.driverType;
   public void doSomething(String[] Args) throws Exception
     OraclePreparedStatement  statement = null;
     this.driverType = this.OCI_DRIVER;
     this.initializeConnection();
     statement = (OraclePreparedStatement) getConnection().prepareStatement("select object_value from PURCHASEORDER_NSB_XMLTYPE where rownum < 2");
     getDocument(statement);
     statement = (OraclePreparedStatement) getConnection().prepareStatement("select object_value from PURCHASEORDER_SB_XMLTYPE where rownum < 2");
     getDocument(statement);
     getConnection().close();
     this.driverType = this.THIN_DRIVER;
     this.initializeConnection();
     statement = (OraclePreparedStatement) getConnection().prepareStatement("select object_value from PURCHASEORDER_NSB_XMLTYPE where rownum < 2");
     getDocument(statement);
     statement = (OraclePreparedStatement) getConnection().prepareStatement("select object_value from PURCHASEORDER_SB_XMLTYPE where rownum < 2");
     getDocument(statement);
     statement = (OraclePreparedStatement) getConnection().prepareStatement("select x.object_value.createNonSchemaBasedXML() from PURCHASEORDER_SB_XMLTYPE x where rownum < 2");
     getDocument(statement);
     getConnection().close();
   private void getDocument(OraclePreparedStatement statement)
     OracleResultSet resultSet = null;
     org.w3c.dom.Document  doc = null;
     XMLType xml = null;
     try {
       resultSet = (OracleResultSet) statement.executeQuery();
       while (resultSet.next())
          xml = (XMLType) resultSet.getObject(1);
          doc = xml.getDOM();
          System.out.println("DOM Implementation is " + doc.getClass().getName());
          xml.close();
       resultSet.close();
       statement.close();
    catch (SQLException sqle) {
        System.out.println("Caught SQL Exception : " + sqle.getMessage());
  public static void main (String[] args)
    try
      GetXMLTypeDOM example = new GetXMLTypeDOM();
      example.doSomething(args);
    catch (Exception e)
      e.printStackTrace();
}Which generates the following output
C:\TEMP>
C:\Oracle\JDeveloper\jdk\bin\javaw.exe -client -classpath C:\xdb\JDeveloper\Classes;C:\Oracle\product\10.2.0\db_1\jdbc\lib\ojdbc14.jar;C:\Oracle\product\10.2.0\db_1\LIB\xmlparserv2.jar;C:\Oracle\product\10.2.0\db_1\RDBMS\jlib\xdb.jar;C:\xdb\JDeveloper\jakarta-slide-webdavclient-bin-2.1\lib\jakarta-slide-webdavlib-2.1.jar;C:\xdb\JDeveloper\jakarta-slide-webdavclient-bin-2.1\lib\commons-httpclient.jar;C:\xdb\JDeveloper\jakarta-slide-webdavclient-bin-2.1\lib\commons-logging.jar;C:\xdb\JDeveloper\jakarta-slide-webdavclient-bin-2.1\lib\jdom-1.0.jar -Dcom.oracle.st.xmldb.pm.ConnectionParameters=C:\\xdb\\jdeveloper\\SimpleExamples\\LocalConnection.xml -Dhttp.proxyHost=www-proxy.us.oracle.com -Dhttp.proxyPort=80 -Dhttp.nonProxyHosts=192.168.0.77|localhost|192.168.1.1|*.oracle.com|*.us.oracle.com -Dhttps.proxyHost=www-proxy.us.oracle.com -Dhttps.proxyPort=80 -Dhttps.nonProxyHosts=192.168.0.77|localhost|192.168.1.1|*.oracle.com|*.us.oracle.com com.oracle.st.xmldb.pm.examples.GetXMLTypeDOM -mx2048M
ConnectionProvider.establishConnection(): Connecting as SCOTT/TIGER@jdbc:oracle:oci8:@(description=(address=(host=localhost)(protocol=tcp)(port=1521))(connect_data=(service_name=ORA10GR2.xp.mark.drake.oracle.com)(server=DEDICATED)))
ConnectionProvider.establishConnection(): Database Connection Established
DOM Implementation is oracle.xdb.dom.XDBDocument
DOM Implementation is oracle.xdb.dom.XDBDocument
ConnectionProvider.establishConnection(): Connecting as SCOTT/TIGER@jdbc:oracle:thin:@localhost:1521:ORA10GR2
ConnectionProvider.establishConnection(): Database Connection Established
DOM Implementation is oracle.xml.parser.v2.XMLDocument
Caught SQL Exception : Only LOB or String Storage is supported in Thin XMLType
DOM Implementation is oracle.xml.parser.v2.XMLDocument
Process exited with exit code 0.