Connecting JdbcRowSet with JNDI Directory Service

This section describes how to connect a JdbcRowSet object to a database server using JNDI directory service to lookup DataSource name.

If a JdbcRowSet object is created without a Connection object, you can provide a DataSource name to the JdbcRowSet object so that it can use a JNDI directory service to lookup a DataSource object by name. The DataSource object will be then used to create a connection object. See the sample statements below:

// Create a JdbcRowSet object without any connection
  JdbcRowSet jrs = new JdbcRowSetImpl();

// Set the DataSource name for JNDI lookup
  jrs.setDataSourceName("jdbc/OracleDS");

// Set a SQL statement
  jrs.setCommand("SELECT 'Hello world!' FROM DUAL");

// Lookup, connect and run the statement
  jrs.execute();

I wrote the following sample to connect a JdbcRowSet object using a JNDI directory service:

/* OracleRowSetDataSource.java
 * Copyright (c) HerongYang.com. All Rights Reserved.
 */
import java.sql.*;
import javax.sql.rowset.RowSetProvider;
import javax.sql.rowset.JdbcRowSet;
public class OracleRowSetDataSource {
  public static void main(String [] args) {
    Connection con = null;
    try {

// RowSetFactory should be used now
//      JdbcRowSet jrs
//        = new com.sun.rowset.JdbcRowSetImpl();
      JdbcRowSet jrs
        = RowSetProvider.newFactory().createJdbcRowSet();

// Set the DataSource name for JNDI lookup
      jrs.setDataSourceName("jdbc/OracleDS");

// Set a SQL statement
      jrs.setCommand("SELECT 'Hello world!' FROM DUAL");

// Connect and run the statement
      jrs.execute();

// Get the result
      jrs.next();
      System.out.println("Result: "+jrs.getString(1));

// Close resources
      jrs.close();
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}

But I failed to set up the JNDI directory service. So I got an exception when running this program:

herong> java -cp .;ojdbc11.jar OracleRowSetDataSource

java.sql.SQLException: JdbcRowSet (connect) JNDI unable to connect
   at com.sun.rowset.JdbcRowSetImpl.connect(JdbcRowSetImpl.java:634)
   at com.sun.rowset.JdbcRowSetImpl.prepare(JdbcRowSetImpl.java:654)
   at com.sun.rowset.JdbcRowSetImpl.execute(JdbcRowSetImpl.java:556)
   at OracleRowSetDataSource.main(OracleRowSetDataSource.java:25)

1 warning

Table of Contents

 About This Book

 JDBC (Java Database Connectivity) Introduction

 JDK (Java SE) Installation

 Oracle Express Edition Installation on Windows

 Oracle JDBC Drivers

Oracle - Reference Implementation of JdbcRowSet

 Overview of RowSet Objects

 Installation of JdbcRowSet Reference Implementation

 Connecting JdbcRowSet to Database Servers

 Connecting JdbcRowSet with a Connection URL

 Connecting JdbcRowSet with a Predefined Connection Object

 Connecting JdbcRowSet with a Predefined ResultSet Object

Connecting JdbcRowSet with JNDI Directory Service

 JdbcRowSet Query Statement with Parameters

 Inserting Rows with JdbcRowSet Objects

 Oracle - PreparedStatement

 Oracle - JBDC CallableStatement

 Oracle CLOB (Character Large Object) - TEXT

 Oracle BLOB (Binary Large Object) - BLOB

 Archived Tutorials

 References

 Full Version in PDF/EPUB