Configurando DataSource no Jetty

<!-- =============================================================== -->
  <!-- DATASOURCE POSTGRESQL                                           -->
  <!-- =============================================================== -->
  <Call name="addService">
    <Arg>
      <New class="org.mortbay.jetty.plus.DefaultDataSourceService">
        <Set name="Name">DataSourceService</Set> <!-- name of the service -->
		<Set name="JNDI">jdbc/PostgresDS</Set>
		   
            <Call name="addDataSource">
             <Arg>jdbc/PostgresDS</Arg> 
              <Arg>
               <New class="org.enhydra.jdbc.standard.StandardDataSource">
                 <Set name="DriverName">org.postgresql.Driver</Set>
                 <Set name="Url">jdbc:postgresql://192.168.10.69:5432/banco</Set>
                 <Set name="User">postgres</Set>
                 <Set name="Password"></Set>
               </New>
             </Arg>
           </Call>
           
       </New>
     </Arg>
   </Call>

Context context = new InitialContext();
            javax.sql.DataSource dataSource = (DataSource) context.lookup("java:comp/env/jdbc/PostgresDS");