Chapter 15 620 You may also want to modify index.html to filter on a different minimum commission level. For example, the following index.html will cause the system to only show trips with commission of $300 or more: <html>   <head>   </head>   <body>     <table width="600">       <tr><td>       <center><h1>Wrox Travel Center</h1></center>       </td></tr>     </table>     <applet archive="aelfred.jar" code="VacationApplet.class" width=600 height=400> <param name="mincomm" value="300">     </applet>   </body> </html> You may want to repeat this test with the Netscape 4.7 and Netscape 6 browsers to convince yourself that this is a cross-browser compatible solution. Finally, we need to test the optimized incremental update mechanism that is built into the system. For this, we will need a testing tool. Compiling and Using the XML-to-RDBMS Data Injection Test Tool The testing tool we look at will allow us to perform three simple RDBMS operations: q Read an XML document called data1.xml containing sell-off information and add the trips to the RDBMS q Read an XML document called data2.xml containing sell-off information and add the trips to the RDMBS q Clear the RDBMS of all records The tool provides a GUI consisting of three buttons. Clicking each button will perform the associated task. The finished GUI should resemble the one below: The testing tool can be found in the projavaxml\Chapter15\tools distribution directory. It consists of the following source files: q TestTool.java q HandlerBase.java q databaseBean.java q sqlBean.java