Method Handling

The incoming request is processed as follows.

• If the message contains an _executeMethod attribute, the method name associated with the attribute is executed and the value returned from the readPipeCallback method is returned to the Web browser, as shown in the following example.

  http://ourtest2a/jade/jadehttp.dll?WebTimeSheet&_executeMethod=MyApp::generateTimeSheetXML&employee=WilburWinstanley

• If the message contains an _ jadeReferencePage attribute, the HTML document name associated with this attribute is used to get the HTML document, the HTML is generated, and the response is returned to the Web browser, as shown in the following example.

  http://ourtest2a/jade/jadehttp.dll?WebTimeSheet&_JadeReferencePage=TimeSheetHelp

• If the message contains a _ jadeReferenceClass attribute, a transient instance of the specified class is created and the JadeHTMLClass class processRequest, updateValues, and reply methods are sent to it. The response from the reply message is returned to the Web browser.

• The appropriate session is retrieved or created and the currentSession system variable is set to this value.

• If the incoming request contains none of the above attributes:

  • If there is a start-up form for the application, it is assumed to be a standard Web-enabled application and processed as such.

  • If there is no startup form and there is a home page defined for the application, this document is retrieved, the HTML is generated, and the response is returned to the Web browser.

  • If none of the above conditions is met, the Application::htmlPageNotFoundMessage results, which returns a string to be sent back to the Web browser.

For details about the methods defined in the JadeHTMLClass class, see Chapter 1 of the JADE Encyclopaedia of Classes.