Problems JDBC Dynamic Credentials

Question

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I am using Jdev 10.1.2 with ADF, and in the application that I use we have implemented the use of DynamicJDBCCredentials. The particularitity is that the work form is the following one, When initiating, the application must be connected with a user that is taken pre-defined from a file properties, this will show the screen of login, in which the user along with enters his data the selection of the company that wish, when doing this and to press ok, the application would have to change to the user and password of which appmod this connecting itself to the DB, the seteos of user/password takes control correctly, but appmodule does not change the connection and I do not understand because… somebody Will be able to help me with this? From already thank you very much.
Estimados: Estoy usando Jdev 10.1.2 con ADF, y en la aplicacion que utilizo hemos implementado el uso de DynamicJDBCCredentials. La particularidad es que la forma de trabajo es la siguiente, Al iniciar, la aplicacion debe conectarse con un usuario que se toma pre-definido desde un archivo properties, esto mostrará la pantalla de login, en la cual el usuario ingresa sus datos junto con la seleccion de la empresa que desea, al hacer esto y presionar ok, la aplicacion debería cambiar el usuario y password con el cual el appmod se esta conectando a la DB, los seteos de user/password se hacen correctamente, pero el appmodule no cambia la conexion y no entiendo porque ... Podrá alguien ayudarme con esto? Desde ya muchas gracias.

Answer 1

I should preface this with a warning that I'm not all that familiar with what you are trying to do. However, it should be possible to use very similar code to what is shown in the How To document for JSPs. In the JSP example, the code is inline part of the JSP. uiXML doesn't mix code and UI, so this code would therefore be located in a method event handler.
The first thing to do would be to create a uiXML page with form fields for username and password. I would use a messageTextInput for these fields (with the secret attribute set to true for the password field). I would add a "Login" submitButton, and then add a ctrl:event="Login" attribute to the button so that it will fire a UIX Controller "Login" event.
I would add a handler for the "Login" event in the handlers section of the uiXML page, and use a method event handler to call out to Java code. The method event handler has access to the HTTPSession and the submitted username and password, so you should be able to get the HTTPContainer and manipulate the session. The only major difference with the JSP example, would be that the JSP example uses the <jbo:ApplicationModule> tag in a try/catch block to attempt the connection, and you would need to use the regular BC4J Java APIs. If the connection was sucessful, your event hander would return an EventResult for the next paeg in your application, if there was an error you could return an event result for the same page displaying the error (as discussed in the Handling Errors chapter of the UIX Developer's Guide).
Whenever discussing login procedures, it is worth pointing out the TrivialPageFlowEngine in the UIX Controller which is useful in enforcing that the user has gone through your login procedure prior to jumping to any page in the application.
Hope this helps!