OAException Message and Dialog Page in OA Framework

You can use OAException (or any of its subclasses) to display a message on an OA Framework page and the OA Framework automatically displays an error message at the top of the current page.

You can display the following standard kinds of messages at the top of a page:

  • Error
  • Warning
  • Confirmation
  • Information

You can explicitly display a message box of any type using the following code in your controller.

OAException message = new OAException("You cannot create a new change order when a Draft version already exits.",OAException.ERROR);

Here you need to construct an oracle.apps.fnd.framework.OAException object and set the kind of message you want (other options are OAException.WARNING, OAException.INFORMATION and OAException.CONFIRMATION). Then you can simply identify this exception for display when the page renders by calling the OAPageContext.putDialogMessage() method.

If — after you call putDialogMessage() in your processFormRequest() method — you want to forward to the current page or another page and display the message at the top of the new target page, you need to call the appropriate oracle.apps.fnd.framework.webui.OAPageContext forwardImmediately*() method. The OA Framework immediately stops processing the page and issues a forward before displaying the messages.

You can register or throw multiple exceptions; the OA Framework combines them into a single message box using the following rules:

  • Since an error is more important than a warning, the message box is titled “Error” if both errors and warnings exist.
  • Confirmations and errors cannot be shown together. In this case, the OA Framework simply ignores the confirmation message(s).
  • You can, however, show confirmations with warnings. The message box is titled “Confirmation,” and it contains both types of messages.

Show the Exception Message on a Dialog Page

You can display an exception as a message in a dialog page using the APIs in the oracle.apps.fnd.framework.webui.OADialogPage class and oracle.apps.fnd.framework.webui.OAPageContext interface.

The OADialogPage class holds properties for the generic dialog page. To create a dialog page object, first use the constructors to instantiate the basic properties, then use the setter methods provided in the class to set additional properties.

To navigate (redirect) to a dialog page, use the OAPageContext.redirectToDialogPage methods. The OAPageContext interface contains the context and state information specific for a client request.

// To Diaplay the Exception on a Dialog page
OAException message = new OAException("You cannot create a new change order when a Draft version already exits.");
OADialogPage dialogPage = new OADialogPage(OAException.ERROR, message, null, "",null);


java.util.Hashtable formParams = new java.util.Hashtable(1);

If you want 2 buttons (Say Cancel and Ok), then put “” instead of null in the OADialogPage dialogPage = new OADialogPage line.

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