XML file Upload in ADF UI page

Question

Hi,
I have following requirement:
a) There will be an upload button on the ADF UI page.
b) The ADF UI will allow user to browse and select the XML file
c) Once XML file is selected there will be a Load button.
Note: I am fine till step c)....
d) Upon the Load, UI Screen should be populated with the XML content.
e.g. UI screen will have Book Title and Author text boxes and the data for Title and Author should be loaded from XML file.
e) Once data is loaded in ADF UI page (from XML) , it should allow user to modify Title and Author in UI screen.
f) After modifying the data, user should be allowed to save modified content either in XML file or Database.
Note: On the OTN forum I posted similar question and I found the partial solution of using the URLConnection Data control, however this data control does not allow you to modify the content on the ADF UI page.
Thanks

Answer 1

Hi,
Note: On the OTN forum I posted similar question and I found the partial solution of using the URLConnection Data control, however this data control does not allow you to modify the content on the ADF UI page.
Not quite true what you say. The data control shows the data as read only. However, setting the updateable property on the metadata will allow you to create an input form, which is editable. For this, in the Data Control for the URL data control, select the collection and choose "Edit Definition" from the context menu. Select Attributes and if this doesn't show the attributes, follow the link in the Attributes field. Then select each attribute and set the updateable property using the PI
The question then is how you perform the update, which is what the URL data control doesn't do for you. For this you need to expose methods in a POJO that you then expose as a POJO data control. With your knowledge about the location and name of the XML file, you can then use JAXB to upload the XML, or a database bound collection (EJB, ADF BC or JDBC) to write changes to the database. Note that JAXB could also be used read from teh XML file and show the data in the UI using the JavaBean Data Control.
To access the object to use for updating the XML file or the database, you use ((DCIteratorBinding)bindings.get("IteratorNameInPageDef")).getCurrentRow().getDataProvider()
Frank