Store the values in a non-request backing bean (session, conversation, etc)
On 9/28/06, Aneesha Govil <[EMAIL PROTECTED]> wrote:
I need to store some values on an action and open a new page displaying
something in accordance with the values saved. Is there any workaround to
accomplish this?
Thanks for replying.
Aneesha
On 9/28/06, Andrew Robinson <[EMAIL PROTECTED]> wrote:
> When you redirect to a new page, the bound component should not travel
> to the new view with you, so it should make sense that the component
> binding is now null and if you tried to access it, it would be
> created. I am not 100% sure of what is going on, but that is my best
> guess.
>
> On 9/27/06, Aneesha Govil <[EMAIL PROTECTED]> wrote:
> > Hi,
> >
> > Here is some more information:
> >
> > My backing bean is also the action listener..
> > public class Form implements ActionListener
> >
> > It constructs the datatable in java code and uses component binding.
Each
> > row has a detail button that is coded as:
> >
> > //Add detail column
> > column = new UIColumn();
> > UIOutput header = new UIOutput();
> > header.setValue("Detail");
> > column.setHeader(header);
> >
> > HtmlCommandButton detailButton = new HtmlCommandButton();
> > detailButton.addActionListener(this);
> > detailButton.setValue ("Detail");
> >
> > column.getChildren().add(detailButton);
> > datatable.getChildren().add(column);
> >
> > The processAction(ActionEvent anEvent) sets a String[] and opens the
detail
> > page:
> >
> > public void processAction(ActionEvent anEvent) throws
> > AbortProcessingException {
> >
> > UIComponent tmpComponent = anEvent.getComponent ();
> >
> > while (null != tmpComponent && !(tmpComponent instanceof UIData)) {
> > tmpComponent = tmpComponent.getParent();
> > }
> >
> > if (tmpComponent != null && (tmpComponent instanceof UIData)) {
> > Object tmpRowData = ((UIData) tmpComponent).getRowData();
> > if (tmpRowData instanceof String[]) {
> > detail = (String[]) tmpRowData;
> > if (detail != null) {
> > try {
> >
> > FacesContext.getCurrentInstance
().getExternalContext().redirect("detail.faces");
> > }
> > catch (IOException ex) {
> >
> > System.err.println("IOException"+ex.getMessage());
> > System.err.println(ex.getStackTrace());
> > }
> > }
> > }
> > }
> > }
> >
> > Now when the detail.jsp opens, it gives a null pointer exception because
> > String[] detail is null again.
> >
> > Can anyone help me figure out what is being done wrong here?
> > Please help.
> >
> > Thanks
> >
> >
> > On 9/27/06, Aneesha Govil < [EMAIL PROTECTED]> wrote:
> > > Hi,
> > >
> > > I have a simple usecase as follows:
> > >
> > > 1. Use a dropdown to select a table
> > > 2. Display some table data with "detail" button. On clicking the
detail
> > button, store the row information and redirect to detail page.
> > > 3. Display the data that was stored in step 2.
> > >
> > > I am using an ActionListener for the detail button that stores the row
> > data. I have debugged this, it gets stored. However, after redirect the
data
> > is wiped out, the property is null again. I am using another propery to
> > create HtmlPanelGroup in java code. This also gets reinitialized.
Strangely,
> > all other properties of the bean remain intact.
> > >
> > > Can anyone help with this?
> > > I can provide the source code and whatever information is required.
This
> > seems like a really weird problem. Why aren't other values wiped out?
> > >
> > > Please help!
> > >
> > > Thanks,
> > > Aneesha
> > >
> >
> >
>
