How to get the selected row of a filtered extendedDataTable?

Question

In my application (RichFaces 4.1) I have an extendedDataTable, in my backing bean I need to track the selected rows. I achieve this with the following code:

JSF:

<rich:extendedDataTable id="freie"
    selectionMode="multipleKeyboardFree"
    selection="#{myBean.tableSelection}"
    ...
<a4j:ajax execute="@this" event="selectionchange" 
          listener="#{myBean.tableSelection}"
          render="indicatorPanel" />

Java:

    UIExtendedDataTable dataTable= (UIExtendedDataTable) event.getComponent();
    Object originalKey= dataTable.getRowKey();
    _tableSelectedEntries.clear();
    for (Object selectionKey: _tableSelection) {
        dataTable.setRowKey(selectionKey);
        if (dataTable.isRowAvailable()) {
            _tableSelectedEntries.add((Entry) dataTable.getRowData());
        }
    }
    dataTable.setRowKey(originalKey);

This works fine, as long as the table is not filtered. I use the standard RichFaces way to filter the table:

<rich:column sortBy="#{mitarbeiter.vorname}"
 filterValue="#{mitarbeiterFilterBean.firstNameFilter}"
 filterExpression="#{fn:containsIgnoreCase(mitarbeiter.vorname, mitarbeiterFilterBean.firstNameFilter)}">

When the table is filtered and I select for instance the first row, I get the rowKey for the first row of the unfiltered table in the backing bean. How can I get the rowData of the selected row when my table is filtered?

I think my code works the same way as in the showcase.

Answer 1

I could solve my problem by making my filter bean SessionScoped. I also don't bind the currently selected rows to my backing bean anymore. I get the selected rows using:

public void tableSelection (AjaxBehaviorEvent event) {
    UIExtendedDataTable dataTable= (UIExtendedDataTable) event.getComponent();
    for (Object selectionKey: dataTable.getSelection()) {

It could also be achieved using rowKeyVar to get the correct row index.