Transient bool VO attribute not displaying correctly in table on data fetch

Question

Hello Forum,
I have a 'select all' button that programmatically sets a boolean transient attribute on a view object to 'true'. The code to iterate through all the rows in the VO is in a ViewObjectImpl subclass and looks like this:
    public int setAllRowsSelected(String attrDenotingSelection){
        RowSetIterator tempRSI = this.createRowSetIterator(null);
        tempRSI.reset();
        int count = 0;
        while(tempRSI.hasNext()){
            Row row = tempRSI.next();
            row.setAttribute(attrDenotingSelection, true);
            count++;
        tempRSI.closeRowSetIterator();
        return count;
    }The VOimpl method is invoked via an actionListener from a managed bean:
    public void rowSelectForBulkAction(ValueChangeEvent valueChangeEvent) {
        if (!PhaseId.INVOKE_APPLICATION.equals(valueChangeEvent.getPhaseId())) {
            valueChangeEvent.setPhaseId(PhaseId.INVOKE_APPLICATION);
            valueChangeEvent.queue();
        } else {
            String attrNameDenotingSelection =
                (String)valueChangeEvent.getComponent().getAttributes().get("attrDenotingSelection");
            ArrayList params = new ArrayList();
            params.add(attrNameDenotingSelection);
            JUCtrlActionBinding actionBinding = (JUCtrlActionBinding)EL.get("#{bindings.getCountOfSelectedRows}");
            actionBinding.setParams(params);
            Integer count = (Integer)actionBinding.execute();
            if (!actionBinding.getErrors().isEmpty()) {
                throw new RuntimeException("Error occured in \'getCountOfSelectedRows\' binding method. Investigate back end to find source of error.");
            EL.set("#{viewScope.countOfSelectedRows}", count);
    }The VOImple method is exposed for the bean to call it.
The returned 'count' is used determine whether other UI controls should be enabled.
The code works fine -- all rows have the attribute set to 'true', but the problem I have is when the table is scrolled and the next 25 (or whatever the rangesize is) is fetched for the table, the selectBooleanCheckbox component is not checked. The first 25 or so are checked (i.e., true), but the others aren't.
The only way I can seem to get all selectBooleanCheckbox components to show as checked is if I set the range to a large number that will hopefully exceed the greatest number of rows ever.
This seems wrong.
Is this a bug or is there some setting I am missing in order to get the selectBooleanCheckbox to display correctly?

Answer 1

In stead of custom method in VO try custom method in AM along following lines
this.getVO().setRangeSize(-1);
Row [] rows = getVO().getAllRowsInRange();
loop through rows setting the transient attribute.
Anyway setting rangeSize to -1 will force all records to be retrieve.
HTH
Kenneth