Trying to make use of ExtendedDataModel for rich:extendedDataTable and develop data lazy loading.

Problem encountered is that Range passed to walk method always has getFirstRow() = 0. Number of rows returned is fine. Does anyone has a clue how to solve this?

Walk looks like this:

    public void walk(FacesContext context, DataVisitor visitor, Range range, Object argument) {
        log.debug("Walking through dataset...");
              
        if (this.documentType != null) {
          Map<String, String> dataFilter = this.createFilterCriteria();
          Map<String, Boolean> dataOrder = this.createOrders();
                
          int docStart = 0;
          int docCount = 0;

          SequenceRange sequenceRange = (SequenceRange) range;
        
          log.debug("DataSet walk rangeStart = " + sequenceRange.getFirstRow());
        
          if (sequenceRange.getFirstRow() >= 0 && sequenceRange.getRows() > 0) {
              docStart = sequenceRange.getFirstRow();
              docCount = sequenceRange.getRows();
          }
        
          log.debug("Starting doc number = " + docStart + "; docCount = " + docCount);
  
          data = this.transformData(listParser.getDocumentList(dataFilter, dataOrder, docStart, docCount));
          for (Map<String, String> t : data) {
              visitor.process(context, getId(t), argument);
          }
        }
  
     }

listParser is EJB that returns list of documents which are transformed within data model for display. data is list of Map<String, String>.

Method getRowCount() calls the same EJB and returns correct number of records.

Development is being done using Jboss EAP 6.1.0.Final