sorry, but I didnt understand you. which method is responsible for pagination???

I can not see any pagi* in Tag-information

hello Ilja,

I looked into the examples AuctionDataModel.

http://livedemo.exadel.com/richfaces-demo/richfaces/dataTable.jsf?tab=dataModel&cid=6128375

I have some questions about it.

In this example we know which objects exist.

I work with attribute columns and use List<ArrayList<String>> as DataModel. Just a list of Strings, which shoud be shown in dataTable.

please correct me if I stay wrong:

public class AuctionDataModel extends SerializableDataModel {

    private AuctionDataProvider dataProvider;
    private Integer currentPk;    // DO WE NEED currentPk for this case???? what is Pk for the List<ArrayList<String>> ???
    private Map<Integer,ArrayList<Strng>> wrappedData = new HashMap<Integer,ArrayList<String>>();
    private List<Integer> wrappedKeys = null;

    public void walk(FacesContext context, DataVisitor visitor, Range range, Object argument) throws IOException {
        int firstRow = ((SequenceRange)range).getFirstRow();
        int numberOfRows = ((SequenceRange)range).getRows();
        wrappedKeys = new ArrayList<Integer>();
        for (ArrayList<String> item:getDataProvider().getItemsByrange(new Integer(firstRow), numberOfRows)) {
            wrappedKeys.add(item.getPk());        // I dont have Pk on this place
            wrappedData.put(item.getPk(), item);
            visitor.process(context, item.getPk(), argument);
        }
    }

I dont know how should I implement this model for extendedDataTable with <rich:columns

can you please help me.

thank you

I tried to implement PK=item.get(0).

I have modified the example auctionDataModel

Now I have some troubles:

the line:

       dataProvider = lookupInContext(auctionDataProviderExpressionString, AuctionDataProvider.class);

provides null.

If I initialize dataProvide directly like

      private AuctionDataProvider dataProvider = new AuctionDataProvider();

then I have an object and the table is displayd, BUT without data.

The cause is:

the method getRowData()  provides null

the cause is: currentPK is not setted.

on this place the question. who should set the value for currentPK???????

I setted brakepoint into setter and it go in, but the value for currentPK is always null.

any idea?

thank you

Hello Holger,

thank you for your advice. I also tried to implement your example, but the table is still empty. I think I must initialize the data of the table. In your example I can not see any init method.

where come the dataValues from??

my Model looks like:

public ExtendedTableDataModel<ArrayList<String>> getCapitalsDataModel() {
        if (extendedDataModel == null) {
            extendedDataModel = new ExtendedTableDataModel<ArrayList<String>>(new DataProvider<ArrayList<String>>(){

                private static final long serialVersionUID = 5054087821033164847L;

                public ArrayList<String> getItemByKey(Object key) {
                    for(ArrayList<String> c : dataList){
                        if (key.equals(getKey(c))){
                            return c;
                        }
                    }
                    return null;
                }

                public List<ArrayList<String>> getItemsByRange(int firstRow, int endRow) {
                    return dataList.subList(firstRow, endRow);
                }

                public Object getKey(ArrayList<String> item) {
                    return item.get(0);
                }

                public int getRowCount() {
                    return dataList.size();
                }
               
            });
        }
        return extendedDataModel;
    }

is it correct??

has anybody an idea how should I implement DataModel for the dynamic DataTable with attribute columns??