How determine records in List using @Factory and extendedDataTable?

[akopylov]

Hello.

I use @DataModel and @Factory seam-annotations to make data-list, and use it with extendedDataTable.

In fact, my data model is a List<>.

And everything is ok except one very difficult thing: I can't identify current record when is making selection in a table. The reason: selection has index of row, but I need id.

I saw the example at demo: http://livedemo.exadel.com/richfaces-demo/richfaces/extendedDataTable.jsf?c=extendedDataTable&tab=usage

But it't not my way. This example use ExtendedTableDataModel and DataProvider. And I don't want to use it instead of seam-annotations.

My code is:

<rich:extendedDataTable
                            id="nummBillsTable"
                            value="#{numBillList}"
                            var="currentNumBill"
                            selection="#{rpdAction.selectionNumBill}"
                            selectionMode="single"
                            tableState="#{rpdAction.numBillTableState}"
                            enableContextMenu="false"
                            rows="10"
                            height="500px"
                            width="1700px">

                        <a4j:support event="onselectionchange"
                                     action="#{rpdAction.takeCurrentNumBill}"
                                     reRender="changeValue, addValue, removeValue, changeNumBillPanel, addNumBillPanel">
                        </a4j:support>

                        <!--Some columns with sortBy-->  
</rich:extendedDataTable>

@Name("rpdAction")
@Scope(ScopeType.PAGE)
public class RpdAction {

@DataModel
    private List<NumBill> numBillList;
    private SimpleSelection selectionNumBill = new SimpleSelection();

@Factory("numBillList")
    public void initNumBillList() {
        if (numBillList == null)
            getNumBillList();
    }

public void takeCurrentNumBill() {
        Iterator<Object> iterator = getSelectionNumBill().getKeys();
        while (iterator.hasNext()) {            
            int key = (Integer) iterator.next();
            // key has index of current record in view.
            // And if was sorting before, this index is wrong, I can't use the code:
            currentNumBill = numBillList.get(key);
        }
    }

public void setScrollerNumBillTable(int scrollerNumBillTable) {
        // in this method variable scrollerNumBillTable has index or row (not id)
        this.scrollerNumBillTable = scrollerNumBillTable;
    }

    public SimpleSelection getSelectionNumBill() {
        return selectionNumBill;
    }

}

[ipraveenjain]

you can easily access the entire row ,which you have selected using the index.

and that selected row will have id that you want.

[ilya_shaikovsky]

praveen jain, he mean that it's a problem to hm to assotiate the index with the object in this case. And the reason - filtering and sorting used and indexes does not updated as he need when sorting/filtering applied.

Alexey, will do best to look today Thanks for the pointer again!

[ilya_shaikovsky]

you should get table component instance and use setRowKey and gewtRowData methods. it's the only way without model implementation.