Hi guys, so, I achieved do it!
Thanks the both, I'm so happy to have achieved.
I really had of implement a MaterialGridDataSource replete of little things.
I go leave the source code for somebody that can to need in the future.
> @SuppressWarnings("all")
> public class MaterialGridDataSource implements GridDataSource {
>
> private final List list;
> private int columnId;
> private TipoAtributo tipoAtributo;
>
> public MaterialGridDataSource(final Collection collection) {
> assert collection != null;
> list = CollectionFactory.newList(collection);
> }
>
> public int getAvailableRows() {
> return list.size();
> }
>
> public void prepare(int startIndex, int endIndex, List<SortConstraint>
> sortConstraints) {
> for (SortConstraint constraint : sortConstraints) {
> final ColumnSort sort = constraint.getColumnSort();
>
> if (sort == ColumnSort.UNSORTED)
> continue;
>
> final PropertyConduit conduit = constraint.getPropertyModel().getConduit();
> try {
> columnId = Integer.parseInt(constraint.getPropertyModel().getId());
> } catch (NumberFormatException e) {
> columnId = -1;
> }
> final String columnName = constraint.getPropertyModel().getLabel();
>
> tipoAtributo = null;
>
> //System.out.println(columnId + " - " + columnName);
>
>
> final Comparator valueComparator = new Comparator<Comparable>() {
> public int compare(Comparable o1, Comparable o2) {
>
> // Simplify comparison, and handle case where both are
> // nulls.
>
> if(tipoAtributo == TipoAtributo.DATA) {
> DateFormat formatter = new SimpleDateFormat("EEE MMM dd HH:mm:ss z yyyy",
> new Locale("pt", "BR"));
> Date d1 = null, d2 = null;
> try {
> o1 = formatter.parse((String) o1);
> o2 = formatter.parse((String) o2);
> } catch (ParseException e) {
> System.out.println("Erro em " + this);
> e.printStackTrace();
> }
> }
>
> if (o1 == o2)
> return 0;
>
> if (o2 == null)
> return 1;
>
> if (o1 == null)
> return -1;
>
> return o1.compareTo(o2);
> }
> };
>
> final Comparator rowComparator = new Comparator() {
> public int compare(Object row1, Object row2) {
>
> Comparable value1 = null, value2 = null;
>
> if(columnId >= 0) {
> Material linha = (Material) row1;
>
> for(int i =0; i < linha.getValoresAtributo().size(); i++)
> if(linha.getValoresAtributo().get(i).getAtributo().getNome().equals(columnName))
> {
> value1 = (Comparable) conduit.get(linha.getValoresAtributo().get(i));
> if(linha.getValoresAtributo().get(i).getAtributo().getTipoAtributo() ==
> TipoAtributo.DATA)
> tipoAtributo = TipoAtributo.DATA;
> break;
> }
>
> linha = (Material) row2;
>
> for(int i =0; i < linha.getValoresAtributo().size(); i++)
> if(linha.getValoresAtributo().get(i).getAtributo().getNome().equals(columnName))
> {
> value2 = (Comparable) conduit.get(linha.getValoresAtributo().get(i));
> break;
> }
>
> } else {
> value1 = (Comparable) conduit.get(row1);
> value2 = (Comparable) conduit.get(row2);
> }
> return valueComparator.compare(value1, value2);
> }
> };
>
> final Comparator reverseComparator = new Comparator() {
> public int compare(Object o1, Object o2) {
> int modifier = sort == ColumnSort.ASCENDING ? 1 : -1;
>
> return modifier * rowComparator.compare(o1, o2);
> }
> };
>
> // We can freely sort this list because its just a copy.
> Collections.sort(list, reverseComparator);
> }
> }
>
> /**
> * Returns the type of the first element in the list, or null if the list
> is
> * empty.
> */
> public Class getRowType() {
> return list.isEmpty() ? null : list.get(0).getClass();
> }
>
> public Object getRowValue(int index) {
> return list.get(index);
> }
>
> }
