Проверьте javadoc для деталей. Мой пример похож на тот, который вы найдете там (только немного расширенный):
public void onModuleLoad() {
final CellTable<Row> table = new CellTable<Row>();
TextColumn<Row> firstColumn = new TextColumn<Starter.Row>() {
@Override
public String getValue(Row object) {
return object.firstColumn;
}
};
table.addColumn(firstColumn, "header one");
TextColumn<Row> secondColumn = new TextColumn<Starter.Row>() {
@Override
public String getValue(Row object) {
return object.secondColumn;
}
};
table.addColumn(secondColumn, "header two");
TextColumn<Row> thirdColumn = new TextColumn<Starter.Row>() {
@Override
public String getValue(Row object) {
return object.thirdColumn;
}
};
table.addColumn(thirdColumn, "header three");
table.setRowCount(getList().size());
final ListDataProvider<Row> dataProvider = new ListDataProvider<Starter.Row>(getList());
dataProvider.addDataDisplay(table);
final SingleSelectionModel<Row> selectionModel = new SingleSelectionModel<Starter.Row>();
table.setSelectionModel(selectionModel);
Button btn = new Button("delete entry");
btn.addClickHandler(new ClickHandler() {
@Override
public void onClick(ClickEvent event) {
Row selected = selectionModel.getSelectedObject();
if (selected != null) {
dataProvider.getList().remove(selected);
}
}
});
RootPanel.get().add(table);
RootPanel.get().add(btn);
}
private class Row {
private String firstColumn;
private String secondColumn;
private String thirdColumn;
public Row(String firstColumn, String secondColumn, String thirdColumn) {
this.firstColumn = firstColumn;
this.secondColumn = secondColumn;
this.thirdColumn = thirdColumn;
}
}
private LinkedList<Row> getList() {
LinkedList<Row> list = new LinkedList<Row>();
list.add(new Row("first", "entry", "foo"));
list.add(new Row("second", "entry", "foo"));
list.add(new Row("third", "entry", "foo"));
list.add(new Row("fourth", "entry", "foo"));
return list;
}