import com.google.gwt.cell.client.ClickableTextCell; //导入依赖的package包/类
@Override
protected void createColumns(DefaultCellTable<Reference> table, ListDataProvider<Reference> dataProvider) {
    Column<Reference, String> nameColumn = new Column<Reference, String>(new ClickableTextCell()) {
        @Override
        public String getValue(Reference reference) {
            return reference.localName();
        }
    };
    nameColumn.setFieldUpdater(new FieldUpdater<Reference, String>() {
        @Override
        public void update(int index, Reference object, String value) {
            _presenter.onNavigateToReference(object, _application);
        }
    });
    nameColumn.setSortable(true);

    ColumnSortEvent.ListHandler<Reference> sortHandler = new ColumnSortEvent.ListHandler<Reference>(
            dataProvider.getList());
    sortHandler.setComparator(nameColumn, createColumnCommparator(nameColumn));

    table.addColumn(nameColumn, Singleton.MESSAGES.label_name());

    table.addColumnSortHandler(sortHandler);
    table.getColumnSortList().push(nameColumn);
}
 

import com.google.gwt.cell.client.ClickableTextCell; //导入依赖的package包/类
public SortableHeader(SortableHeaderGroup sortableHeaderGroup,
                      String text,
                      Column<T, C> column) {
    super(new ClickableTextCell());
    this.sortableHeaderGroup = sortableHeaderGroup;
    this.text = text;
    this.column = column;
    setUpdater(new ValueUpdater<String>() {
        public void update(String s) {
            SortableHeader.this.sortableHeaderGroup.headerClicked(SortableHeader.this);
        }
    });
}
 

import com.google.gwt.cell.client.ClickableTextCell; //导入依赖的package包/类
SortableHeader(String text) {
    super(new ClickableTextCell());
    if (template == null) {
        template = GWT.create(Template.class);
    }
    this.text = text;
}
 

import com.google.gwt.cell.client.ClickableTextCell; //导入依赖的package包/类
public SynonymColumn() {
	super(new ClickableTextCell());
}
 

import com.google.gwt.cell.client.ClickableTextCell; //导入依赖的package包/类
public NameColumn() {
	super(new ClickableTextCell());
	setSortable(true);
}
 

import com.google.gwt.cell.client.ClickableTextCell; //导入依赖的package包/类
public SynonymColumn() {
	super(new ClickableTextCell());
	setSortable(true);
}
 

import com.google.gwt.cell.client.ClickableTextCell; //导入依赖的package包/类
@Column(header = "First Name", cellType = ClickableTextCell.class)
//   @ColumnActions(position = 0, fieldUpdater = FieldUpdaterImpl.class)
   public String getFirstName()
   {
      return firstName;
   }
 

import com.google.gwt.cell.client.ClickableTextCell; //导入依赖的package包/类
@Column(header = "Last Name", cellType = ClickableTextCell.class)
//   @ColumnActions(position = 1)
   public String getLastName()
   {
      return lastName;
   }
 

import com.google.gwt.cell.client.ClickableTextCell; //导入依赖的package包/类
public WeekDayColumn(WeekDay day) {
  super(new ClickableTextCell());
  this.day = day;
}