多列上的 Java RowFilter

Question

我想在多个列上对 JTable 进行排序/过滤，f.E.

Column1 Column2
   一个 1
   乙二
   2

我想按 Column1 = b 和 Column2 = 2 对这张表进行排序。

MyTableModel model = new MyTableModel();
sorter = new TableRowSorter<MyTableModel>(model);
table = new JTable(model);
table.setRowSorter(sorter);

...

private void newFilter() {
    RowFilter<MyTableModel, Object> rf = null;
    //If current expression doesn't parse, don't update.
    try {
        rf = RowFilter.regexFilter(filterText.getText(), 0);
    } catch (java.util.regex.PatternSyntaxException e) {
        return;
    }
    sorter.setRowFilter(rf);
}

但是如何对多个列进行排序？

Answer 1

您可以创建 RowFilter.AndFilter 并传递您需要的所有过滤器：

List<RowFilter<M, O>> listOfFilters = new ArrayList<>();
... add filters into list
RowFilter.andFilter(listOfFilters);

Answer 2

只需从 RowFilter 中删除参数“0”即可对所有列进行排序：

rf = RowFilter.regexFilter(filterText.getText());

Answer 3

我使用了 2 个输入 JTextField（filterTextOras、filterTextClient），如果任一文本字段为空且 compoundRowFilter 都包含文本，则使用简单的 RowFilter。

protected void Filtru() {
        RowFilter<MyTableModel, Object> rfo = null;
        RowFilter<MyTableModel, Object> rfc = null;
        if(filterTextClient.getText().equals("")){
            if(filterTextOras.getText().equals("")){
                sorter.setRowFilter(null);
            } else {
                rfc = RowFilter.regexFilter(filterTextOras, 1);//column 1
                sorter.setRowFilter(rfc);
            }
        } else {
            if(filterTextOras.getText().equals("")){
                rfo = RowFilter.regexFilter(filterTextClient.getText(), 0);//column 0
                sorter.setRowFilter(rfo);
            }
            else{
                List<RowFilter<Object,Object>> filters = new ArrayList<RowFilter<Object,Object>>(2);
                filters.add(RowFilter.regexFilter(filterTextClient.getText(), 0, 0));
                filters.add(RowFilter.regexFilter(filterTextOras.getText(), 1));
                RowFilter<Object,Object> compoundRowFilter = RowFilter.andFilter(filters);
                sorter.setRowFilter(compoundRowFilter);
            }
        }
    }