Question

我有以下代码：

 private void filter2method() {

    filterR.getDocument().addDocumentListener(new DocumentListener() {//currently the document listener is set for textfield called filterR1

          @Override
          public void insertUpdate(DocumentEvent e) {
              newFilter();
          }

          @Override
          public void removeUpdate(DocumentEvent e) {
              newFilter();
          }

          @Override
          public void changedUpdate(DocumentEvent e) {
              newFilter();
          }

          private void newFilter() {
              RowFilter <DefaultTableModel, Object>rf =null;
              List<RowFilter<Object,Object>> rfs =
                      new ArrayList<RowFilter<Object,Object>>();

              ArrayList textAL = new ArrayList();
              String text = filterR.getText();
              textAL.add(text);
              String text1 = filterR1.getText();
              textAL.add(text1);
              String text2 = filterR2.getText();
              textAL.add(text2);


              try {
                  for (int i = 0; i < textAL.size(); i++) {
                      rfs.add(RowFilter.regexFilter("(?i)" + textAL.get(i), 2, 6, 11));
                  }

                  rf = RowFilter.andFilter(rfs);

              } catch (java.util.regex.PatternSyntaxException e) {
                  return;
              }

              sorter.setRowFilter(rf);
          } }

    );
}

目前文档侦听器设置为textfield filterR但我希望侦听器还包括filterR1和filterR2，因为我在搜索textfield filterR1和filterR2的代码中有一个搜索过滤器，即组合过滤器搜索。

如何更改文档侦听器以覆盖超过1个文本字段？

Answer 1

好吧，您可以将DocumentListener分配给变量

DocumentListener docListener = new DocumentListener() {
...
};

并将其用于所有文本字段

filterR.getDocument().addDocumentListener(docListener);
filterR1.getDocument().addDocumentListener(docListener);
filterR2.getDocument().addDocumentListener(docListener);

...

多个文本字段的文档侦听器

1 个答案: