Question

public class Job_GUI extends javax.swing.JFrame {

    private JobDTO jdto;

    public Job_GUI() {
        initComponents();
    }

      private void menuEditJobActionPerformed(java.awt.event.ActionEvent evt) {
            editJob.setVisible(true);
            //here I want to obtain the updated dto. 
        }

  } 


public class JobDTO extends BaseDTO {
//setters and getters

}


class ListDataUI { 

    private void initListeners() {
        summaryTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        summaryTable.getSelectionModel().addListSelectionListener(new ListSelectionListener() {

            @Override
            public void valueChanged(ListSelectionEvent e) {
                if (!e.getValueIsAdjusting()) {
                    final int selectedRowIndex = summaryTable.getSelectedRow();
                    if (selectedRowIndex != -1) {
                        BaseDTO dto = data.get(summaryTable.convertRowIndexToModel(selectedRowIndex));
                    } else {
                    }
                }
            }
        });

    }

}

我不确定如何获取BaseDTO对象dto到menuEditJobActionPerformed方法，以便显示对象的所有值。事件发生时如何从valueChanged传递此信息？我只是使用一个表，当选择一行时，dto状态发生变化，需要将这个新状态传递给类Job_GUI actionperformed方法

Answer 1

在dto声明后立即声明class GUI {。

这样它就具有全局范围，所以你的所有功能都可以看到它。

class GUI {
  BaseDTO dto;

  private void menuEditJobActionPerformed(java.awt.event.ActionEvent evt) {
        editJob.setVisible(true);
        //Now you can access "dto"
    }

  } 

class ListDataUI { 

    private void initListeners() {
        summaryTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        summaryTable.getSelectionModel().addListSelectionListener(new ListSelectionListener() {

            @Override
            public void valueChanged(ListSelectionEvent e) {
                if (!e.getValueIsAdjusting()) {
                    final int selectedRowIndex = summaryTable.getSelectedRow();
                    if (selectedRowIndex != -1) {
                        /*BaseDTO */dto = data.get(summaryTable.convertRowIndexToModel(selectedRowIndex));
                        //not declaring a new object
                    } else {
                    }
                }
            }
        });

    }

}

从重写方法获取对象

1 个答案: