public boolean isReadOnly() {
   JournalEntryTableModel m = (JournalEntryTableModel) entry_table_.getModel();
   try {
     return !m.getJournalEntry().allowedMoreCommits();
   } catch (LoggedInException e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
   } catch (DatabaseObjectException e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
   } catch (SQLException e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
   }
   return true;
 }
  /**
   * This panel will handle the GUI interactions for JournalEntry objects. If <code>je</code> is not
   * null it will be displayed, and if possible it will be editable. If <code>je</code> is null then
   * a new JournalEntry object can be created and registered with the financial engine.
   *
   * @param je
   */
  public JournalEntryPanel(JournalEntry je) {
    super(JSplitPane.VERTICAL_SPLIT);
    this.setPreferredSize(new Dimension(500, -1));

    occurred_ = new DateField(null);
    description_ = new JTextField();
    this.listeners_ = new ArrayList<SaveListener<JournalEntry>>();

    JButton add_entry = new JButton("Add Entry");
    add_entry.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            updateDescriptionPanel(null);
          }
        });
    JButton del_entry = new JButton("Remove Entry");
    del_entry.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            int row = entry_table_.getSelectedRow();
            JournalEntryTableModel m = (JournalEntryTableModel) entry_table_.getModel();
            m.removeLineItem(row);
          }
        });
    journals_combo_ = new JComboBox();
    try {
      Collection<Journal> journals =
          FinanceManager.instance().getJournalManager().getJournals().values();
      for (Journal j : journals) {
        journals_combo_.addItem(j);
      }
    } catch (DatabaseException e1) {
      // TODO Auto-generated catch block
      e1.printStackTrace();
    } catch (SQLException e1) {
      // TODO Auto-generated catch block
      e1.printStackTrace();
    }

    JButton save_to_journal = new JButton("Save to Journal");
    save_to_journal.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            JournalEntryTableModel m = (JournalEntryTableModel) entry_table_.getModel();
            JournalEntry je = m.getJournalEntry();
            je.setDescription(description_.getText());
            je.setOccurredTime(occurred_.getDate());
            if (je.getLineItems().size() > 0) {
              Journal selected_journal = (Journal) journals_combo_.getSelectedItem();
              if (selected_journal != null) {
                try {
                  Integer journal_key =
                      FinanceManager.instance()
                          .getJournalManager()
                          .addJournalEntry(selected_journal, je);

                  System.out.println("Entry id in journal: " + journal_key);

                  if (journal_key != null) {
                    makeGUIReadOnly();
                    fireJournalEntrySave(je);
                  }

                } catch (FinanceException e1) {
                  // TODO Auto-generated catch block
                  JOptionPane.showMessageDialog(JournalEntryPanel.this, e1.getMessage());
                  e1.printStackTrace();
                } catch (DatabaseException e1) {
                  // TODO Auto-generated catch block
                  JOptionPane.showMessageDialog(JournalEntryPanel.this, e1.getMessage());
                  e1.printStackTrace();
                } catch (SQLException e1) {
                  // TODO Auto-generated catch block
                  JOptionPane.showMessageDialog(JournalEntryPanel.this, e1.getMessage());
                  e1.printStackTrace();
                }
              }
            }
          }
        });

    options_ = new JPanel();
    options_.setLayout(new FlowLayout(FlowLayout.LEFT));
    options_.add(add_entry);
    options_.add(del_entry);
    options_.add(new JLabel("Journal"));
    options_.add(journals_combo_);
    options_.add(save_to_journal);
    JournalEntryTableModel m =
        (je == null) ? new JournalEntryTableModel() : new JournalEntryTableModel(je);
    entry_table_ = new JournalEntryTable(m);
    if (this.isReadOnly()) {
      this.makeGUIReadOnly();
    }

    entry_table_
        .getSelectionModel()
        .addListSelectionListener(
            new ListSelectionListener() {
              public void valueChanged(ListSelectionEvent e) {
                if (e.getValueIsAdjusting()) {
                  return;
                }

                int row = entry_table_.getSelectedRow();
                JournalEntryTableModel m = (JournalEntryTableModel) entry_table_.getModel();
                updateDescriptionPanel(m.getLineItem(row));
              }
            });

    entry_table_.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
    entry_table_.setPreferredSize(new Dimension(-1, 400));
    entry_table_.setAutoCreateRowSorter(true);
    entry_table_.setRowHeight(25);

    JScrollPane entry_view =
        new JScrollPane(
            entry_table_,
            JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
            JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);

    JPanel entry_details = new JPanel();
    description_.setPreferredSize(new Dimension(300, 20));
    if (je != null) {
      occurred_.setDate(je.getOccurredTime());
      description_.setText(je.getDescription());
    }
    entry_details.setLayout(new FlowLayout(FlowLayout.LEFT));
    entry_details.add(new JLabel("Occurred"));
    entry_details.add(occurred_);
    entry_details.add(new JLabel("Description"));
    entry_details.add(description_);

    JPanel top_wrap = new JPanel(new BorderLayout());
    top_wrap.add(options_, BorderLayout.NORTH);
    top_wrap.add(entry_details, BorderLayout.SOUTH);

    JPanel wrap = new JPanel(new BorderLayout());
    wrap.add(top_wrap, BorderLayout.NORTH);
    wrap.add(entry_view, BorderLayout.CENTER);
    this.setTopComponent(wrap);
    this.setDefaultBottom();
  }