AccountEditFrame.java

package org.prevayler.demos.demo2.gui;
import java.awt.Container;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;
import javax.swing.Box;
import javax.swing.JButton;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextField;
import org.prevayler.Prevayler;
import org.prevayler.demos.demo2.business.Account;
import org.prevayler.demos.demo2.business.AccountListener;
import org.prevayler.demos.demo2.business.transactions.Deposit;
import org.prevayler.demos.demo2.business.transactions.HolderChange;
import org.prevayler.demos.demo2.business.transactions.Withdrawal;

class AccountEditFrame extends AccountFrame implements AccountListener {
  private static final long serialVersionUID=-1881757771183108518L;
  private final Account account;
  private JTextField balanceField;
  private JList historyList;
  AccountEditFrame(  Account account,  Prevayler prevayler,  Container container){
    super("Account " + account.numberString(),prevayler,container);
    this.account=account;
    account.addAccountListener(this);
    accountChanged();
    holderField.addFocusListener(new HolderListener());
    setBounds(50,50,306,300);
  }
  protected void addFields(  Box fieldBox){
    super.addFields(fieldBox);
    fieldBox.add(gap());
    fieldBox.add(labelContainer("Transaction History"));
    historyList=new JList();
    historyList.setEnabled(false);
    fieldBox.add(new JScrollPane(historyList));
    fieldBox.add(gap());
    fieldBox.add(labelContainer("Balance"));
    balanceField=new JTextField();
    balanceField.setEnabled(false);
    fieldBox.add(balanceField);
  }
  protected void addButtons(  JPanel buttonPanel){
    buttonPanel.add(new JButton(new DepositAction()));
    buttonPanel.add(new JButton(new WithdrawAction()));
    buttonPanel.add(new JButton(new TransferAction()));
  }
private class DepositAction extends RobustAction {
    private static final long serialVersionUID=405949418924180386L;
    DepositAction(){
      super("Deposit...");
    }
    public void action() throws Exception {
      Number amount=enterAmount("Deposit");
      if (amount == null)       return;
      _prevayler.execute(new Deposit(account,amount.longValue()));
    }
  }
private class WithdrawAction extends RobustAction {
    private static final long serialVersionUID=-3457941349394635348L;
    WithdrawAction(){
      super("Withdraw...");
    }
    public void action() throws Exception {
      Number amount=enterAmount("Withdrawal");
      if (amount == null)       return;
      _prevayler.execute(new Withdrawal(account,amount.longValue()));
    }
  }
  private Number enterAmount(  String operation) throws Exception {
    String amountText=JOptionPane.showInputDialog(null,"Enter amount",operation,JOptionPane.PLAIN_MESSAGE);
    if (amountText == null)     return null;
    return new Long(parse(amountText));
  }
private class TransferAction extends RobustAction {
    private static final long serialVersionUID=-5062849913422257492L;
    TransferAction(){
      super("Transfer...");
    }
    public void action(){
      new TransferFrame(account,_prevayler,getDesktopPane());
    }
  }
  public void accountChanged(){
    holderField.setText(account.holder());
    historyList.setListData(account.transactionHistory().toArray());
    balanceField.setText(String.valueOf(account.balance()));
  }
private class HolderListener extends FocusAdapter {
    public void focusLost(    FocusEvent e){
      if (holderText().equals(account.holder()))       return;
      try {
        _prevayler.execute(new HolderChange(account,holderText()));
      }
 catch (      Exception exception) {
        RobustAction.display(exception);
      }
    }
  }
}