Entry.java

package postingrules;

/*Generated by MPS */

import mf.MfDate;
import mf.Money;
import java.util.Collection;

public class Entry {
  private MfDate myDate;
  private Account myAccount;
  private Money myAmount;
  public Entry(Money amount, MfDate date) {
    this.myAmount = amount;
    this.myDate = date;
  }
  /*package*/ Entry copy() {
    return new Entry(myAmount, myDate);
  }
  public Account getAccount() {
    return myAccount;
  }
  public Money getAmount() {
    return myAmount;
  }
  public MfDate getDate() {
    return myDate;
  }
  public void setAccount(Account arg) {
    assert myAccount == null : "account cannot be changed once set";
    myAccount = arg;
  }
  @Override
  public String toString() {
    return myAccount.toString() + ": " + myAmount.toString();
  }
  public static Money total(Collection<Entry> entries) {
    if (entries.isEmpty()) {
      return null;
    }
    Money result = null;
    for (Entry e : entries) {
      if (null == result) {
        result = e.getAmount();
      } else
      result = result.add(e.getAmount());
    }
    return result;
  }
}