public boolean equals(Object anObject) {
if (isZero()) if (anObject instanceof IMoney) return ((IMoney) anObject).isZero();
if (anObject instanceof Money) {
Money aMoney = (Money) anObject;
return aMoney.currency().equals(currency()) && amount() == aMoney.amount();
}
return false;
}
/**
* Specifies the price of the line item. Required.
*
* @param price of the line item, {@code price.amount() <= Integer.MAX_VALUE}
* @throws IllegalStateException if the price is already set
* @throws IllegalArgumentException if {@code price.amount() > Integer.MAX_VALUE}
* @return this builder
*/
public Builder price(Money price) {
if (this.price != null) alreadySet("price");
if (price.amount() > Integer.MAX_VALUE) {
throw new IllegalArgumentException("price.amount() > Integer.MAX_VALUE");
}
this.price = price;
return this;
}
private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
in.defaultReadObject();
if (price == null) throw new AssertionError("missing price");
if (price.amount() > Integer.MAX_VALUE) {
throw new AssertionError("price.amount() > Integer.MAX_VALUE");
}
if (description != null && description.length() > MAX_DESCRIPTION_LENGTH) {
throw new AssertionError("description.length() > 140");
}
}
public IMoney addMoney(Money m) {
if (m.currency().equals(currency())) return new Money(amount() + m.amount(), currency());
return MoneyBag.create(this, m);
}