Rich Domain Model.pdf

책임 기반 구현
public abstract class DiscountStrategy {
public Money calculateFee(Showing showing) {
for(Rule each : rules) {
if (each.isStatisfiedBy(showing)) {
return getDiscountedFee(showing);
}
}
}
return showing.getFixedFee();
abstract protected Money getDiscountedFee(Showing showing);
public class AmountDiscountStrategy extends DiscountStrategy {
protected Money getDiscountedFee(Showing showing) {
return showing.getFixedFee().minus(discountAmount);
public class NonDiscountStrategy extends DiscountStrategy {
}
protected Money getDiscountedFee(Showing showing) {
}
public returnclass showing.getFixedFee();
PercentDiscountStrategy extends DiscountStrategy {
} protected Money getDiscountedFee(Showing showing) {
} return showing.getFixedFee().minus(showing.getFixedFee().times(percent));
}
}
38 / 문서의 제목