@Value.Immutable
@Value.Style(stagedBuilder = true)
public interface AggregateReport<T extends Comparable<? super T>> extends Comparable<AggregateReport<T>> {

    T aggregationKey();

    BigDecimal valueA();

    BigDecimal valueB();

    BigDecimal valueC();

    @Override
    default int compareTo(AggregateReport<T> other) {
        return aggregationKey().compareTo(other.aggregationKey());
    }
}

  @Generated(from = "AggregateReport", generator = "Immutables")
  public interface AggregationKeyBuildStage<T extends Comparable<? super T>> extends BuildStart<T extends Comparable<? super T>> {}

  @Generated(from = "AggregateReport", generator = "Immutables")
  public interface AggregationKeyBuildStage<T extends Comparable<? super T>> {
    /**
     * Initializes the value for the {@link AggregateReport#aggregationKey() aggregationKey} attribute.
     * @param aggregationKey The value for aggregationKey 
     * @return {@code this} builder for use in a chained invocation
     */
    ValueABuildStage<T> aggregationKey(T aggregationKey);
  }