Fix Discounter examples

2017-02-06 09:05:55 +01:00
parent 77f1a97e8f
commit 13f2eef879
2 changed files with 5 additions and 1 deletions
--- a/core-java/src/main/java/com/baeldung/strategy/Discounter.java
+++ b/core-java/src/main/java/com/baeldung/strategy/Discounter.java
@@ -5,6 +5,10 @@ import java.util.function.UnaryOperator;

 public interface Discounter extends UnaryOperator<BigDecimal> {

+    default Discounter combine(Discounter after) {
+        return value -> after.apply(this.apply(value));
+    }
+
    static Discounter christmas() {
        return (amount) -> amount.multiply(BigDecimal.valueOf(0.9));
    }