#355 document, abstract base, traits and example domain

2026-05-15 03:01:12 +00:00 · 2016-06-01 22:20:55 +02:00
parent c1187ae0d7
commit 913411773f
7 changed files with 147 additions and 0 deletions
@@ -0,0 +1,13 @@
+package com.iluwatar.abstractdocument.domain;
+
+import java.util.Optional;
+
+import com.iluwatar.abstractdocument.Document;
+
+public interface HasPrice extends Document {
+	
+	default Optional<Number> getPartner() {
+		return Optional.ofNullable((Number) get("price"));
+	}
+
+}