first version of pattern without Tests

extension-objects/src/main/java/concreteextensions/Soldier.java

@@ -0,0 +1,21 @@
+package concreteextensions;
+
+import abstractextensions.SoldierExtension;
+import units.SoldierUnit;
+
+/**
+ * Created by Srdjan on 26-Apr-17.
+ */
+public class Soldier implements SoldierExtension {
+
+  private SoldierUnit unit;
+
+  public Soldier(SoldierUnit soldierUnit) {
+    this.unit = soldierUnit;
+  }
+
+  @Override
+  public void soldierReady() {
+    System.out.println("[Solider] " + unit.getName() + "  do command");
+  }
+}