Ninja framework changes

ninja/src/main/java/models/User.java

@@ -0,0 +1,22 @@
+package models;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+
+@Entity
+public class User {
+    
+    @Id
+    @GeneratedValue(strategy=GenerationType.AUTO)
+    Long id;
+    
+    public String firstName;
+    public String email;
+    
+    public String toString() {
+        return firstName + " : " + email;
+    }
+    
+}