--- /dev/null
+package de.juplo.kafka.wordcount.users;
+
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.Setter;
+import lombok.ToString;
+
+import javax.validation.constraints.NotEmpty;
+
+
+@Getter
+@Setter
+@ToString
+@EqualsAndHashCode(of = "username")
+public class User
+{
+ public enum Sex { FEMALE, MALE, OTHER }
+
+ @NotEmpty
+ private String username;
+
+ private String firstName;
+ private String lastName;
+ private Sex sex;
+}