#381 - Adapt examples to immutable object support.

Provide mutable property accessors to allow object mutation.

mongodb/example/src/main/java/example/springdata/mongodb/projections/Customer.java

@@ -15,7 +15,7 @@
  */
 package example.springdata.mongodb.projections;
 
-import lombok.Value;
+import lombok.Data;
 
 import org.bson.types.ObjectId;
 import org.springframework.data.annotation.Id;
@@ -23,11 +23,17 @@ import org.springframework.data.mongodb.core.mapping.Document;
 
 /**
  * @author Oliver Gierke
+ * @author Mark Paluch
  */
-@Value
+@Data
 @Document
 class Customer {
 
 	@Id ObjectId id = new ObjectId();
 	String firstname, lastname;
+
+	public Customer(String firstname, String lastname) {
+		this.firstname = firstname;
+		this.lastname = lastname;
+	}
 }