add version and created date in quiz result model

src/main/java/application/SBApplication.java

@@ -5,6 +5,7 @@ import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.ComponentScan;
+import org.springframework.data.mongodb.config.EnableMongoAuditing;
 import org.springframework.data.mongodb.repository.config.EnableMongoRepositories;
 
 import com.statestreet.dao.RoleRepository;
@@ -15,7 +16,7 @@ import com.statestreet.utils.CommonUtils;
 @ComponentScan("com.statestreet.*")
 @EnableMongoRepositories(
 		basePackageClasses = UserRepository.class)
-
+@EnableMongoAuditing
 @SpringBootApplication
 public class SBApplication {
 

src/main/java/com/statestreet/model/QuizResult.java

@@ -3,6 +3,7 @@
  */
 package com.statestreet.model;
 
+import java.time.LocalDateTime;
 import java.util.Date;
 
 import javax.validation.constraints.NotBlank;
@@ -10,6 +11,8 @@ import javax.validation.constraints.NotNull;
 
 import org.springframework.data.annotation.CreatedDate;
 import org.springframework.data.annotation.Id;
+import org.springframework.data.annotation.Version;
+import org.springframework.data.domain.Persistable;
 import org.springframework.data.mongodb.core.mapping.Document;
 
 import com.fasterxml.jackson.annotation.JsonFormat;
@@ -27,10 +30,9 @@ import lombok.NoArgsConstructor;
 @AllArgsConstructor
 @NoArgsConstructor
 @Document(collection="Quiz_Result")
-public class QuizResult {
+public class QuizResult implements Persistable<String>{
 	@Id
 	private long quizId;
-	@CreatedDate
 	@JsonFormat(pattern ="yyyy-MMM-dd")
 	private Date quizDate;
 	private boolean hasDiscriptiveQuestion;
@@ -47,4 +49,21 @@ public class QuizResult {
 	private String quizDuration;
 	@NotNull
 	private QuestionSet questionSet;	
+	
+	@CreatedDate
+	private LocalDateTime createdDate;
+	@Version      
+    private Long version;
+	
+	@Override
+	public String getId() {
+		// TODO Auto-generated method stub
+		return Long.toString(quizId);
+	}
+	
+	@Override
+	public boolean isNew() {
+		// TODO Auto-generated method stub
+		return createdDate == null;
+	}
 }

src/main/java/com/statestreet/service/QuizResultServiceImpl.java

@@ -134,7 +134,7 @@ public class QuizResultServiceImpl implements QuizResultService {
 			if(quesMaster.getType().equals(CommonUtils.QuestionType.Maq.name()))
 			{
 				totalMarks=totalMarks+quesMaster.getTotalMarks();
-				if(quesMaster.getCorrectAnswer().size() == quesMaster.getSelectedAnswer().size())
+				if(quesMaster.getCorrectAnswer().size() >= quesMaster.getSelectedAnswer().size())
 				{
 					int marks=0;
 					for(Option objOption:quesMaster.getSelectedAnswer())