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About Maciej Walkowiak

Auditing entities in Spring Data MongoDB

Spring Data MongoDB 1.2.0 silently introduced new feature: support for basic auditing. Because you will not find too much about it in official reference in this post I will show what benefits does it bring, how to configure Spring for auditing and how to annotate your documents to make them auditable.Auditing let you declaratively tell Spring to store:


First of all Maven dependencies to latest Spring Data MongoDB and Spring Data Commons. Additionally in order to use date-related audit annotations we need to add joda-time to classpath.




In order to enable auditing we need to add <mongo:auditing/> to Spring configuration. Currently there is no way to configure it through Java Config.

<mongo:auditing />

<mongo:mongo id="mongo" />

<bean class="org.springframework.data.mongodb.core.MongoTemplate">
    <constructor-arg name="mongo" ref="mongo" />
    <constructor-arg name="databaseName" value="blog-tests" />


Configuration above provides us way for auditing that includes versioning and timestamps. Example document will look like:

public class Item {
    private String id;


    private Long version;
    private DateTime createdAt;
    private DateTime lastModified;


Now you can save document using MongoTemplate or your repository and all annotated fields are automagically set.

As you have probably noticed I did not use here user related annotations @CreatedBy and @LastModifiedBy. In order to use them we need to tell Spring who is a current user.

First add user related fields to your audited class:

private String createdBy;

private String lastModifiedBy;

Then create your implementation of AuditorAware that will obtain current user (probably from session or Spring Security context – depends on your application):

public class MyAppAuditor implements AuditorAware<String> {

    public String getCurrentAuditor() {
        // get your user name here
        return "John Doe";

Last thing is to tell Spring Data MongoDB about this auditor aware class by little modification in Mongo configuration:

<mongo:auditing auditor-aware-ref="auditor" />
<bean id="auditor" class="pl.maciejwalkowiak.blog.MyAppAuditor"/>


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