Who Created/Who Modified

A common scenario in application is to mark entities with the Id of the user who created that entity and who last modified that entity.

Ebean provides a convenient way to do this via the io.ebean.config.CurrentUserProvider interface that you can implement.

The interface only specifies a single method Object currentUser(); which will return your typical entity identifier: Long, String or UUID

Notice that Ebean instantiates the CurrentUserProvider by means of creating a new instance

Example Implementation

This implementation does not work, it's just to provide an idea

/**
 * Returns the current user typically from a Thread local or similar context.
 */
public class MyCurrentUserProvider implements CurrentUserProvider {

  @Override
  public Object currentUser() {
    // Here you get the user id, from some kind of static context access (session information, thread local, etc..)
    return someContext.getId();
  }
}

Activation

In order to tell ebean which class imeplements the interface in your ebean.properties file you need to set the following property: ebean.currentUserProvider=path.to.my.implementation.MyCurrentUserProvider