Does Neo4j SDN use the getters when saving to Neo4j?

I have a person object which has a property username.

The setter looks like this.

public void setUsername (String username) {
      this.username = username;
}

and the getter looks like

public void getUsername () {
     return StringUtils.capitalize (username);
}

However, when I try to use my repository to get the person with username "Foo" which was set as setUsername ("foo") I have to use the capitalized version in personRepo.findByUsername("Foo").

Does SDN use the getUsername () when saving objects to database. The username object is of course private to the class.