JPA EntityListener getting Principal

Question

Hello,
I have created an EntityListener to set the audit columns when persisting
public void prePersist(Object o) {
if (o instanceof Auditable) {
String name = "SCM";
Auditable auditable = (Auditable)o;
AuditInformation info = auditable.getAuditInformation();
Date date = new Date();
info.setCreatedBy(name);
info.setCreationDate(date);
info.setLastUpdatedBy(name);
info.setLastUpdateDate(date);
public void preUpdate(Object o) {
if (o instanceof Auditable) {
String name = "SCM";
Auditable auditable = (Auditable)o;
AuditInformation info = auditable.getAuditInformation();
Date date = new Date();
info.setLastUpdatedBy(name);
info.setLastUpdateDate(date);
For the moment the name is hard coded. I want to use the name of the Principal
In a session bean is can easly get it using
@Resource EJBContext context;
public String getUserId() {
Principal principal = context.getCallerPrincipal();
if (principal != null) {
return principal.getName();
return "Anonymous";
But I don't realy know how to do this in my EntityListener
Does anyone have a good solution for this?
Regards,
Tim

Answer 1

That is what I'm doing now. I'm doing a JNDI lookup of "java:comp/EJBContext"
It is working well, but I was hoping to avoid the JNDI lookup.
Regards,
Tim