Hi, I finally tracked down an issue that I was having in a Stripes 1.5.4 BETA, Stripersist, Spring, JPA, Hibernate, etc... application:
We essentially have a Services layer that sits in front of the Dao layer and as such are following the following example: http://www.stripesframework.org/display/stripes/Stripes+Spring+JPA Furthermore, as ALL beans in Spring default to being Singletons it is important that the Service initialize itself when it (the Singleton) gets created otherwise we end up with multiple users of the Singleton trying to initialize it / adding synchronized blocks et al... which is UGLY to say the least.... So we have the following code excerpt: @Service public class ModalityServiceImpl implements ModalityService { @Autowired private ModalityDao modalityDaoImpl; public ModalityServiceImpl() { this.initService(); } private void initAfter() { List<Modality> modalityList = this.modalityDaoImpl.findAll(); // ** NPE ** - this.modalityDaoImpl ** IS NULL ** this.modalityCache = new ModalityCache(); this.modalityCache.init(modalityList); } However, the above results in a NullPointerException at the line marked with ** NPE ** because this.modalityDaoImpl is NULL which clearly indicates that Spring has not completed the Autowiring and we are trying to invoke a method on. A similar scenario occurs even if we didn't Autowire the DAO and simply had the following for the attribute: private ModalityDao modalityDaoImpl = new ModalityDaoImpl(); In this latter case there is Stripersist except when trying to lookup the persistence unit with a NULL entityFactories hashtable. I guess what I need is a WAY to perform POST initialization on this Spring managed Service object. If I was dealing with an ActionBean then an @AFTER on a particular life cycle event I imagine would do the trick but this is not an Action Bean. Any ideas anyone??? Perhaps using the SpringIntereceptorSupport class???? Thanks, --Nikolaos ------------------------------------------------------------------------------ _______________________________________________ Stripes-users mailing list Stripes-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/stripes-users
