* Handle the event. Get all implementations of persistence providers
* and notify this information to the listeners.
* @param event The event to handle.
*/
public void handle(final IEvent event) {
EZBEventContainerStarting containerEvent = (EZBEventContainerStarting) event;
PersistenceUnitInfo[] infos = containerEvent.getPersistenceUnitInfos();
if (infos != null && infos.length > 0) {
List<Integer> persistenceProvidersImpl = new ArrayList<Integer>(infos.length);
int implementationIndex;
// Get implementations of persistence providers.