set parameters for delete query

src/main/java/com/commafeed/backend/services/CleaningService.java

@@ -1,26 +1,36 @@
 package com.commafeed.backend.services;
 
+import java.util.Date;
+
+import javax.ejb.Schedule;
 import javax.ejb.Stateless;
 import javax.inject.Inject;
 import javax.persistence.EntityManager;
 import javax.persistence.PersistenceContext;
 import javax.persistence.Query;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 @Stateless
 public class CleaningService {
 
+	protected final static Logger log = LoggerFactory.getLogger(CleaningService.class);
+
 	@Inject
 	ApplicationSettingsService applicationSettingsService;
 
 	@PersistenceContext
 	EntityManager em;
 
-//	@Schedule(hour = "*")
-	protected void cleanOldStatuses() {
-		int keepStatusDays = applicationSettingsService.get()
-				.getKeepStatusDays();
-		if (keepStatusDays > 0) {
+	// every day at midnight
+	@Schedule(hour = "*", minute = "*", persistent = false)
+	private void cleanOldStatuses() {
+		Date threshold = applicationSettingsService.get().getUnreadThreshold();
+		if (threshold != null) {
+			log.info("cleaning old statuses");
 			Query query = em.createNamedQuery("Statuses.deleteOld");
+			query.setParameter("date", threshold);
 			query.executeUpdate();
 		}
 	}