use faster query for 'all unread'

src/main/java/com/commafeed/backend/dao/FeedEntryStatusDAO.java

@@ -265,6 +265,32 @@ public class FeedEntryStatusDAO extends GenericDAO<FeedEntryStatus> {
 		return lazyLoadContent(includeContent, entries);
 	}
 
+	public List<FeedEntryStatus> findAllUnread(User user, Date newerThan,
+			int offset, int limit, ReadingOrder order, boolean includeContent) {
+
+		CriteriaQuery<FeedEntryStatus> query = builder.createQuery(getType());
+		Root<FeedEntryStatus> root = query.from(getType());
+
+		List<Predicate> predicates = Lists.newArrayList();
+
+		predicates.add(builder.equal(root.get(FeedEntryStatus_.user), user));
+		predicates.add(builder.isFalse(root.get(FeedEntryStatus_.read)));
+
+		if (newerThan != null) {
+			predicates.add(builder.greaterThanOrEqualTo(
+					root.get(FeedEntryStatus_.entryInserted), newerThan));
+		}
+
+		query.where(predicates.toArray(new Predicate[0]));
+		orderStatusesBy(query, root, order);
+
+		TypedQuery<FeedEntryStatus> q = em.createQuery(query);
+		limit(q, offset, limit);
+		setTimeout(q);
+
+		return lazyLoadContent(includeContent, q.getResultList());
+	}
+
 	/**
 	 * Map between subscriptionId and unread count
 	 */
@@ -318,6 +344,12 @@ public class FeedEntryStatusDAO extends GenericDAO<FeedEntryStatus> {
 		setTimeout(query, applicationSettingsService.get().getQueryTimeout());
 	}
 
+	public void markAllEntries(User user, Date olderThan) {
+		List<FeedEntryStatus> statuses = findAllUnread(user, null, -1, -1,
+				null, false);
+		markList(statuses, olderThan);
+	}
+
 	public void markSubscriptionEntries(List<FeedSubscription> subscriptions,
 			Date olderThan) {
 		List<FeedEntryStatus> statuses = findUnreadBySubscriptions(

src/main/java/com/commafeed/frontend/pages/NextUnreadRedirectPage.java

@@ -54,10 +54,8 @@ public class NextUnreadRedirectPage extends WebPage {
 		List<FeedEntryStatus> statuses = null;
 		if (StringUtils.isBlank(categoryId)
 				|| CategoryREST.ALL.equals(categoryId)) {
-			List<FeedSubscription> subscriptions = feedSubscriptionDAO
+			statuses = feedEntryStatusDAO.findAllUnread(user, null, 0, 1,
-					.findAll(user);
+					order, true);
-			statuses = feedEntryStatusDAO.findBySubscriptions(subscriptions,
-					null, null, 0, 1, order, true);
 		} else {
 			FeedCategory category = feedCategoryDAO.findById(user,
 					Long.valueOf(categoryId));

src/main/java/com/commafeed/frontend/rest/resources/CategoryREST.java

@@ -110,9 +110,8 @@ public class CategoryREST extends AbstractResourceREST {
 			List<FeedSubscription> subscriptions = feedSubscriptionDAO
 					.findAll(getUser());
 			if (unreadOnly) {
-				list = feedEntryStatusDAO.findUnreadBySubscriptions(
+				list = feedEntryStatusDAO.findAllUnread(getUser(),
-						subscriptions, newerThanDate, offset, limit + 1, order,
+						newerThanDate, offset, limit + 1, order, true);
-						true);
 			} else {
 				list = feedEntryStatusDAO.findBySubscriptions(subscriptions,
 						null, newerThanDate, offset, limit + 1, order, true);
@@ -226,10 +225,7 @@ public class CategoryREST extends AbstractResourceREST {
 				req.getOlderThan());
 
 		if (ALL.equals(req.getId())) {
-			List<FeedSubscription> subscriptions = feedSubscriptionDAO
+			feedEntryStatusDAO.markAllEntries(getUser(), olderThan);
-					.findAll(getUser());
-			feedEntryStatusDAO
-					.markSubscriptionEntries(subscriptions, olderThan);
 		} else if (STARRED.equals(req.getId())) {
 			feedEntryStatusDAO.markStarredEntries(getUser(), olderThan);
 		} else {