handle session expiration

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

@@ -0,0 +1,29 @@
+package com.commafeed.backend.dao;
+
+import javax.ejb.Stateless;
+import javax.persistence.NoResultException;
+
+import com.commafeed.backend.model.User;
+import com.commafeed.backend.model.UserSettings;
+import com.commafeed.frontend.utils.ModelFactory.MF;
+import com.uaihebert.factory.EasyCriteriaFactory;
+import com.uaihebert.model.EasyCriteria;
+
+@Stateless
+public class UserSettingsService extends GenericDAO<UserSettings, Long> {
+
+	public UserSettings findByUser(User user) {
+
+		EasyCriteria<UserSettings> criteria = EasyCriteriaFactory
+				.createQueryCriteria(em, getType());
+		criteria.andEquals(MF.i(proxy().getUser()), user);
+
+		UserSettings settings = null;
+		try {
+			settings = criteria.getSingleResult();
+		} catch (NoResultException e) {
+			settings = null;
+		}
+		return settings;
+	}
+}