preparing to load events

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

core/src/main/java/de/srsoftware/umbrella/core/api/UserService.java

@@ -8,6 +8,7 @@ import de.srsoftware.umbrella.core.model.Session;
 import de.srsoftware.umbrella.core.model.Token;
 import de.srsoftware.umbrella.core.model.UmbrellaUser;
 import java.util.Collection;
+import java.util.HashMap;
 import java.util.Map;
 import java.util.Optional;
 
@@ -15,6 +16,7 @@ public interface UserService {
 	void dropSession(Token token) throws UmbrellaException;
 	Session extend(Session session) throws UmbrellaException;
 	Map<Long, UmbrellaUser> list(Integer start, Integer limit, Collection<Long> ids) throws UmbrellaException;
+	HashMap<Long,UmbrellaUser> loader();
 	Session load(Token token) throws UmbrellaException;
 	UmbrellaUser load(Session session) throws UmbrellaException;
 	Optional<UmbrellaUser> load(EmailAddress email) throws UmbrellaException;

core/src/main/java/de/srsoftware/umbrella/core/constants/Text.java

@@ -30,6 +30,7 @@ public class Text {
 
 	public static final String EMAILS_FOR_RECEIVER = "emails for {email}";
 	public static final String EVALUATION          = "evaluation";
+	public static final String EVENT_LIST          = "event list";
 
 	public static final String FILES = "files";