refactor, templates need fixing

src/main/java/mops/gruppen2/domain/event/SetTitleEvent.java

@@ -0,0 +1,41 @@
+package mops.gruppen2.domain.event;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.AllArgsConstructor;
+import lombok.Value;
+import lombok.extern.log4j.Log4j2;
+import mops.gruppen2.domain.exception.NoAccessException;
+import mops.gruppen2.domain.model.group.Group;
+import mops.gruppen2.domain.model.group.wrapper.Title;
+
+import javax.validation.Valid;
+
+/**
+ * Ändert nur den Gruppentitel.
+ */
+@Log4j2
+@Value
+@AllArgsConstructor
+public class SetTitleEvent extends Event {
+
+    @JsonProperty("title")
+    Title title;
+
+    public SetTitleEvent(Group group, String exec, @Valid Title title) {
+        super(group.getId(), exec, null);
+        this.title = title;
+    }
+
+    @Override
+    protected void applyEvent(Group group) throws NoAccessException {
+        group.setTitle(exec, title);
+
+        log.trace("\t\t\t\t\tNeuer Titel: {}", group.getTitle());
+    }
+
+    @Override
+    public String getType() {
+        return EventType.SETTITLE.toString();
+    }
+
+}