Modify message observer

src/main/java/org/acme/CollectEvent.java

@@ -1,11 +0,0 @@
-package org.acme;
-
-import java.io.Serializable;
-
-public interface CollectEvent extends Serializable {
-    Type getType();
-
-    enum Type {
-        CREATION, UPDATE, DELETE;
-    }
-}

src/main/java/org/acme/Suspendable.java

@@ -0,0 +1,6 @@
+package org.acme;
+
+import java.io.Serializable;
+
+public interface Suspendable extends Serializable {
+}

src/main/java/org/acme/UserCreated.java

@@ -3,7 +3,7 @@ package org.acme;
 import java.time.LocalDateTime;
 import java.util.Objects;
 
-public class UserCreated implements CollectEvent {
+public class UserCreated implements Suspendable {
     private String username;
     private LocalDateTime timestamp;
 
@@ -23,11 +23,6 @@ public class UserCreated implements CollectEvent {
         this.timestamp = timestamp;
     }
 
-    @Override
-    public CollectEvent.Type getType() {
-        return Type.CREATION;
-    }
-
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;

src/main/java/org/acme/UserDeleted.java

@@ -3,7 +3,7 @@ package org.acme;
 import java.time.LocalDateTime;
 import java.util.Objects;
 
-public class UserDeleted implements CollectEvent {
+public class UserDeleted implements Suspendable {
     private long id;
     private LocalDateTime timestamp;
 
@@ -23,11 +23,6 @@ public class UserDeleted implements CollectEvent {
         this.timestamp = timestamp;
     }
 
-    @Override
-    public CollectEvent.Type getType() {
-        return Type.DELETE;
-    }
-
     @Override
     public boolean equals(Object o) {
         if (this == o) return true;

src/main/java/org/acme/UserObserver.java

@@ -10,11 +10,11 @@ public class UserObserver {
     private final Logger log = Logger.getLogger(UserObserver.class);
 
     public void onCreation(@Observes(during = TransactionPhase.AFTER_SUCCESS) UserCreated event) {
-        log.info("Arrived event for user " + event.getUsername());
+        log.info("Send event for user " + event);
     }
 
     public void onDelete(@Observes(during = TransactionPhase.AFTER_SUCCESS) UserDeleted event) {
-        log.info("Arrived event for deletion user " + event.getId());
+        log.info("Send event for deletion user " + event);
     }
 
 }

src/main/java/org/acme/UserService.java

@@ -14,10 +14,10 @@ import java.util.stream.Collectors;
 public class UserService {
     private final Logger log = Logger.getLogger(UserService.class);
 
-    private final Event<CollectEvent> collectEventSender;
+    private final Event<Suspendable> collectEventSender;
 
     @Inject
-    public UserService(Event<CollectEvent> collectEventSender) {
+    public UserService(Event<Suspendable> collectEventSender) {
         this.collectEventSender = collectEventSender;
     }