From 5c66f6261492dbdae024d2979393bf8399ddaf9f Mon Sep 17 00:00:00 2001
From: Robert Varga <robert.varga@pantheon.tech>
Date: Mon, 25 Apr 2022 21:26:06 +0200
Subject: [PATCH] Seal BaseNotification

BaseNotification should never be used directly, only through
Notification and InstanceNotification.

Change-Id: Ib3fd70aeb364523d7f630eb6e882f2308e427884
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>
---
 .../opendaylight/yangtools/yang/binding/BaseNotification.java  | 2 +-
 .../yangtools/yang/binding/InstanceNotification.java           | 3 +--
 .../org/opendaylight/yangtools/yang/binding/Notification.java  | 2 +-
 3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/binding/yang-binding/src/main/java/org/opendaylight/yangtools/yang/binding/BaseNotification.java b/binding/yang-binding/src/main/java/org/opendaylight/yangtools/yang/binding/BaseNotification.java
index a445e418b2..3784f45a44 100644
--- a/binding/yang-binding/src/main/java/org/opendaylight/yangtools/yang/binding/BaseNotification.java
+++ b/binding/yang-binding/src/main/java/org/opendaylight/yangtools/yang/binding/BaseNotification.java
@@ -12,6 +12,6 @@ package org.opendaylight.yangtools.yang.binding;
  * only to tie together semantics of global notifications (as represented by {@link Notification}) and instance
  * notifications (as represented by {@link InstanceNotification}.
  */
-public interface BaseNotification extends DataContainer {
+public sealed interface BaseNotification extends DataContainer permits Notification, InstanceNotification {
 
 }
diff --git a/binding/yang-binding/src/main/java/org/opendaylight/yangtools/yang/binding/InstanceNotification.java b/binding/yang-binding/src/main/java/org/opendaylight/yangtools/yang/binding/InstanceNotification.java
index 83fd1c8806..82becf3a8c 100644
--- a/binding/yang-binding/src/main/java/org/opendaylight/yangtools/yang/binding/InstanceNotification.java
+++ b/binding/yang-binding/src/main/java/org/opendaylight/yangtools/yang/binding/InstanceNotification.java
@@ -19,9 +19,8 @@ import org.eclipse.jdt.annotation.NonNull;
  * @param <T> Parent data tree instance type
  */
 @Beta
-public interface InstanceNotification<N extends InstanceNotification<N, T>, T extends DataObject>
+public non-sealed interface InstanceNotification<N extends InstanceNotification<N, T>, T extends DataObject>
         extends BaseNotification {
-
     @Override
     @NonNull Class<N> implementedInterface();
 }
diff --git a/binding/yang-binding/src/main/java/org/opendaylight/yangtools/yang/binding/Notification.java b/binding/yang-binding/src/main/java/org/opendaylight/yangtools/yang/binding/Notification.java
index 6acaa44d20..962cb88946 100644
--- a/binding/yang-binding/src/main/java/org/opendaylight/yangtools/yang/binding/Notification.java
+++ b/binding/yang-binding/src/main/java/org/opendaylight/yangtools/yang/binding/Notification.java
@@ -13,7 +13,7 @@ package org.opendaylight.yangtools.yang.binding;
  * interface. In case they do, {@link EventInstantAware#eventInstant()} returns the time when this notification was
  * generated.
  */
-public interface Notification<T extends Notification<T> & DataObject> extends BaseNotification {
+public non-sealed interface Notification<T extends Notification<T> & DataObject> extends BaseNotification {
     @Override
     Class<T> implementedInterface();
 }
-- 
2.36.6