From b5f83aca674b8d42cce8f2ef8603ec508d6911d5 Mon Sep 17 00:00:00 2001
From: Robert Varga <robert.varga@pantheon.tech>
Date: Tue, 3 May 2022 23:02:32 +0200
Subject: [PATCH] Seal ValueNode

ValueNode is a common trait for Leaf(SetEntry)Node. Make sure javac
enforces this invariant.

Change-Id: I04a2173a0f1bddeb3c27b292b416c5e1a8a163d6
Signed-off-by: Robert Varga <robert.varga@pantheon.tech>
---
 .../opendaylight/yangtools/yang/data/api/schema/LeafNode.java   | 2 +-
 .../yangtools/yang/data/api/schema/LeafSetEntryNode.java        | 2 +-
 .../opendaylight/yangtools/yang/data/api/schema/ValueNode.java  | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/data/yang-data-api/src/main/java/org/opendaylight/yangtools/yang/data/api/schema/LeafNode.java b/data/yang-data-api/src/main/java/org/opendaylight/yangtools/yang/data/api/schema/LeafNode.java
index a7f5a9e400..e320e04584 100644
--- a/data/yang-data-api/src/main/java/org/opendaylight/yangtools/yang/data/api/schema/LeafNode.java
+++ b/data/yang-data-api/src/main/java/org/opendaylight/yangtools/yang/data/api/schema/LeafNode.java
@@ -18,7 +18,7 @@ import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdent
  *
  * @param <T> Value type
  */
-public interface LeafNode<T> extends ValueNode<T>, DataContainerChild {
+public non-sealed interface LeafNode<T> extends ValueNode<T>, DataContainerChild {
     @Override
     @SuppressWarnings("rawtypes")
     default Class<LeafNode> contract() {
diff --git a/data/yang-data-api/src/main/java/org/opendaylight/yangtools/yang/data/api/schema/LeafSetEntryNode.java b/data/yang-data-api/src/main/java/org/opendaylight/yangtools/yang/data/api/schema/LeafSetEntryNode.java
index d4db64bd4a..9c7df8a6c4 100644
--- a/data/yang-data-api/src/main/java/org/opendaylight/yangtools/yang/data/api/schema/LeafSetEntryNode.java
+++ b/data/yang-data-api/src/main/java/org/opendaylight/yangtools/yang/data/api/schema/LeafSetEntryNode.java
@@ -15,7 +15,7 @@ import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeWithV
  *
  * @param <T> Value type
  */
-public interface LeafSetEntryNode<T> extends ValueNode<T> {
+public non-sealed interface LeafSetEntryNode<T> extends ValueNode<T> {
     @Override
     @SuppressWarnings("rawtypes")
     default Class<LeafSetEntryNode> contract() {
diff --git a/data/yang-data-api/src/main/java/org/opendaylight/yangtools/yang/data/api/schema/ValueNode.java b/data/yang-data-api/src/main/java/org/opendaylight/yangtools/yang/data/api/schema/ValueNode.java
index 1decdc691c..c5b56858ba 100644
--- a/data/yang-data-api/src/main/java/org/opendaylight/yangtools/yang/data/api/schema/ValueNode.java
+++ b/data/yang-data-api/src/main/java/org/opendaylight/yangtools/yang/data/api/schema/ValueNode.java
@@ -12,7 +12,7 @@ package org.opendaylight.yangtools.yang.data.api.schema;
  *
  * @param <V> Value of node, which needs to be a well-published simple value type.
  */
-public interface ValueNode<V> extends NormalizedNode {
+public sealed interface ValueNode<V> extends NormalizedNode permits LeafNode, LeafSetEntryNode {
     /**
      * {@inheritDoc}
      *
-- 
2.36.6