[GitHub] [ignite-3] sashapolo commented on a change in pull request #445: IGNITE-15884 Make TableIndexConfigurationSchema polymorphic

[GitBox <gi...@apache.org>]

sashapolo commented on a change in pull request #445:
URL: https://github.com/apache/ignite-3/pull/445#discussion_r750049356



##########
File path: modules/configuration/src/main/java/org/apache/ignite/internal/configuration/util/ConfigurationNotificationsUtil.java
##########
@@ -662,69 +673,82 @@ public Void visitNamedListNode(String key, NamedListNode<?> newNamedList) {
      */
     private static Collection<DynamicConfiguration<InnerNode, ?>> mergeAnyConfigs(
             Collection<DynamicConfiguration<InnerNode, ?>> anyConfigs,
-            DynamicConfiguration<InnerNode, ?> anyConfig
+            @Nullable DynamicConfiguration<InnerNode, ?> anyConfig
     ) {
-        if (anyConfigs.isEmpty()) {
-            return List.of(anyConfig);
-        } else {
-            Collection<DynamicConfiguration<InnerNode, ?>> res = new ArrayList<>(anyConfigs.size() + 1);
-            
-            res.addAll(anyConfigs);
-            res.add(anyConfig);
-            
-            return res;
-        }
+        return Stream.concat(anyConfigs.stream(), Stream.of(anyConfig))

Review comment:
       why not?




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