samples: add comment to regional endpoint (#339)

googleapis · Sep 2, 2020 · f379673 · f379673
1 parent 785981a
commit f379673
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/samples/snippets/src/main/java/pubsub/PublishWithOrderingKeys.java b/samples/snippets/src/main/java/pubsub/PublishWithOrderingKeys.java
@@ -47,6 +47,8 @@ public static void publishWithOrderingKeysExample(String projectId, String topic
     // Create a publisher and set message ordering to true.
     Publisher publisher =
         Publisher.newBuilder(topicName)
+            // Sending messages to the same region ensures they are received in order
+            // even when multiple publishers are used.
             .setEndpoint("us-east1-pubsub.googleapis.com:443")
             .setEnableMessageOrdering(true)
             .build();