feat: add new FieldBehavior NON_EMPTY_DEFAULT

Google APIs · copybara-github · commit aa136fa6649f · 2021-06-30T10:41:49.000-07:00
PiperOrigin-RevId: 382337225
diff --git a/google/api/field_behavior.proto b/google/api/field_behavior.proto
@@ -81,4 +81,10 @@ enum FieldBehavior {
   // in any arbitrary  order, rather than the order the user originally
   // provided. Additionally, the list's order may or may not be stable.
   UNORDERED_LIST = 6;
+
+  // Denotes that this field returns a non-empty default value if not set.
+  // This indicates that if the user provides the empty value in a request,
+  // a non-empty value will be returned. The user will not be aware of what
+  // non-empty value to expect.
+  NON_EMPTY_DEFAULT = 7;
 }
