Github user toyboxman commented on a diff in the pull request:
https://github.com/apache/incubator-griffin/pull/442#discussion_r226905150
--- Diff:
service/src/main/java/org/apache/griffin/core/measure/entity/Rule.java ---
@@ -81,6 +81,9 @@ Licensed to the Apache Software Foundation (ASF) under one
@Column(name = "\"out\"")
private String out;
+ @JsonInclude(JsonInclude.Include.NON_NULL)
--- End diff --
do we have a standard api definition, implicit or explicit depend on what
api style exposes to users
---
