weizihan0110 commented on a change in pull request #2468:
URL: https://github.com/apache/iotdb/pull/2468#discussion_r565326776
##########
File path: server/src/main/java/org/apache/iotdb/db/metadata/mnode/MNode.java
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@@ -250,4 +252,20 @@ void serializeChildren(MLogWriter logWriter) throws
IOException {
entry.getValue().serializeTo(logWriter);
}
}
+
+ public void replaceChild(String measurement, MNode newChildNode) {
+ MNode child = this.getChild(measurement);
+ if (child == null) {
+ return;
+ }
+ Map<String, MNode> children = child.getChildren();
+ //newChildNode builds parent-child relationship
+ newChildNode.setChildren(children);
+ children.forEach((name, childNode) -> childNode.setParent(newChildNode));
Review comment:
Thanks. Next time I'll check all of code shell that sonarcloud reports
and fix all the reasonable ones.
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