jixuan1989 commented on a change in pull request #2677:
URL: https://github.com/apache/iotdb/pull/2677#discussion_r579755728
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File path: server/src/main/java/org/apache/iotdb/db/metadata/MTree.java
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@@ -856,11 +858,46 @@ int getAllTimeseriesCount(PartialPath prefixPath) throws
MetadataException {
if (nodes.length == 0 || !nodes[0].equals(root.getName())) {
throw new IllegalPathException(prefixPath.getFullPath());
}
+ Holder<Integer> countHolder = new Holder<>(0);
try {
- return getCount(root, nodes, 1);
+ getCount(root, nodes, 1, countHolder, false);
} catch (PathNotExistException e) {
throw new PathNotExistException(prefixPath.getFullPath());
}
+ return countHolder.getValue();
+ }
+
+ /** Traverse the MTree to get the count of timeseries. */
+ private void getCount(
+ MNode node, String[] nodes, int idx, Holder<Integer> countHolder,
boolean wildcard)
Review comment:
Holder can be avoided just define the function as `private int getCount`
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