DanGuge commented on code in PR #2295:
URL:
https://github.com/apache/incubator-hugegraph/pull/2295#discussion_r1311593486
##########
hugegraph-core/src/main/java/org/apache/hugegraph/traversal/algorithm/KoutTraverser.java:
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@@ -138,6 +138,38 @@ public KoutRecords customizedKout(Id source, EdgeStep step,
return records;
}
+ public KoutRecords DFSKout(Id source, Steps steps,
+ int maxDepth, boolean nearest,
+ long capacity, long limit) {
+ E.checkNotNull(source, "source vertex id");
+ this.checkVertexExist(source, "source vertex");
+ checkPositive(maxDepth, "k-out max_depth");
Review Comment:
The difference between these two `check` method is that `checkPositive()` is
a static method while `checkVertexExist()` is not.
According to stackoverflow, `this` refers to the object instance and there
is no object instance in a call of a static method.
stackoverflow:
https://stackoverflow.com/questions/11664522/why-cant-we-use-this-keyword-in-a-static-method
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