dosubot[bot] commented on issue #2407:
URL:
https://github.com/apache/incubator-hugegraph/issues/2407#issuecomment-1876599762
_🤖_
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Based on the context you've provided, you're correct that the
`queryAdjacentVertices`, `queryEdges`, and `TraversalUtil.filterResult` methods
are key areas to modify for implementing multithreading in data filtering.
Here's a more detailed guide on where and how you might make these
modifications:
1. `queryAdjacentVertices` method: This method is located in the
`HugeVertexStep` class in the
`hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/traversal/optimize/HugeVertexStep.java`
file. You would need to modify this method to use multithreading when
retrieving adjacent vertices from the graph database.
```java
protected Iterator<Vertex> queryAdjacentVertices(Iterator<Edge> edges) {
// Your multithreading code here
}
```
2. `queryEdges` method: This method is also located in the `HugeVertexStep`
class. You would need to modify this method to use multithreading when
retrieving edges from the graph database.
```java
protected Iterator<Edge> queryEdges(Query query) {
// Your multithreading code here
}
```
3. `TraversalUtil.filterResult` method: This method is located in the
`TraversalUtil` class at
`hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/traversal/optimize/TraversalUtil.java`.
You would need to modify this method to use multithreading when filtering the
data.
```java
public static <E extends Element> Iterator<E> filterResult(
List<HasContainer> hasContainers, Iterator<E> iterator) {
// Your multithreading code here
}
```
Please note that implementing multithreading in these methods would require
careful consideration of thread safety and potential race conditions. You would
need to ensure that shared resources are properly synchronized to prevent data
inconsistencies.
Also, keep in mind that the `TraversalUtil.filterResult` method is used in
the `queryAdjacentVertices` and `queryEdges` methods. So, any changes you make
to the `filterResult` method will affect these methods as well.
I hope this helps guide you in the right direction. If you have any more
questions or need further clarification, feel free to ask.
## Sources
-
[hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/traversal/optimize/HugeVertexStep.java](https://github.com/apache/incubator-hugegraph/blob/master/hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/traversal/optimize/HugeVertexStep.java)
-
[hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/traversal/optimize/TraversalUtil.java](https://github.com/apache/incubator-hugegraph/blob/master/hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/traversal/optimize/TraversalUtil.java)
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