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Pull Request Overview
This PR introduces a performance optimization by adding the AdjacentEdgesQuery class to improve edge querying for adjacent vertices. The change refactors the existing condition-based edge querying to use a more specialized and optimized query implementation.
Key changes:
- Introduces the new
AdjacentEdgesQueryclass with specialized query handling for edge traversal - Refactors method signatures to consistently use
Id[]instead of mixed array/list types - Updates query construction to utilize the new specialized query type when appropriate
Reviewed Changes
Copilot reviewed 9 out of 9 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
| AdjacentEdgesQuery.java | New specialized query class for optimized adjacent edge queries |
| GraphTransaction.java | Updated query construction logic to use AdjacentEdgesQuery and simplified method signatures |
| ConditionQuery.java | Added flatten capability interface and improved query relation handling |
| ConditionQueryFlatten.java | Enhanced flattening logic with better condition handling |
| Condition.java | Changed return types from Condition to Relation for better type safety |
| HugeVertexStep.java | Updated to use mapElName2Id instead of mapElName2El |
| HugeTraverser.java | Simplified array conversion in edge query construction |
| EdgesQueryIterator.java | Removed unnecessary array conversion |
| PerfExampleBase.java | Simplified edge query construction using new GraphTransaction method |
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| if (true) { | ||
| return new AdjacentEdgesQuery(sourceVertex, direction, edgeLabels); | ||
| } |
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The hardcoded if (true) condition is unclear and should be replaced with a meaningful condition or removed entirely if the new AdjacentEdgesQuery should always be used.
| if (this.conditions.isEmpty()) { | ||
| // UnsupprotedOperationException when ImmutableList.removeIf() |
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There's a typo in the comment: 'UnsupprotedOperationException' should be 'UnsupportedOperationException'.
| if (this.conditions.isEmpty()) { | |
| // UnsupprotedOperationException when ImmutableList.removeIf() | |
| // UnsupportedOperationException when ImmutableList.removeIf() |
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| public AdjacentEdgesQuery(Id ownerVertex, Directions direction, | ||
| Id[] edgeLabels) { | ||
| super(HugeType.EDGE); |
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Consider adding defensive null check for 'ownerVertex' before using it in toString() and other methods to prevent potential NPE.
| } | ||
| if (key == HugeKeys.DIRECTION) { | ||
| return (T) this.direction; | ||
| } |
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The logic in selfCondition() at line 186 should return an array for consistency when edgeLabels.length > 1, or throw the exception immediately instead of having an unreachable return statement.
| } | ||
| if (this.edgeLabels.length > 1) { | ||
| return false; | ||
| } |
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Consider using Collections.emptyList() instead of creating a new ArrayList when no flattening is needed for better memory efficiency.
| } | ||
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| public static Condition in(HugeKeys key, List<?> value) { | ||
| public static Relation in(HugeKeys key, List<?> value) { |
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The return type changes from Condition to Relation break API compatibility. Ensure all calling code has been updated to handle Relation instead of Condition.
| Arrays.stream(edgeLabels) | ||
| .map(SchemaElement::id) | ||
| .collect(Collectors.toList()))); | ||
| if (true) { |
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The hardcoded 'if (true)' should be replaced with a proper condition or configuration flag. This looks like debug/test code that should not be merged.
| if (true) { | ||
| return new AdjacentEdgesQuery(sourceVertex, direction, edgeLabels); | ||
| } | ||
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Unreachable code after 'if (true)' block should be removed to avoid confusion and maintain code cleanliness.
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Due to the lack of activity, the current pr is marked as stale and will be closed after 180 days, any update will remove the stale label |
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Change-Id: Ie7169fdb707495ff0a298ea97fa4d105117a132d