imbajin commented on code in PR #2859:
URL:
https://github.com/apache/incubator-hugegraph/pull/2859#discussion_r2313277326
##########
hugegraph-server/hugegraph-core/src/main/java/org/apache/hugegraph/backend/tx/GraphTransaction.java:
##########
@@ -775,40 +784,103 @@ protected Iterator<Vertex> queryVerticesByIds(Object[]
vertexIds, boolean adjace
return this.queryVerticesByIds(vertexIds, adjacentVertex,
checkMustExist, HugeType.VERTEX);
}
+ @Watched(prefix = "graph")
protected Iterator<Vertex> queryVerticesByIds(Object[] vertexIds, boolean
adjacentVertex,
boolean checkMustExist,
HugeType type) {
Query.checkForceCapacity(vertexIds.length);
- // NOTE: allowed duplicated vertices if query by duplicated ids
- List<Id> ids = InsertionOrderUtil.newList();
- Map<Id, HugeVertex> vertices = new HashMap<>(vertexIds.length);
+ List<Id> ids;
+ Map<Id, HugeVertex> vertices;
+ boolean verticesUpdated = this.verticesInTxSize() > 0;
- IdQuery query = new IdQuery(type);
- for (Object vertexId : vertexIds) {
- HugeVertex vertex;
- Id id = HugeVertex.getIdValue(vertexId);
- if (id == null || this.removedVertices.containsKey(id)) {
- // The record has been deleted
- continue;
- } else if ((vertex = this.addedVertices.get(id)) != null ||
- (vertex = this.updatedVertices.get(id)) != null) {
- if (vertex.expired()) {
- continue;
+ if (vertexIds.length == 1) {
+ Id id = HugeVertex.getIdValue(vertexIds[0]);
+
+ boolean tryQueryBackend = true;
+ if (id == null) {
+ tryQueryBackend = false;
+ ids = ImmutableList.of();
+ } else {
+ ids = ImmutableList.of(id);
+ }
+
+ HugeVertex vertex = null;
+ if (id != null && verticesUpdated) {
+ if (this.removedVertices.containsKey(id)) {
+ // The record has been deleted
+ tryQueryBackend = false;
+ } else if ((vertex = this.addedVertices.get(id)) != null ||
+ (vertex = this.updatedVertices.get(id)) != null) {
+ // Found from local tx
+ tryQueryBackend = false;
+ if (vertex.expired()) {
+ vertex = null;
+ } else {
Review Comment:
Consider extracting the local transaction lookup logic to reduce code
duplication between single-ID and multi-ID paths. This pattern repeats in both
vertex and edge queries:
```java
private HugeVertex findVertexInLocalTx(Id id) {
if (this.removedVertices.containsKey(id)) {
return null; // Removed
}
HugeVertex vertex = this.addedVertices.get(id);
if (vertex == null) {
vertex = this.updatedVertices.get(id);
}
return (vertex != null && !vertex.expired()) ? vertex : null;
}
```
This would simplify the control flow and make the code more maintainable.
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