44 lines
1.4 KiB
Markdown
44 lines
1.4 KiB
Markdown
# GetIntersection
|
|
|
|
## Request and response syntax
|
|
|
|
A `GetIntersection` call takes as input a `GfsIntersectionRequest` thrift struct.
|
|
|
|
```thrift
|
|
struct GfsIntersectionRequest {
|
|
1: required i64 userId
|
|
2: required list<i64> candidateUserIds
|
|
3: required list<FeatureType> featureTypes
|
|
}
|
|
```
|
|
|
|
The response is returned in a `GfsIntersectionResponse` thrift struct.
|
|
|
|
```thrift
|
|
struct GfsIntersectionResponse {
|
|
1: required i64 userId
|
|
2: required list<GfsIntersectionResult> results
|
|
}
|
|
|
|
struct GfsIntersectionResult {
|
|
1: required i64 candidateUserId
|
|
2: required list<IntersectionValue> intersectionValues
|
|
}
|
|
|
|
struct IntersectionValue {
|
|
1: required FeatureType featureType
|
|
2: optional i32 count
|
|
3: optional list<i64> intersectionIds
|
|
4: optional i32 leftNodeDegree
|
|
5: optional i32 rightNodeDegree
|
|
}(persisted="true")
|
|
```
|
|
|
|
## Behavior
|
|
|
|
The `GfsIntersectionResponse` contains in its `results` field a `GfsIntersectionResult` for every candidate in `candidateIds` which contains an `IntersectionValue` for every `FeatureType` in the request's `featureTypes` field.
|
|
|
|
The `IntersectionValue` contains the size of the intersection between the `leftEdgeType` edges from `userId` and the `rightEdgeType` edges from `candidateId` in the `count` field, as well as their respective degrees in the graphs in `leftNodeDegree` and `rightNodeDegree` respectively.
|
|
|
|
**Note:** the `intersectionIds` field currently only contains `Nil`.
|