# Uses of Class
org.apache.lucene.util.hnsw.IncrementalHnswGraphMerger

Packages that use IncrementalHnswGraphMerger
Package
Description
org.apache.lucene.util.hnsw
Navigable Small-World graph, nominally Hierarchical but currently only has a single layer.

## Uses of IncrementalHnswGraphMerger in org.apache.lucene.util.hnsw

Subclasses of IncrementalHnswGraphMerger in org.apache.lucene.util.hnsw
Modifier and Type
Class
Description
`class`
`ConcurrentHnswMerger`
This merger merges graph in a concurrent manner, by using `HnswConcurrentMergeBuilder`
Methods in org.apache.lucene.util.hnsw that return IncrementalHnswGraphMerger
Modifier and Type
Method
Description
`IncrementalHnswGraphMerger`
IncrementalHnswGraphMerger.`addReader(KnnVectorsReader reader, MergeState.DocMap docMap, Bits liveDocs)`
Adds a reader to the graph merger if it meets the following criteria: 1.