msokolov commented on code in PR #924: URL: https://github.com/apache/lucene/pull/924#discussion_r882698450
########## lucene/backward-codecs/src/test/org/apache/lucene/backward_codecs/lucene92/Lucene92RWHnswVectorsFormat.java: ########## @@ -0,0 +1,71 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.lucene.backward_codecs.lucene92; + +import java.io.IOException; +import org.apache.lucene.codecs.KnnVectorsReader; +import org.apache.lucene.codecs.KnnVectorsWriter; +import org.apache.lucene.index.SegmentReadState; +import org.apache.lucene.index.SegmentWriteState; +import org.apache.lucene.util.hnsw.HnswGraph; + +public final class Lucene92RWHnswVectorsFormat extends Lucene92HnswVectorsFormat { + + /** Default number of maximum connections per node */ + public static final int DEFAULT_MAX_CONN = 16; + + /** + * Default number of the size of the queue maintained while searching during a graph construction. + */ + public static final int DEFAULT_BEAM_WIDTH = 100; + + static final int DIRECT_MONOTONIC_BLOCK_SHIFT = 16; + + /** + * Controls how many of the nearest neighbor candidates are connected to the new node. Defaults to + * {@link #DEFAULT_MAX_CONN}. See {@link HnswGraph} for more details. + */ + private final int maxConn; + + /** + * The number of candidate neighbors to track while searching the graph for each newly inserted + * node. Defaults to to {@link #DEFAULT_BEAM_WIDTH}. See {@link HnswGraph} for details. + */ + private final int beamWidth; + + /** Constructs a format using default graph construction parameters. */ + public Lucene92RWHnswVectorsFormat() { Review Comment: I moved the support for these from the read-only format to the read-write format because they are only used for writing. But I see the benefit of consistency too. I can move them back -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For additional commands, e-mail: issues-h...@lucene.apache.org
