kaivalnp commented on code in PR #12679: URL: https://github.com/apache/lucene/pull/12679#discussion_r1362475149
########## lucene/core/src/java/org/apache/lucene/search/AbstractRnnVectorQuery.java: ########## @@ -0,0 +1,105 @@ +/* + * 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.search; + +import java.io.IOException; +import java.util.ArrayList; +import java.util.List; +import java.util.Objects; +import org.apache.lucene.index.FieldInfo; +import org.apache.lucene.index.LeafReaderContext; + +/** + * Search for all (approximate) vectors within a radius using the {@link RnnCollector}. + * + * @lucene.experimental + */ +abstract class AbstractRnnVectorQuery extends AbstractKnnVectorQuery { + private static final TopDocs NO_RESULTS = TopDocsCollector.EMPTY_TOPDOCS; + + protected final float traversalThreshold, resultThreshold; + + public AbstractRnnVectorQuery( + String field, float traversalThreshold, float resultThreshold, Query filter) { + super(field, Integer.MAX_VALUE, filter); + assert traversalThreshold <= resultThreshold; + this.traversalThreshold = traversalThreshold; + this.resultThreshold = resultThreshold; + } + + @Override + protected TopDocs exactSearch(LeafReaderContext context, DocIdSetIterator acceptIterator) + throws IOException { + @SuppressWarnings("resource") + FieldInfo fi = context.reader().getFieldInfos().fieldInfo(field); + if (fi == null || fi.getVectorDimension() == 0) { + // The field does not exist or does not index vectors + return NO_RESULTS; + } + + VectorScorer vectorScorer = createVectorScorer(context, fi); + List<ScoreDoc> scoreDocList = new ArrayList<>(); + + int doc; + while ((doc = acceptIterator.nextDoc()) != DocIdSetIterator.NO_MORE_DOCS) { + boolean advanced = vectorScorer.advanceExact(doc); + assert advanced; + + float score = vectorScorer.score(); + if (score >= resultThreshold) { + scoreDocList.add(new ScoreDoc(doc, score)); + } + } + + TotalHits totalHits = new TotalHits(acceptIterator.cost(), TotalHits.Relation.EQUAL_TO); + return new TopDocs(totalHits, scoreDocList.toArray(ScoreDoc[]::new)); + } + + @Override + // Segment-level results are not sorted (because we do not want to maintain the topK), just + // concatenate them + protected TopDocs mergeLeafResults(TopDocs[] perLeafResults) { + long value = 0; + TotalHits.Relation relation = TotalHits.Relation.EQUAL_TO; + List<ScoreDoc> scoreDocList = new ArrayList<>(); + + for (TopDocs topDocs : perLeafResults) { + value += topDocs.totalHits.value; + if (topDocs.totalHits.relation == TotalHits.Relation.GREATER_THAN_OR_EQUAL_TO) { + relation = TotalHits.Relation.GREATER_THAN_OR_EQUAL_TO; + } + scoreDocList.addAll(List.of(topDocs.scoreDocs)); + } + + return new TopDocs(new TotalHits(value, relation), scoreDocList.toArray(ScoreDoc[]::new)); + } + + @Override + public boolean equals(Object o) { + if (this == o) return true; + if (o == null || getClass() != o.getClass()) return false; + if (!super.equals(o)) return false; Review Comment: This was the default `equals` method generated by the IDE. Made it more in line with other classes now -- 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
