org.neo4j.gds.similarity.knn.KnnMemoryEstimationParametersBuilder Maven / Gradle / Ivy

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/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 */
package org.neo4j.gds.similarity.knn;

public class KnnMemoryEstimationParametersBuilder {

    private final double sampleRate;
    private final int rawK;
    private final KnnSampler.SamplerType samplerType;

    public KnnMemoryEstimationParametersBuilder(double sampleRate, int rawK, KnnSampler.SamplerType samplerType) {
        this.sampleRate = sampleRate;
        this.rawK = rawK;
        this.samplerType = samplerType;
    }

    public KnnMemoryEstimationParameters build(long nodeCount) {
        return new KnnMemoryEstimationParameters(K.create(rawK, nodeCount, sampleRate, 0.5), samplerType);
    }

}