22 lines
682 B
Java
22 lines
682 B
Java
package it.cavallium.dbengine.lucene;
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import it.cavallium.dbengine.utils.LFSR;
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import java.util.concurrent.ThreadLocalRandom;
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import org.apache.lucene.search.FieldComparator;
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import org.apache.lucene.search.FieldComparatorSource;
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import org.apache.lucene.search.Pruning;
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public class RandomFieldComparatorSource extends FieldComparatorSource {
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private final LFSR rand;
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public RandomFieldComparatorSource() {
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this.rand = LFSR.random(24, ThreadLocalRandom.current().nextInt(1 << 24));
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}
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@Override
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public FieldComparator<?> newComparator(String fieldname, int numHits, Pruning pruning, boolean reversed) {
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return new RandomFieldComparator(rand.iterator(), numHits);
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}
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}
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