25 lines
816 B
Java
25 lines
816 B
Java
package it.cavallium.dbengine.lucene.searcher;
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import it.cavallium.dbengine.lucene.LuceneUtils;
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import java.util.Comparator;
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import org.apache.lucene.search.FieldDoc;
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import org.apache.lucene.search.ScoreDoc;
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import org.jetbrains.annotations.Nullable;
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record CurrentPageInfo(@Nullable ScoreDoc last, long remainingLimit, int pageIndex) {
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private static final int MAX_ITEMS_PER_PAGE = 100;
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public static final Comparator<ScoreDoc> TIE_BREAKER = Comparator.comparingInt((d) -> d.shardIndex);
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public static final CurrentPageInfo EMPTY_STATUS = new CurrentPageInfo(null, 0, 0);
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int currentPageLimit() {
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if (pageIndex >= 10) { // safety
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return MAX_ITEMS_PER_PAGE;
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}
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var min = Math.min(MAX_ITEMS_PER_PAGE, LuceneUtils.safeLongToInt(pageIndex * (0b1L << pageIndex)));
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assert min > 0;
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return min;
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}
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}
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