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SirixDB is a hybrid on-disk and in-memory document oriented, versioned database system. It has a lightweight buffer manager, stores everything in a huge persistent and durable tree and allows efficient reconstruction of every revision. Furthermore, SirixDB implements change tracking, diffing and supports time travel queries.

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package io.sirix.index.cas;

import static java.util.Objects.requireNonNull;

import io.sirix.access.DatabaseType;
import io.sirix.api.PageTrx;
import io.sirix.index.IndexDef;
import io.sirix.index.redblacktree.RBTreeWriter;
import io.sirix.index.redblacktree.keyvalue.CASValue;
import io.sirix.index.redblacktree.keyvalue.NodeReferences;
import io.sirix.index.path.summary.PathSummaryReader;

public final class CASIndexBuilderFactory {

  private final DatabaseType databaseType;

  public CASIndexBuilderFactory(final DatabaseType databaseType) {
    this.databaseType = databaseType;
  }

  public CASIndexBuilder create(final PageTrx pageTrx,
      final PathSummaryReader pathSummaryReader, final IndexDef indexDef) {
    final var rbTreeWriter =
        RBTreeWriter.getInstance(this.databaseType, pageTrx, indexDef.getType(), indexDef.getID());
    final var pathSummary = requireNonNull(pathSummaryReader);
    final var paths = requireNonNull(indexDef.getPaths());
    final var type = requireNonNull(indexDef.getContentType());

    return new CASIndexBuilder(rbTreeWriter, pathSummary, paths, type);
  }
}