Method setSnapshot

java/src/main/java/org/rocksdb/ReadOptions.java:115–123

If "snapshot" is non-nullptr, read as of the supplied snapshot (which must belong to the DB that is being read and which must not have been released). If "snapshot" is nullptr, use an implicit snapshot of the state at the beginning of this read operation. Default: null @param snapsho

(final Snapshot snapshot)

   * @return the reference to the current ReadOptions.
   */
  public ReadOptions setSnapshot(final Snapshot snapshot) {
    assert(isOwningHandle());
    if (snapshot != null) {
      setSnapshot(nativeHandle_, snapshot.nativeHandle_);
    } else {
      setSnapshot(nativeHandle_, 0l);
    }
    return this;
  }

  /**
   * Returns the current read tier.