swaydb.core.seek.CurrentWalker.scala Maven / Gradle / Ivy

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/*
 * Copyright (c) 2019 Simer Plaha (@simerplaha)
 *
 * This file is a part of SwayDB.
 *
 * SwayDB is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * SwayDB 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with SwayDB. If not, see .
 */

package swaydb.core.seek

import swaydb.core.data.KeyValue
import swaydb.data.IO
import swaydb.data.slice.Slice

trait CurrentWalker {

  def levelNumber: String

  def get(key: Slice[Byte]): IO.Async[Option[KeyValue.ReadOnly.Put]]

  def higher(key: Slice[Byte]): IO[Option[KeyValue.ReadOnly.SegmentResponse]]

  def lower(key: Slice[Byte]): IO[Option[KeyValue.ReadOnly.SegmentResponse]]

}