Object

swaydb.persistent

Map

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object Map extends LazyLogging

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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. def apply[K, V](dir: Path, maxOpenSegments: Int = 1000, memoryCacheSize: Int = 100.mb, blockSize: Int = 4098, mapSize: Int = 4.mb, mmapMaps: Boolean = true, recoveryMode: RecoveryMode = RecoveryMode.ReportFailure, mmapAppendix: Boolean = true, mmapSegments: MMAP = MMAP.WriteAndRead, segmentSize: Int = 2.mb, appendixFlushCheckpointSize: Int = 2.mb, otherDirs: Seq[Dir] = Seq.empty, memorySweeperPollInterval: FiniteDuration = 10.seconds, fileSweeperPollInterval: FiniteDuration = 10.seconds, mightContainFalsePositiveRate: Double = 0.01, compressDuplicateValues: Boolean = true, deleteSegmentsEventually: Boolean = false, lastLevelGroupBy: Option[KeyValues] = Some(DefaultGroupBy()), acceleration: (LevelZeroMeter) ⇒ Accelerator = Accelerator.noBrakes())(implicit keySerializer: Serializer[K], valueSerializer: Serializer[V], keyOrder: KeyOrder[Slice[Byte]] = KeyOrder.default, fileSweeperEC: ExecutionContext = SwayDB.defaultExecutionContext, memorySweeperEC: ExecutionContext = SwayDB.defaultExecutionContext): IO[Boot, Map[K, V, ApiIO]]

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    A pre-configured, 8 Leveled, persistent database where Level1 accumulates a minimum of 10 Segments before pushing Segments to lower Level.

    A pre-configured, 8 Leveled, persistent database where Level1 accumulates a minimum of 10 Segments before pushing Segments to lower Level.

    For custom configurations read documentation on website: http://www.swaydb.io/configuring-levels

    K

    Type of key

    V

    Type of value

    dir

    Root directory for all Level where appendix folder & files are created

    maxOpenSegments

    Number of concurrent Segments opened

    memoryCacheSize

    Size of in-memory key-values

    mapSize

    Size of LevelZero's maps (WAL)

    mmapMaps

    Memory-maps LevelZero maps files if set to true else reverts java.nio.FileChannel

    mmapAppendix

    Memory-maps Levels appendix files if set to true else reverts java.nio.FileChannel

    mmapSegments

    Memory-maps Levels Segment files if set to true else reverts java.nio.FileChannel

    segmentSize

    Minimum size of Segment files in each Level

    appendixFlushCheckpointSize

    Size of the appendix file before it's flushed. Appendix files are append only log files. Flushing removes deleted entries in the file hence reducing the size of the file.

    otherDirs

    Secondary directories for all Levels where Segments value distributed.

    memorySweeperPollInterval

    Sets the max interval at which key-values value dropped from the cache. The delays are dynamically adjusted based on the current size of the cache to stay close the set cacheSize.

    fileSweeperPollInterval

    Sets the max interval at which Segments value closed. The delays are dynamically adjusted based on the current number of open Segments.

    acceleration

    Controls the write speed.

    keySerializer

    Converts keys to Bytes

    valueSerializer

    Converts values to Bytes

    keyOrder

    Sort order for keys

    fileSweeperEC

    ExecutionContext

    returns

    Database instance

  5. final def asInstanceOf[T0]: T0

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  6. def clone(): AnyRef

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  7. final def eq(arg0: AnyRef): Boolean

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  8. def equals(arg0: Any): Boolean

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  9. implicit val functionStore: FunctionStore

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  10. final def getClass(): Class[_]

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  11. def hashCode(): Int

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  12. final def isInstanceOf[T0]: Boolean

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  13. lazy val logger: Logger

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  14. final def ne(arg0: AnyRef): Boolean

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  15. final def notify(): Unit

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  16. final def notifyAll(): Unit

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  17. final def synchronized[T0](arg0: ⇒ T0): T0

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  18. implicit val timeOrder: TimeOrder[Slice[Byte]]

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  19. def toString(): String

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  21. final def wait(arg0: Long): Unit

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  22. final def wait(): Unit

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  1. def finalize(): Unit

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    @Deprecated @deprecated @throws( classOf[java.lang.Throwable] )
    Deprecated

    (Since version ) see corresponding Javadoc for more information.

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