Packages

final class UnsafeMapData extends MapData with Externalizable with KryoSerializable

An Unsafe implementation of Map which is backed by raw memory instead of Java objects.

Currently we just use 2 UnsafeArrayData to represent UnsafeMapData, with extra 8 bytes at head to indicate the number of bytes of the unsafe key array. [unsafe key array numBytes] [unsafe key array] [unsafe value array]

Note that, user is responsible to guarantee that the key array does not have duplicated elements, otherwise the behavior is undefined.

Linear Supertypes
KryoSerializable, Externalizable, MapData, Serializable, Serializable, AnyRef, Any
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Inherited
  1. UnsafeMapData
  2. KryoSerializable
  3. Externalizable
  4. MapData
  5. Serializable
  6. Serializable
  7. AnyRef
  8. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new UnsafeMapData()

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  6. def copy(): UnsafeMapData
    Definition Classes
    UnsafeMapData → MapData
  7. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  8. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  9. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  10. def foreach(keyType: DataType, valueType: DataType, f: (Any, Any) ⇒ Unit): Unit
    Definition Classes
    MapData
  11. def getBaseObject(): AnyRef
  12. def getBaseOffset(): Long
  13. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  14. def getSizeInBytes(): Int
  15. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  16. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  17. def keyArray(): UnsafeArrayData
    Definition Classes
    UnsafeMapData → MapData
  18. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  19. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  20. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  21. def numElements(): Int
    Definition Classes
    UnsafeMapData → MapData
  22. def pointTo(baseObject: Any, baseOffset: Long, sizeInBytes: Int): Unit

    Update this UnsafeMapData to point to different backing data.

    Update this UnsafeMapData to point to different backing data.

    baseObject

    the base object

    baseOffset

    the offset within the base object

    sizeInBytes

    the size of this map's backing data, in bytes

  23. def read(kryo: Kryo, input: Input): Unit
    Definition Classes
    UnsafeMapData → KryoSerializable
  24. def readExternal(in: ObjectInput): Unit
    Definition Classes
    UnsafeMapData → Externalizable
  25. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  26. def toString(): String
    Definition Classes
    AnyRef → Any
  27. def valueArray(): UnsafeArrayData
    Definition Classes
    UnsafeMapData → MapData
  28. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  29. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  30. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  31. def write(kryo: Kryo, output: Output): Unit
    Definition Classes
    UnsafeMapData → KryoSerializable
  32. def writeExternal(out: ObjectOutput): Unit
    Definition Classes
    UnsafeMapData → Externalizable
  33. def writeTo(buffer: ByteBuffer): Unit
  34. def writeToMemory(target: Any, targetOffset: Long): Unit

Inherited from KryoSerializable

Inherited from Externalizable

Inherited from MapData

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

Ungrouped