Class/Object

org.apache.spark.sql.types

MapType

Related Docs: object MapType | package types

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case class MapType(keyType: DataType, valueType: DataType, valueContainsNull: Boolean) extends DataType with Product with Serializable

The data type for Maps. Keys in a map are not allowed to have null values.

Please use DataTypes.createMapType() to create a specific instance.

keyType

The data type of map keys.

valueType

The data type of map values.

valueContainsNull

Indicates if map values have null values.

Annotations
@Stable()
Source
MapType.scala
Linear Supertypes
Serializable, Serializable, Product, Equals, DataType, AbstractDataType, AnyRef, Any
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. MapType
  2. Serializable
  3. Serializable
  4. Product
  5. Equals
  6. DataType
  7. AbstractDataType
  8. AnyRef
  9. Any
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  2. Show All
Visibility
  1. Public
  2. All

Instance Constructors

  1. new MapType()

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    No-arg constructor for kryo.

  2. new MapType(keyType: DataType, valueType: DataType, valueContainsNull: Boolean)

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    keyType

    The data type of map keys.

    valueType

    The data type of map values.

    valueContainsNull

    Indicates if map values have null values.

Value Members

  1. final def !=(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

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    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any
  5. def catalogString: String

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    String representation for the type saved in external catalogs.

    String representation for the type saved in external catalogs.

    Definition Classes
    MapTypeDataType
  6. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  7. def defaultSize: Int

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    The default size of a value of the MapType is (the default size of the key type + the default size of the value type).

    The default size of a value of the MapType is (the default size of the key type + the default size of the value type). We assume that there is only 1 element on average in a map. See SPARK-18853.

    Definition Classes
    MapTypeDataType
  8. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef
  9. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  10. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any
  11. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any
  12. def json: String

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    The compact JSON representation of this data type.

    The compact JSON representation of this data type.

    Definition Classes
    DataType
  13. val keyType: DataType

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    The data type of map keys.

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

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    Definition Classes
    AnyRef
  15. final def notify(): Unit

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    Definition Classes
    AnyRef
  16. final def notifyAll(): Unit

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    Definition Classes
    AnyRef
  17. def prettyJson: String

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    The pretty (i.e.

    The pretty (i.e. indented) JSON representation of this data type.

    Definition Classes
    DataType
  18. def simpleString: String

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    Readable string representation for the type.

    Readable string representation for the type.

    Definition Classes
    MapTypeDataType → AbstractDataType
  19. def sql: String

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    Definition Classes
    MapTypeDataType
  20. final def synchronized[T0](arg0: ⇒ T0): T0

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    Definition Classes
    AnyRef
  21. def typeName: String

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    Name of the type used in JSON serialization.

    Name of the type used in JSON serialization.

    Definition Classes
    DataType
  22. val valueContainsNull: Boolean

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    Indicates if map values have null values.

  23. val valueType: DataType

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    The data type of map values.

  24. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  25. final def wait(arg0: Long, arg1: Int): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  26. final def wait(arg0: Long): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Inherited from Serializable

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from DataType

Inherited from AbstractDataType

Inherited from AnyRef

Inherited from Any

Ungrouped