Packages

sealed class Metadata extends Serializable

Metadata is a wrapper over Map[String, Any] that limits the value type to simple ones: Boolean, Long, Double, String, Metadata, Array[Boolean], Array[Long], Array[Double], Array[String], and Array[Metadata]. JSON is used for serialization.

The default constructor is private. User should use either MetadataBuilder or Metadata.fromJson() to create Metadata instances.

Annotations
@Stable()
Source
Metadata.scala
Since

1.3.0

Linear Supertypes
Serializable, Serializable, AnyRef, Any
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Inherited
  1. Metadata
  2. Serializable
  3. Serializable
  4. AnyRef
  5. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new Metadata()

    No-arg constructor for kryo.

    No-arg constructor for kryo.

    Attributes
    protected

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 contains(key: String): Boolean

    Tests whether this Metadata contains a binding for a key.

  7. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  8. def equals(obj: Any): Boolean
    Definition Classes
    Metadata → AnyRef → Any
  9. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  10. def getBoolean(key: String): Boolean

    Gets a Boolean.

  11. def getBooleanArray(key: String): Array[Boolean]

    Gets a Boolean array.

  12. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  13. def getDouble(key: String): Double

    Gets a Double.

  14. def getDoubleArray(key: String): Array[Double]

    Gets a Double array.

  15. def getLong(key: String): Long

    Gets a Long.

  16. def getLongArray(key: String): Array[Long]

    Gets a Long array.

  17. def getMetadata(key: String): Metadata

    Gets a Metadata.

  18. def getMetadataArray(key: String): Array[Metadata]

    Gets a Metadata array.

  19. def getString(key: String): String

    Gets a String.

  20. def getStringArray(key: String): Array[String]

    Gets a String array.

  21. def hashCode(): Int
    Definition Classes
    Metadata → AnyRef → Any
  22. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  23. def json: String

    Converts to its JSON representation.

  24. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  25. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  26. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  27. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  28. def toString(): String
    Definition Classes
    Metadata → AnyRef → Any
  29. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  30. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  31. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()

Inherited from Serializable

Inherited from Serializable

Inherited from AnyRef

Inherited from Any

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