Class/Object

scodec.codecs

Discriminated

Related Docs: object Discriminated | package codecs

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final case class Discriminated[X, D](codec: Codec[D], framing: CodecTransformation) extends Product with Serializable

Wrapper class that indicates subtypes of X are discriminated by type D using the supplied Codec[D].

For example, an implicit Discriminated value can be defined in the companion of a sealed trait, along with implicit Discriminator values in each subtype companion. Given such implicits, a codec for the trait can be automatically derived using Codec[X].

Contains an optional codec transformation, which is applied to every component codec before encoding/decoding. This allows common structure, e.g., size based framing, to be specified in one location.

For example, if each discriminated subtype is prefixed by a size field, the framing could be specified as: 

Discriminated[X, D](uint, new CodecTransformation {
  def apply[Z](c: Codec[Z]) = variableSizeBytes(uint16, c)
})
X

type that can be discriminated by discriminator values of type D

D

value type that discriminates Y in context of X from other types using discriminators of D for some type Y

Source
Discriminated.scala
Linear Supertypes
Serializable, Serializable, Product, Equals, AnyRef, Any
Type Hierarchy
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Inherited
  1. Discriminated
  2. Serializable
  3. Serializable
  4. Product
  5. Equals
  6. AnyRef
  7. Any
Implicitly
  1. by ValueEnrichedWithTuplingSupport
  2. by any2stringadd
  3. by StringFormat
  4. by Ensuring
  5. by ArrowAssoc
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new Discriminated(codec: Codec[D])

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  2. new Discriminated(codec: Codec[D], framing: CodecTransformation)

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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. def +(other: String): String

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    Implicit information
    This member is added by an implicit conversion from Discriminated[X, D] to any2stringadd[Discriminated[X, D]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd

  4. def ->[B](y: B): (Discriminated[X, D], B)

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    Implicit information
    This member is added by an implicit conversion from Discriminated[X, D] to ArrowAssoc[Discriminated[X, D]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()

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

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    Definition Classes
    AnyRef → Any

  6. val a: Discriminated[X, D]

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    Implicit information
    This member is added by an implicit conversion from Discriminated[X, D] to ValueEnrichedWithTuplingSupport[Discriminated[X, D]] performed by method ValueEnrichedWithTuplingSupport in scodec.codecs.
    Definition Classes
    ValueEnrichedWithTuplingSupport

  7. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any

  8. def bind[Y <: X](discriminator: D)(implicit ev: =:!=[Y, X]): Discriminator[X, Y, D]

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    Binds the discriminator value D to type Y.

  9. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  10. val codec: Codec[D]

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  11. def ensuring(cond: (Discriminated[X, D]) ⇒ Boolean, msg: ⇒ Any): Discriminated[X, D]

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    Implicit information
    This member is added by an implicit conversion from Discriminated[X, D] to Ensuring[Discriminated[X, D]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  12. def ensuring(cond: (Discriminated[X, D]) ⇒ Boolean): Discriminated[X, D]

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    Implicit information
    This member is added by an implicit conversion from Discriminated[X, D] to Ensuring[Discriminated[X, D]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  13. def ensuring(cond: Boolean, msg: ⇒ Any): Discriminated[X, D]

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    Implicit information
    This member is added by an implicit conversion from Discriminated[X, D] to Ensuring[Discriminated[X, D]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

  14. def ensuring(cond: Boolean): Discriminated[X, D]

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    Implicit information
    This member is added by an implicit conversion from Discriminated[X, D] to Ensuring[Discriminated[X, D]] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring

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

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    Definition Classes
    AnyRef

  16. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  17. def formatted(fmtstr: String): String

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    Implicit information
    This member is added by an implicit conversion from Discriminated[X, D] to StringFormat[Discriminated[X, D]] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()

  18. val framing: CodecTransformation

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

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    Definition Classes
    AnyRef → Any

  20. final def isInstanceOf[T0]: Boolean

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    Definition Classes
    Any

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

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    Definition Classes
    AnyRef

  22. final def notify(): Unit

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    Definition Classes
    AnyRef

  23. final def notifyAll(): Unit

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    Definition Classes
    AnyRef

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

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    Definition Classes
    AnyRef

  25. final def wait(): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  26. final def wait(arg0: Long, arg1: Int): Unit

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

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    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  28. def ~[B](b: B): (Discriminated[X, D], B)

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    Implicit information
    This member is added by an implicit conversion from Discriminated[X, D] to ValueEnrichedWithTuplingSupport[Discriminated[X, D]] performed by method ValueEnrichedWithTuplingSupport in scodec.codecs.
    Definition Classes
    ValueEnrichedWithTuplingSupport

  29. def →[B](y: B): (Discriminated[X, D], B)

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    Implicit information
    This member is added by an implicit conversion from Discriminated[X, D] to ArrowAssoc[Discriminated[X, D]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Inherited from Serializable

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion ValueEnrichedWithTuplingSupport from Discriminated[X, D] to ValueEnrichedWithTuplingSupport[Discriminated[X, D]]

Inherited by implicit conversion any2stringadd from Discriminated[X, D] to any2stringadd[Discriminated[X, D]]

Inherited by implicit conversion StringFormat from Discriminated[X, D] to StringFormat[Discriminated[X, D]]

Inherited by implicit conversion Ensuring from Discriminated[X, D] to Ensuring[Discriminated[X, D]]

Inherited by implicit conversion ArrowAssoc from Discriminated[X, D] to ArrowAssoc[Discriminated[X, D]]

Ungrouped