sealed trait Value extends AnyRef

A FaunaDB value.

Reference: Fauna Data Types

Overview

Value is an algebraic data type that represents the value of possible FaunaDB query responses. While it is possible to extract data out of a Value object using pattern matching, the faunadb.values.Field lets you create more complex and reusable data extractors.

// Simple, adhoc extraction:
value("data", "name").to[String].get

// Using a reusable Field:
val NameField = Field("data", "name").to[String]
value(NameField).get

Extraction can be composed:

val refAndNameAndAge = for {
  ref <- value("ref").to[RefV]
  name <- value("data", "name").to[String]
  age <- value("data", "age").to[Int]
} yield (ref, name, age)

refAndNameAndAge.get

// or

val RefAndNameAndAgeField = Field.zip(
  Field("ref").to[RefV],
  Field("data", "name").to[String],
  Field("data", "age").to[Int])

value(RefAndNameAndAgeField).get

If a value may be an array, or may contain an array, the array's elements may be cast using collect:

value("data", "tags").collect(Field.to[String]).get

// or

val TagsField = Field("data", "tags").collect(Field.to[String])
value(TagsField).get
Annotations
@JsonDeserialize()
Linear Supertypes
AnyRef, Any
Known Subclasses
ArrayV, BooleanV, BytesV, DateV, DoubleV, FalseV, LongV, NullV, NullV, ObjectV, QueryV, RefV, ScalarValue, SetRefV, StringV, TimeV, TrueV
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Inherited
  1. Value
  2. AnyRef
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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 apply(p: FieldPath, ps: FieldPath*): Result[Value]

    Extract the sub-value at the specified path.

  5. final def apply[T](field: Field[T]): Result[T]

    Extract a value with the provided field.

  6. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  7. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native() @HotSpotIntrinsicCandidate()
  8. final def collect[T](field: Field[T]): Result[Seq[T]]

    Extract the elements of an ArrayV using the provided field.

  9. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  10. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  11. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  12. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  13. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  14. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  15. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  16. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @HotSpotIntrinsicCandidate()
  17. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  18. final def to[T](implicit arg0: Decoder[T]): Result[T]

    Cast the value to T, using a Decoder.

  19. def toString(): String
    Definition Classes
    AnyRef → Any
  20. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  21. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  22. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

Deprecated Value Members

  1. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] ) @Deprecated
    Deprecated

Inherited from AnyRef

Inherited from Any

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