spray.json.lenses

LensImpl

abstract class LensImpl[M[_]] extends Lens[M]

This implements most of the methods of Lens. Implementors of a new type of lens must implement retr for the read side of the lens and updated for the update side of the lens.

Self Type
LensImpl[M]
Linear Supertypes
Lens[M], ReadLens[M], UpdateLens, AnyRef, Any
Ordering
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Inherited
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  1. LensImpl
  2. Lens
  3. ReadLens
  4. UpdateLens
  5. AnyRef
  6. Any
Visibility
  1. Public
  2. All

Instance Constructors

  1. new LensImpl()(implicit ops: Ops[M])

Abstract Value Members

  1. abstract def retr: (JsValue) ⇒ Validated[M[JsValue]]

    Given a parent JsValue, tries to extract the child value.

    Given a parent JsValue, tries to extract the child value.

    returns

    Right(value) if the lens read succeeds. Left(error) if the lens read fails.

    Definition Classes
    ReadLens

  2. abstract def updated(f: (SafeJsValue) ⇒ SafeJsValue)(parent: JsValue): SafeJsValue

    Applies function f on the child of the parent denoted by this UpdateLens and returns a Right of the parent with the child element updated.

    Applies function f on the child of the parent denoted by this UpdateLens and returns a Right of the parent with the child element updated.

    The value passed to f may be Left(e) if the child could not be found in which case particular operations may still succeed. Function f may return Left(error) in case the operation fails.

    updated returns Left(error) if the update operation or any of any intermediate lens fails.

    Definition Classes
    UpdateLens

Concrete Value Members

  1. def !(op: (SafeJsValue) ⇒ SafeJsValue): Update

    Definition Classes
    LensImpl → UpdateLens

  2. final def !=(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  4. final def ##(): Int

    Definition Classes
    AnyRef → Any

  5. def /[M2[_], R[_]](next: Lens[M2])(implicit ev: Join[M2, M, R]): Lens[R]

    A shortcut for the combine lens which combines two lenses.

    A shortcut for the combine lens which combines two lenses.

    Definition Classes
    LensImpl → Lens

  6. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  8. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  9. def clone(): AnyRef

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

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

    Definition Classes
    AnyRef

  11. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  12. def finalize(): Unit

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

  13. def get[T](p: JsValue)(implicit arg0: Reader[T]): M[T]

    Given a parent JsValue extracts and converts a JsValue into a value of type T or throws an exception.

    Given a parent JsValue extracts and converts a JsValue into a value of type T or throws an exception.

    Definition Classes
    LensImpl → ReadLens

  14. final def getClass(): java.lang.Class[_]

    Definition Classes
    AnyRef → Any

  15. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  16. def is[U](f: (U) ⇒ Boolean)(implicit arg0: Reader[U]): (JsValue) ⇒ Boolean

    Lifts a predicate for a converted value for this lens up to the parent level.

    Lifts a predicate for a converted value for this lens up to the parent level. The returned predicate will return false for values which fail to read.

    Definition Classes
    LensImpl → ReadLens

  17. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

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

    Definition Classes
    AnyRef

  19. final def notify(): Unit

    Definition Classes
    AnyRef

  20. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  21. implicit val ops: Ops[M]

    Definition Classes
    LensImpl → Lens

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

    Definition Classes
    AnyRef

  23. def toSeq: Lens[Seq]

    Definition Classes
    LensImpl → Lens

  24. def toString(): String

    Definition Classes
    AnyRef → Any

  25. def tryGet[T](p: JsValue)(implicit arg0: Reader[T]): Validated[M[T]]

    Given a parent JsValue extracts and tries to convert the JsValue into a value of type T

    Given a parent JsValue extracts and tries to convert the JsValue into a value of type T

    Definition Classes
    LensImpl → ReadLens

  26. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()

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

    Definition Classes
    AnyRef
    Annotations
    @throws()

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

    Definition Classes
    AnyRef
    Annotations
    @throws()

Inherited from Lens[M]

Inherited from ReadLens[M]

Inherited from UpdateLens

Inherited from AnyRef

Inherited from Any