EmptyLens

com.eventstore.dbclient.proto.shared.Empty$.EmptyLens
implicit class EmptyLens[UpperPB](_l: Lens[UpperPB, Empty]) extends ObjectLens[UpperPB, Empty]

Attributes

Source
Empty.scala
Graph
Supertypes
class ObjectLens[UpperPB, Empty]
trait Lens[UpperPB, Empty]
trait Serializable
class Object
trait Matchable
class Any
Show all

Members list

Value members

Inherited methods

def :=(a: Empty): () => Container

alias to set

alias to set

Attributes

Inherited from:
Lens
Source
Lenses.scala
def compose[B](other: Lens[Empty, B]): Lens[Container, B]

Composes two lenses, this enables nesting.

Composes two lenses, this enables nesting.

If our field of type A has a sub-field of type B, then given a lens for it (other: Lens[A, B]) we can create a single lens from Container to B.

Attributes

Inherited from:
Lens
Source
Lenses.scala
def field[A](getter: Empty => A)(setter: (Empty, A) => Empty): Lens[U, A]

Creates a sub-lens

Creates a sub-lens

Attributes

Inherited from:
ObjectLens
Source
Lenses.scala
def field[A](lens: Lens[Empty, A]): Lens[U, A]

Creates a sub-lens

Creates a sub-lens

Attributes

Inherited from:
ObjectLens
Source
Lenses.scala
override def get(u: UpperPB): Container

get knows how to extract some field of type A from a container

get knows how to extract some field of type A from a container

Attributes

Definition Classes
ObjectLens -> Lens
Inherited from:
ObjectLens
Source
Lenses.scala
def modify(f: Empty => Empty): () => Container

Represent an update operator (like x.y += 1 )

Represent an update operator (like x.y += 1 )

Attributes

Inherited from:
Lens
Source
Lenses.scala
override def set(c: Empty): () => U

Represents an assignment operator.

Represents an assignment operator.

Given a value of type A, sets knows how to transform a container such that a is assigned to the field.

We must have get(set(a)(c)) == a

Attributes

Definition Classes
ObjectLens -> Lens
Inherited from:
ObjectLens
Source
Lenses.scala
def setIfDefined(aOpt: Option[Empty]): () => Container

Optional assignment.

Optional assignment.

Given a Some[A], assign the Some's value to the field. Given None, the container is unchanged.

Attributes

Inherited from:
Lens
Source
Lenses.scala
def update(ms: Lens[Empty, Empty] => () => Empty*): () => U

Attributes

Inherited from:
ObjectLens
Source
Lenses.scala
def zip[B](other: Lens[UpperPB, B]): Lens[Container, (A, B)]

Given two lenses with the same origin, returns a new lens that can mutate both values represented by both lenses through a tuple.

Given two lenses with the same origin, returns a new lens that can mutate both values represented by both lenses through a tuple.

Attributes

Inherited from:
Lens
Source
Lenses.scala