trait
Lens[T, U] extends AnyRef
Abstract Value Members
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abstract
def
get(t: T): U
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abstract
def
set(t: T, u: U): T
Concrete Value Members
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final
def
!=(arg0: Any): Boolean
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final
def
##(): Int
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final
def
==(arg0: Any): Boolean
-
def
apply(t: T): U
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final
def
asInstanceOf[T0]: T0
-
def
clone(): AnyRef
-
-
-
def
finalize(): Unit
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final
def
getClass(): Class[_]
-
def
hashCode(): Int
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final
def
isInstanceOf[T0]: Boolean
-
-
final
def
notify(): Unit
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final
def
notifyAll(): Unit
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final
def
synchronized[T0](arg0: ⇒ T0): T0
-
def
toString(): String
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final
def
wait(): Unit
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final
def
wait(arg0: Long, arg1: Int): Unit
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final
def
wait(arg0: Long): Unit
A Lens defines a functional way of handling getters/setters. They're useful for extending transformations on a part of a case class to the whole case class by updating that one component