Packages

trait Applicative[M[_]] extends Functor[M]

Simple implementation of an Applicative type-class. There are many choices for the canonical second operation (join, sequence, joinWith, ap), all equivalent. For a Functor modeling concurrent computations with failure, like Future, combining results with join can save a lot of time over combining with flatMap. (Given two operations, if the second fails before the first completes, one can fail the entire computation right then. With flatMap, one would have to wait for the first operation to complete before failing it.)

Laws Applicatives must follow: map(apply(x))(f) == apply(f(x)) join(apply(x), apply(y)) == apply((x, y)) (sequence and joinWith specialize join - they should behave appropriately)

Annotations
@implicitNotFound()
Linear Supertypes
Functor[M], AnyRef, Any
Known Subclasses
AbstractApplicative, AbstractMonad, AggregatorApplicative, FoldApplicative, IdentityMonad, Monad, ScanApplicative, Error, ReaderM, StateFMonad
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. Applicative
  2. Functor
  3. AnyRef
  4. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. Protected

Abstract Value Members

  1. abstract def apply[T](v: T): M[T]
  2. abstract def join[T, U](mt: M[T], mu: M[U]): M[(T, U)]
  3. abstract def map[T, U](m: M[T])(fn: (T) => U): M[U]
    Definition Classes
    Functor

Concrete 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 asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  8. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  9. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  10. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  11. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  12. def join[T1, T2, T3, T4, T5](m1: M[T1], m2: M[T2], m3: M[T3], m4: M[T4], m5: M[T5]): M[(T1, T2, T3, T4, T5)]
  13. def join[T1, T2, T3, T4](m1: M[T1], m2: M[T2], m3: M[T3], m4: M[T4]): M[(T1, T2, T3, T4)]
  14. def join[T1, T2, T3](m1: M[T1], m2: M[T2], m3: M[T3]): M[(T1, T2, T3)]
  15. def joinWith[T, U, V](mt: M[T], mu: M[U])(fn: (T, U) => V): M[V]
  16. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  17. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  18. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  19. def sequence[T](ms: Seq[M[T]]): M[Seq[T]]
  20. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  21. def toString(): String
    Definition Classes
    AnyRef → Any
  22. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  23. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  24. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

Inherited from Functor[M]

Inherited from AnyRef

Inherited from Any

Ungrouped