Validation
Related Docs:
object Validation
| package mapping
Returns Left containing the errors if this is a Failure or a Right containing the value if this is a Success.
Returns None if this is a Failure or a Some containing the value if this is a Success.
Like map, but for partial function.
Like map, but for partial function. If p us not defined for the value, it return a Failure
val p: PartialFunction[Int, String] = { case 5 => "High five!" } Success(5).collect("OOoops")(p) == Success("High five!") Success(7).collect("OOoops")(p) == Failure(Seq("OOoops")) Failure(Seq("error")).collect("OOoops")(p) == Failure(Seq("error"))
the error to return if the p is not defined
the partial function to apply if this is a Success
a Success if this was a Success and p was defined, a Failure otherwise
filter Successful Validation if it does not match the predicate p
filter Successful Validation if it does not match the predicate p
val isFive: Int => Boolean = _ == 5 Success(5).filter("Not five")(isFive) == Success(5) Success(7).filter("Not five")(isFive) == Failure(Seq("Not five")) Failure(Seq("error")).filter("Not five")(isFive) == Failure(Seq("error"))
the error to return if the predicate p is not verified
the predicate to apply if this is a Success
a Success if this was a Success and the predicate matched, a Failure otherwise
filter Successful Validation if it does not match the predicate p
filter Successful Validation if it does not match the predicate p
the predicate to apply if this is a Success
a Success if this was a Success and the predicate matched, a Failure otherwise
Applies invalid if this is a Failure or valid if this is a Success.
Applies invalid if this is a Failure or valid if this is a Success.
the function to apply if this is a Failure
the function to apply if this is a Success
the results of applying the function
Applies the given function f if this is a Success, otherwise returns Unit if this is a Failure
Applies the given function f if this is a Success, otherwise returns Unit if this is a Failure
the function to apply if this is a Success
Unit
Returns the value from this Success or returns t if this is a Failure.
[use case] Builds a new Validation by applying a function to the value of this validation if it's a Success
[use case] Builds a new Validation by applying a function to the value of this validation if it's a Success
val f: Int => Int = _ + 2 Success(5).map(f) == Success(7) Failure(Seq("error")).map(f) == Failure(Seq("error"))
the function to apply if this is a Success
the result of applying the function
Returns this Validation if it is a Success or returns t if it is a Failure.
Applies the given partial function errManager if this is a Failure, otherwise returns this if this is a Success.
Applies the given function errManager if this is a Failure, otherwise returns this if this is a Success.
Creates a non-strict filter of this Validation.
Creates a non-strict filter of this Validation.
Note: the difference between c filter p and c withFilter p is that
the former creates a new vlaidation, whereas the latter only
restricts the domain of subsequent map, flatMap, foreach,
and withFilter operations.
the predicate used to test value.
an object of class WithFilter, which supports
map, flatMap, foreach, and withFilter operations.
All these operations apply to the value of this Validation
which satisfy the predicate p.
Validation[E, A] is the result of a validation, where E is the type of each error, and A is the type of the result if the validation is successful The only two possible implementations are Success[E, A](value: A), or Failure[E, A](errors: Seq[E])