Attempt

Represents the result of an action, which may be the result itself or an Invalid (error).

An unsafe operation may be attempted using Attempt.safe(unsafeCall) for instance:

val r: Attempt[String] = for {
  a <- Attempt.safe { throw new RuntimeException("oh noes!") }
  b <- Attempt.ok("should be ok!")
} yield b

will result in an Attempt that holds an Invalid.Err with the RuntimeException in it.

This class does not – and will not – auto-magically catch exceptions for you in map/flatMap.

Since: 1.2

Linear Supertypes

Serializable, Serializable, Product, Equals, AnyRef, Any

Instance Constructors

new Attempt(run: \/[Invalid, A])

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
def flatMap[B](f: (A) ⇒ Attempt[B]): Attempt[B]
def fold[B](l: ⇒ (Invalid) ⇒ B, r: (A) ⇒ B): B

Catamorphism.
Catamorphism. Run the first given function if left, otherwise, the second given function.

Since
1.3
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
def lift[B](f: (\/[Invalid, A]) ⇒ \/[Invalid, B]): Attempt[B]
def map[B](f: (A) ⇒ B): Attempt[B]
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
val run: \/[Invalid, A]
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toOption: Option[A]
def toOr: \/[Invalid, A]
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Docs: object Attempt | package kadai

case class Attempt[+A](run: \/[Invalid, A]) extends Product with Serializable

Instance Constructors

new Attempt(run: \/[Invalid, A])

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

final def eq(arg0: AnyRef): Boolean

def finalize(): Unit

def flatMap[B](f: (A) ⇒ Attempt[B]): Attempt[B]

def fold[B](l: ⇒ (Invalid) ⇒ B, r: (A) ⇒ B): B

final def getClass(): Class[_]

final def isInstanceOf[T0]: Boolean

def lift[B](f: (\/[Invalid, A]) ⇒ \/[Invalid, B]): Attempt[B]

def map[B](f: (A) ⇒ B): Attempt[B]

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

val run: \/[Invalid, A]

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

def toOption: Option[A]

def toOr: \/[Invalid, A]

final def wait(): Unit

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

final def wait(arg0: Long): Unit

Inherited from Serializable

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

Ungrouped