Tristate

An optional value.

A Tristate[A] will either be a wrapped A instance (Present[A]), an explicit lack of an underlying A instance (Absent), or an implicit lack of an underlying A instance (Unspecified).

Linear Supertypes

Serializable, Serializable, Product, Equals, AnyRef, Any

Known Subclasses

Absent, Present, Unspecified

Abstract Value Members

abstract def canEqual(that: Any): Boolean

Definition Classes
Equals
abstract def productArity: Int

Definition Classes
Product
abstract def productElement(n: Int): Any

Definition Classes
Product

Concrete 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
final def cata[B](f: (A) ⇒ B, ifAbsent: ⇒ B, ifUnspecified: ⇒ B): B
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
final def cobind[B](f: (Tristate[A]) ⇒ B): Tristate[B]
final def cojoin: Tristate[Tristate[A]]
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def exists(f: (A) ⇒ Boolean): Boolean
final def filter(f: (A) ⇒ Boolean): Tristate[A]
final def filterNot(f: (A) ⇒ Boolean): Tristate[A]
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def flatMap[B](f: (A) ⇒ Tristate[B]): Tristate[B]
final def forall(f: (A) ⇒ Boolean): Boolean
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
final def getOrElse[B >: A](default: ⇒ B): B
def hashCode(): Int

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

Definition Classes
Any
final def isPresent: Boolean
final def isUnspecified: Boolean
final def map[B](f: (A) ⇒ B): Tristate[B]
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
final def orElse[B >: A](tsa: Tristate[B]): Tristate[B]
def productIterator: Iterator[Any]

Definition Classes
Product
def productPrefix: String

Definition Classes
Product
final def specify[B >: A](default: ⇒ Option[B]): Option[B]

Discharges this Tristate to an Option using the specified default for the Unspecified case.
Discharges this Tristate to an Option using the specified default for the Unspecified case. Present(a) goes to Some(a) and Absent goes to None.
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
final def toList: List[A]
final def toOption: Option[A]
def toString(): String

Definition Classes
AnyRef → Any
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 Tristate | package tristate

sealed abstract class Tristate[+A] extends Product with Serializable

Abstract Value Members

abstract def canEqual(that: Any): Boolean

abstract def productArity: Int

abstract def productElement(n: Int): Any

Concrete Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

final def cata[B](f: (A) ⇒ B, ifAbsent: ⇒ B, ifUnspecified: ⇒ B): B

def clone(): AnyRef

final def cobind[B](f: (Tristate[A]) ⇒ B): Tristate[B]

final def cojoin: Tristate[Tristate[A]]

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

final def exists(f: (A) ⇒ Boolean): Boolean

final def filter(f: (A) ⇒ Boolean): Tristate[A]

final def filterNot(f: (A) ⇒ Boolean): Tristate[A]

def finalize(): Unit

final def flatMap[B](f: (A) ⇒ Tristate[B]): Tristate[B]

final def forall(f: (A) ⇒ Boolean): Boolean

final def getClass(): Class[_]

final def getOrElse[B >: A](default: ⇒ B): B

def hashCode(): Int

final def isAbsent: Boolean

final def isInstanceOf[T0]: Boolean

final def isPresent: Boolean

final def isUnspecified: Boolean

final def map[B](f: (A) ⇒ B): Tristate[B]

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

final def orElse[B >: A](tsa: Tristate[B]): Tristate[B]

def productIterator: Iterator[Any]

def productPrefix: String

final def specify[B >: A](default: ⇒ Option[B]): Option[B]

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

final def toList: List[A]

final def toOption: Option[A]

def toString(): String

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