sealed abstract class Option[A] extends Iterable[A]
This class represents optional values. Instances of Option
are either instances of case class Some
or it is case
object None
.
- Source
- JavaAPI.scala
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Concrete Value Members
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final
def
!=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
final
def
##(): Int
- Definition Classes
- AnyRef → Any
- def +(other: String): String
- def ->[B](y: B): (Option[A], B)
-
final
def
==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
final
def
asInstanceOf[T0]: T0
- Definition Classes
- Any
-
def
canEqual(that: Any): Boolean
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Equals
-
def
clone(): AnyRef
- Attributes
- protected[java.lang]
- Definition Classes
- AnyRef
- Annotations
- @native() @HotSpotIntrinsicCandidate() @throws( ... )
-
final
def
collect[B](pf: PartialFunction[A, B]): scala.Option[B]
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Option
- Annotations
- @inline()
-
final
def
contains[A1 >: A](elem: A1): Boolean
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Option
- def ensuring(cond: (Option[A]) ⇒ Boolean, msg: ⇒ Any): Option[A]
- def ensuring(cond: (Option[A]) ⇒ Boolean): Option[A]
- def ensuring(cond: Boolean, msg: ⇒ Any): Option[A]
- def ensuring(cond: Boolean): Option[A]
-
final
def
eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
-
def
equals(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
-
final
def
exists(p: (A) ⇒ Boolean): Boolean
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Option
- Annotations
- @inline()
-
final
def
filter(p: (A) ⇒ Boolean): scala.Option[A]
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Option
- Annotations
- @inline()
-
final
def
filterNot(p: (A) ⇒ Boolean): scala.Option[A]
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Option
- Annotations
- @inline()
-
final
def
flatMap[B](f: (A) ⇒ scala.Option[B]): scala.Option[B]
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Option
- Annotations
- @inline()
-
def
flatten[B](implicit ev: <:<[A, scala.Option[B]]): scala.Option[B]
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Option
-
final
def
fold[B](ifEmpty: ⇒ B)(f: (A) ⇒ B): B
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Option
- Annotations
- @inline()
-
def
forEach(arg0: Consumer[_ >: A]): Unit
- Definition Classes
- Iterable
-
final
def
forall(p: (A) ⇒ Boolean): Boolean
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Option
- Annotations
- @inline()
-
final
def
foreach[U](f: (A) ⇒ U): Unit
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Option
- Annotations
- @inline()
- def formatted(fmtstr: String): String
-
final
def
getClass(): Class[_]
- Definition Classes
- AnyRef → Any
- Annotations
- @native() @HotSpotIntrinsicCandidate()
-
def
hashCode(): Int
- Definition Classes
- AnyRef → Any
- Annotations
- @native() @HotSpotIntrinsicCandidate()
- def isDefined: Boolean
-
final
def
isInstanceOf[T0]: Boolean
- Definition Classes
- Any
-
def
iterator(): Iterator[A]
- Definition Classes
- Option → Iterable
-
final
def
map[B](f: (A) ⇒ B): scala.Option[B]
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Option
- Annotations
- @inline()
-
final
def
ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
-
final
def
nonEmpty: Boolean
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Option
-
final
def
notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native() @HotSpotIntrinsicCandidate()
-
final
def
notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native() @HotSpotIntrinsicCandidate()
-
final
def
orElse[B >: A](alternative: ⇒ scala.Option[B]): scala.Option[B]
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Option
- Annotations
- @inline()
-
final
def
orNull[A1 >: A](implicit ev: <:<[Null, A1]): A1
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Option
- Annotations
- @inline()
-
def
productArity: Int
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Product
-
def
productElement(n: Int): Any
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Product
-
def
productIterator: Iterator[Any]
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Product
-
def
productPrefix: String
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Product
-
def
spliterator(): Spliterator[A]
- Definition Classes
- Iterable
-
final
def
synchronized[T0](arg0: ⇒ T0): T0
- Definition Classes
- AnyRef
-
final
def
toLeft[X](right: ⇒ X): Either[A, X]
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Option
- Annotations
- @inline()
-
def
toList: List[A]
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Option
-
final
def
toRight[X](left: ⇒ X): Either[X, A]
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Option
- Annotations
- @inline()
-
def
toString(): String
- Definition Classes
- AnyRef → Any
-
final
def
wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws( ... )
-
final
def
wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @native() @throws( ... )
-
final
def
wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws( ... )
-
final
def
withFilter(p: (A) ⇒ Boolean): WithFilter
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Definition Classes
- Option
- Annotations
- @inline()
- def →[B](y: B): (Option[A], B)
Shadowed Implicit Value Members
-
def
get: A
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(option: scala.Option[A]).get
- Definition Classes
- Option
-
final
def
getOrElse[B >: A](default: ⇒ B): B
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(option: scala.Option[A]).getOrElse(default)
- Definition Classes
- Option
- Annotations
- @inline()
-
def
isDefined: Boolean
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(option: scala.Option[A]).isDefined
- Definition Classes
- Option
-
def
isEmpty: Boolean
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(option: scala.Option[A]).isEmpty
- Definition Classes
- Option
-
def
iterator: Iterator[A]
- Implicit
- This member is added by an implicit conversion from Option[A] to scala.Option[A] performed by method java2ScalaOption in akka.japi.Option.
- Shadowing
- This implicitly inherited member is shadowed by one or more members in this class.
To access this member you can use a type ascription:(option: scala.Option[A]).iterator
- Definition Classes
- Option