Object

scala.jdk

OptionConverters

Related Doc: package jdk

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object OptionConverters

This object provides extension methods that convert between Scala Option and Java Optional types.

It differs from the JVM version as in it does not provide any conversions for the Optional primitive type wrappers which are available in the JDK but not in Scala-JS or Scala-Native.

Scala Option is extended with a toJava method that creates a corresponding Optional.

Java Optional is extended with a toScala method.

Example usage:

import scala.jdk.OptionConverters._
val a = Option("example").toJava      // Creates java.util.Optional[String] containing "example"
val b = (None: Option[String]).toJava // Creates an empty java.util.Optional[String]
val c = a.toScala                     // Back to Option("example")
val d = b.toScala                     // Back to None typed as Option[String]
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Type Members

  1. implicit final class RichOption[A] extends AnyVal

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    Provides conversions from Scala Option to Java Optional types

  2. implicit final class RichOptional[A] extends AnyVal

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    Provides conversions from Java Optional to Scala Option and specialized Optional types

Value Members

  1. final def !=(arg0: Any): Boolean

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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. final def asInstanceOf[T0]: T0

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  5. def clone(): AnyRef

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  6. final def eq(arg0: AnyRef): Boolean

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  7. def equals(arg0: Any): Boolean

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  8. def finalize(): Unit

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  9. final def getClass(): Class[_]

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  10. def hashCode(): Int

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  11. final def isInstanceOf[T0]: Boolean

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  12. final def ne(arg0: AnyRef): Boolean

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  13. final def notify(): Unit

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  14. final def notifyAll(): Unit

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

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  16. def toString(): String

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  17. final def wait(): Unit

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

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  19. final def wait(arg0: Long): Unit

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