org.rogach.scallop

ScallopOption

abstract class ScallopOption[A] extends AnyRef

A class to hold a reference to not-yet-computed option values.

Basically, this is a lazy option - it batches up all operations, and evaluates the value only as the last resort.

Self Type
ScallopOption[A]
Source
ScallopOption.scala
Linear Supertypes
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  1. ScallopOption
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Instance Constructors

  1. new ScallopOption(nm: String)

    nm

    Name for the option

Type Members

  1. class WithFilter extends AnyRef

Value Members

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

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  3. final def ##(): Int

    Definition Classes
    AnyRef → Any

  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  6. def apply(): A

    Retreive the underlying value.

    Retreive the underlying value. Use only if you are completely sure that there is a value.

  7. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  8. def clone(): AnyRef

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()

  9. def collect[B](pf: PartialFunction[A, B]): ScallopOption[B]

    Returns ScallopOption, that contains the result of applying pf to the value, if this option is non-empty and pf is defined for that value.

    Returns ScallopOption, that contains the result of applying pf to the value, if this option is non-empty and pf is defined for that value. Returns empty ScallopOption otherwise.

    pf

    the partial function

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

    Definition Classes
    AnyRef

  11. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  12. def filter(p: (A) ⇒ Boolean): ScallopOption[A]

    Returns ScallopOption, that contains the value if applying predicate p to this value returned true.

    Returns ScallopOption, that contains the value if applying predicate p to this value returned true. No value otherwise.

    p

    the predicate used for testing

  13. def filterNot(p: (A) ⇒ Boolean): ScallopOption[A]

    Returns ScallopOption, that contains the value if applying predicate p to this value returned false.

    Returns ScallopOption, that contains the value if applying predicate p to this value returned false. No value otherwise.

    p

    the predicate used for testing

  14. def finalize(): Unit

    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()

  15. def flatMap[B](f: (A) ⇒ ScallopOption[B]): ScallopOption[B]

    Returns the result of applying f th this options value if this option is non-empty.

  16. lazy val fn: (String) ⇒ Option[A]

  17. def foreach(f: (A) ⇒ Unit): Unit

    Apply the given procedure f to the option's value, if it is nonempty.

  18. def get: Option[A]

    Retreive the underlying value as an option

  19. final def getClass(): java.lang.Class[_]

    Definition Classes
    AnyRef → Any

  20. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  21. def isDefined: Boolean

    A convenience method to check whether the underlying option is defined.

    A convenience method to check whether the underlying option is defined. Just an alias for opt.get.isDefined.

  22. def isEmpty: Boolean

    A convenience method to check whether the underlying option is empty.

    A convenience method to check whether the underlying option is empty. Just an alias for !opt.isDefined.

  23. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  24. def isSupplied: Boolean

    Tests whether the underlying value was explicitly supplied by user.

  25. def map[B](f: (A) ⇒ B): ScallopOption[B]

    Returns ScallopOption, that contains the result of applying f to this option's value, if this option is non-empty.

    Returns ScallopOption, that contains the result of applying f to this option's value, if this option is non-empty. Returns ScallopOption with no value otherwise.

    f

    the function to apply

  26. def name: String

    Name for the option

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

    Definition Classes
    AnyRef

  28. final def notify(): Unit

    Definition Classes
    AnyRef

  29. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  30. def orElse[B >: A](alternative: ⇒ Option[B]): ScallopOption[B]

    Returns ScallopOption with this value if it is non-empty, or with the value of the alternative option.

    Returns ScallopOption with this value if it is non-empty, or with the value of the alternative option. If it is empty too, the resulting ScallopOption will contain None.

    alternative

    the alternative expression

  31. lazy val supplied: Boolean

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

    Definition Classes
    AnyRef

  33. def toString(): String

    Definition Classes
    ScallopOption → AnyRef → Any

  34. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws()

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

    Definition Classes
    AnyRef
    Annotations
    @throws()

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

    Definition Classes
    AnyRef
    Annotations
    @throws()

  37. def withFilter(p: (A) ⇒ Boolean): WithFilter

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