scala

Enumeration

abstract class Enumeration extends Serializable

Defines a finite set of values specific to the enumeration. Typically these values enumerate all possible forms something can take and provide a lightweight alternative to case classes.

Each call to a Value method adds a new unique value to the enumeration. To be accessible, these values are usually defined as val members of the evaluation.

All values in an enumeration share a common, unique type defined as the Value type member of the enumeration (Value selected on the stable identifier path of the enumeration instance).

Self Type
Enumeration
Annotations
@SerialVersionUID()
Source
Enumeration.scala
Example:
  1. object Main extends App {
    
      object WeekDay extends Enumeration {
        type WeekDay = Value
        val Mon, Tue, Wed, Thu, Fri, Sat, Sun = Value
      }
      import WeekDay._
    
      def isWorkingDay(d: WeekDay) = ! (d == Sat || d == Sun)
    
      WeekDay.values filter isWorkingDay foreach println
    }
    // output:
    // Mon
    // Tue
    // Wed
    // Thu
    // Fri
Linear Supertypes
Serializable, java.io.Serializable, AnyRef, Any
Known Subclasses
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Ordering
  1. Alphabetic
  2. By inheritance
Inherited
  1. Enumeration
  2. Serializable
  3. Serializable
  4. AnyRef
  5. Any
Implicitly
  1. by StringAdd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new Enumeration()

  2. new Enumeration(initial: Int)

    initial

    The initial value from which to count the integers that identifies values at run-time.

Type Members

  1. class Val extends Value with Serializable

    A class implementing the scala.Enumeration.Value type.

  2. abstract class Value extends Ordered[Value] with Serializable

    The type of the enumerated values.

  3. class ValueSet extends AbstractSet[Value] with SortedSet[Value] with SortedSetLike[Value, ValueSet] with Serializable

    A class for sets of values.

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. def +(other: String): String

    Implicit information
    This member is added by an implicit conversion from Enumeration to StringAdd[Enumeration] performed by method StringAdd in scala.Predef.
    Definition Classes
    StringAdd
  5. def ->[B](y: B): (Enumeration, B)

    Implicit information
    This member is added by an implicit conversion from Enumeration to ArrowAssoc[Enumeration] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  6. final def ==(arg0: AnyRef): Boolean

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

    Definition Classes
    Any
  8. final def Value(i: Int, name: String): Value

    Creates a fresh value, part of this enumeration, called name and identified by the integer i.

    Creates a fresh value, part of this enumeration, called name and identified by the integer i.

    i

    An integer that identifies this value at run-time. It must be unique amongst all values of the enumeration.

    name

    A human-readable name for that value.

    returns

    Fresh value with the provided identifier i and name name.

    Attributes
    protected
  9. final def Value(name: String): Value

    Creates a fresh value, part of this enumeration, called name.

    Creates a fresh value, part of this enumeration, called name.

    name

    A human-readable name for that value.

    returns

    Fresh value called name.

    Attributes
    protected
  10. final def Value(i: Int): Value

    Creates a fresh value, part of this enumeration, identified by the integer i.

    Creates a fresh value, part of this enumeration, identified by the integer i.

    i

    An integer that identifies this value at run-time. It must be unique amongst all values of the enumeration.

    returns

    Fresh value identified by i.

    Attributes
    protected
  11. final def Value: Value

    Creates a fresh value, part of this enumeration.

    Creates a fresh value, part of this enumeration.

    Attributes
    protected
  12. object ValueOrdering extends Ordering[Value]

    An ordering by id for values of this set

  13. object ValueSet extends Serializable

    A factory object for value sets

  14. final def apply(x: Int): Value

    The value of this enumeration with given id x

  15. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  16. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()
  17. def ensuring(cond: (Enumeration) ⇒ Boolean, msg: ⇒ Any): Enumeration

    Implicit information
    This member is added by an implicit conversion from Enumeration to Ensuring[Enumeration] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  18. def ensuring(cond: (Enumeration) ⇒ Boolean): Enumeration

    Implicit information
    This member is added by an implicit conversion from Enumeration to Ensuring[Enumeration] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  19. def ensuring(cond: Boolean, msg: ⇒ Any): Enumeration

    Implicit information
    This member is added by an implicit conversion from Enumeration to Ensuring[Enumeration] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  20. def ensuring(cond: Boolean): Enumeration

    Implicit information
    This member is added by an implicit conversion from Enumeration to Ensuring[Enumeration] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  21. final def eq(arg0: AnyRef): Boolean

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

    Definition Classes
    AnyRef → Any
  23. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()
  24. def formatted(fmtstr: String): String

    Returns string formatted according to given format string.

    Returns string formatted according to given format string. Format strings are as for String.format (@see java.lang.String.format).

    Implicit information
    This member is added by an implicit conversion from Enumeration to StringFormat[Enumeration] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  25. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  26. def hashCode(): Int

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

    Definition Classes
    Any
  28. final def maxId: Int

    The one higher than the highest integer amongst those used to identify values in this enumeration.

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

    Definition Classes
    AnyRef
  30. var nextId: Int

    The integer to use to identify the next created value.

    The integer to use to identify the next created value.

    Attributes
    protected
  31. var nextName: Iterator[String]

    The string to use to name the next created value.

    The string to use to name the next created value.

    Attributes
    protected
  32. final def notify(): Unit

    Definition Classes
    AnyRef
  33. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  34. def readResolve(): AnyRef

    Attributes
    protected
  35. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  36. def toString(): String

    The name of this enumeration.

    The name of this enumeration.

    Definition Classes
    Enumeration → AnyRef → Any
  37. def values: ValueSet

    The values of this enumeration as a set.

  38. final def wait(): Unit

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

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

    Definition Classes
    AnyRef
    Annotations
    @throws()
  41. final def withName(s: String): Value

    Return a Value from this Enumeration whose name matches the argument s.

    Return a Value from this Enumeration whose name matches the argument s. The names are determined automatically via reflection.

    s

    an Enumeration name

    returns

    the Value of this Enumeration if its name matches s

    Exceptions thrown
    NoSuchElementException

    if no Value with a matching name is in this Enumeration

  42. def [B](y: B): (Enumeration, B)

    Implicit information
    This member is added by an implicit conversion from Enumeration to ArrowAssoc[Enumeration] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Inherited from Serializable

Inherited from java.io.Serializable

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion StringAdd from Enumeration to StringAdd[Enumeration]

Inherited by implicit conversion StringFormat from Enumeration to StringFormat[Enumeration]

Inherited by implicit conversion Ensuring from Enumeration to Ensuring[Enumeration]

Inherited by implicit conversion ArrowAssoc from Enumeration to ArrowAssoc[Enumeration]

Ungrouped