scala.math

PartialOrdering

trait PartialOrdering[T] extends Equiv[T]

A trait for representing partial orderings. It is important to distinguish between a type that has a partial order and a representation of partial ordering on some type. This trait is for representing the latter.

A partial ordering is a binary relation on a type T that is also an equivalence relation on values of type T. This relation is exposed as the lteq method of the PartialOrdering trait. This relation must be:

Self Type
PartialOrdering[T]
Source
PartialOrdering.scala
Version

1.0, 2008-04-0-3

Since

2.7

Linear Supertypes
Equiv[T], Serializable, java.io.Serializable, AnyRef, Any
Known Subclasses
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Inherited
  1. PartialOrdering
  2. Equiv
  3. Serializable
  4. Serializable
  5. AnyRef
  6. Any
Implicitly
  1. by StringAdd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Abstract Value Members

  1. abstract def lteq(x: T, y: T): Boolean

    Returns true iff x comes before y in the ordering.

  2. abstract def tryCompare(x: T, y: T): Option[Int]

    Result of comparing x with operand y.

    Result of comparing x with operand y. Returns None if operands are not comparable. If operands are comparable, returns Some(r) where

    • r < 0 iff x < y
    • r == 0 iff x == y
    • r > 0 iff x > y

Concrete 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 PartialOrdering[T] to StringAdd[PartialOrdering[T]] performed by method StringAdd in scala.Predef.
    Definition Classes
    StringAdd
  5. def ->[B](y: B): (PartialOrdering[T], B)

    Implicit information
    This member is added by an implicit conversion from PartialOrdering[T] to ArrowAssoc[PartialOrdering[T]] 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 asInstanceOf[T0]: T0

    Definition Classes
    Any
  9. def clone(): AnyRef

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

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

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

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

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

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

    Definition Classes
    AnyRef → Any
  16. def equiv(x: T, y: T): Boolean

    Returns true iff x is equivalent to y in the ordering.

    Returns true iff x is equivalent to y in the ordering.

    Definition Classes
    PartialOrderingEquiv
  17. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws()
  18. 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 PartialOrdering[T] to StringFormat[PartialOrdering[T]] performed by method StringFormat in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  19. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  20. def gt(x: T, y: T): Boolean

    Returns true iff y comes before x in the ordering and is not the same as x.

  21. def gteq(x: T, y: T): Boolean

    Returns true iff y comes before x in the ordering.

  22. def hashCode(): Int

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

    Definition Classes
    Any
  24. def lt(x: T, y: T): Boolean

    Returns true iff x comes before y in the ordering and is not the same as y.

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

    Definition Classes
    AnyRef
  26. final def notify(): Unit

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

    Definition Classes
    AnyRef
  28. def reverse: PartialOrdering[T]

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

    Definition Classes
    AnyRef
  30. def toString(): String

    Definition Classes
    AnyRef → Any
  31. final def wait(): Unit

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

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

    Definition Classes
    AnyRef
    Annotations
    @throws()
  34. def [B](y: B): (PartialOrdering[T], B)

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

Inherited from Equiv[T]

Inherited from Serializable

Inherited from java.io.Serializable

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion StringAdd from PartialOrdering[T] to StringAdd[PartialOrdering[T]]

Inherited by implicit conversion StringFormat from PartialOrdering[T] to StringFormat[PartialOrdering[T]]

Inherited by implicit conversion Ensuring from PartialOrdering[T] to Ensuring[PartialOrdering[T]]

Inherited by implicit conversion ArrowAssoc from PartialOrdering[T] to ArrowAssoc[PartialOrdering[T]]

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