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]
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 any2stringadd
  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: Any): Boolean

    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

    Definition Classes
    AnyRef → Any
  3. def +(other: String): String

    Implicit information
    This member is added by an implicit conversion from PartialOrdering[T] to any2stringadd[PartialOrdering[T]] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. 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()
  5. final def ==(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  6. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  7. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  8. 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
  9. 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
  10. 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
  11. 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
  12. final def eq(arg0: AnyRef): Boolean

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

    Definition Classes
    AnyRef → Any
  14. 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
  15. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  16. 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()
  17. final def getClass(): Class[_]

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

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

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

    Returns true iff y comes before x in the ordering.

  20. def hashCode(): Int

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

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

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

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

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

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

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

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

    Definition Classes
    AnyRef
  28. def toString(): String

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

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

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  32. 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 any2stringadd from PartialOrdering[T] to any2stringadd[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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