CachedReverse
An ordering which caches the value of its reverse.
- Source:
- Ordering.scala
Type members
Inherited classlikes
This inner class defines comparison operators available for T.
This inner class defines comparison operators available for T.
It can't extend AnyVal because it is not a top-level class
or a member of a statically accessible object.
- Inherited from:
- Ordering
- Source:
- Ordering.scala
Value members
Inherited methods
Returns an integer whose sign communicates how x compares to y.
Returns an integer whose sign communicates how x compares to y.
The result sign has the following meaning:
- negative if x < y - positive if x > y - zero otherwise (if x == y)
- Inherited from:
- Ordering
- Source:
- Ordering.scala
Return true if x == y in the ordering.
Return true if x == y in the ordering.
- Definition Classes
- Inherited from:
- Ordering
- Source:
- Ordering.scala
Return true if x > y in the ordering.
Return true if x > y in the ordering.
- Definition Classes
- Inherited from:
- Ordering
- Source:
- Ordering.scala
Return true if x >= y in the ordering.
Return true if x >= y in the ordering.
- Definition Classes
- Inherited from:
- Ordering
- Source:
- Ordering.scala
Return true if x < y in the ordering.
Return true if x < y in the ordering.
- Definition Classes
- Inherited from:
- Ordering
- Source:
- Ordering.scala
Return true if x <= y in the ordering.
Return true if x <= y in the ordering.
- Definition Classes
- Inherited from:
- Ordering
- Source:
- Ordering.scala
Return x if x >= y, otherwise y.
Return x if x >= y, otherwise y.
- Inherited from:
- Ordering
- Source:
- Ordering.scala
Return x if x <= y, otherwise y.
Return x if x <= y, otherwise y.
- Inherited from:
- Ordering
- Source:
- Ordering.scala
Given f, a function from U into T, creates an Ordering[U] whose compare function is equivalent to:
Given f, a function from U into T, creates an Ordering[U] whose compare function is equivalent to:
def compare(x:U, y:U) = Ordering[T].compare(f(x), f(y))- Inherited from:
- Ordering
- Source:
- Ordering.scala
Creates an Ordering[T] whose compare function returns the
result of this Ordering's compare function, if it is non-zero,
or else the result of others compare function.
Creates an Ordering[T] whose compare function returns the
result of this Ordering's compare function, if it is non-zero,
or else the result of others compare function.
- Value parameters:
- other
an Ordering to use if this Ordering returns zero
- Example:
case class Pair(a: Int, b: Int) val pairOrdering = Ordering.by[Pair, Int](_.a) .orElse(Ordering.by[Pair, Int](_.b))- Inherited from:
- Ordering
- Source:
- Ordering.scala
Given f, a function from T into S, creates an Ordering[T] whose compare function returns the result of this Ordering's compare function, if it is non-zero, or else a result equivalent to:
Given f, a function from T into S, creates an Ordering[T] whose compare function returns the result of this Ordering's compare function, if it is non-zero, or else a result equivalent to:
Ordering[S].compare(f(x), f(y))This function is equivalent to passing the result of Ordering.by(f)
to orElse.
- Example:
case class Pair(a: Int, b: Int) val pairOrdering = Ordering.by[Pair, Int](_.a) .orElseBy[Int](_.b)- Inherited from:
- Ordering
- Source:
- Ordering.scala
- Inherited from:
- Comparator
- Inherited from:
- Comparator
Returns whether a comparison between x and y is defined, and if so
the result of compare(x, y).
Returns whether a comparison between x and y is defined, and if so
the result of compare(x, y).
- Inherited from:
- Ordering
- Source:
- Ordering.scala
Implicits
Inherited implicits
This implicit method augments T with the comparison operators defined
in scala.math.Ordering.Ops.
This implicit method augments T with the comparison operators defined
in scala.math.Ordering.Ops.
- Inherited from:
- Ordering
- Source:
- Ordering.scala