implicit final class ExtraRichOrdering[T] extends AnyRef
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- new ExtraRichOrdering(ord1: Ordering[T])
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final
def
!=(arg0: Any): Boolean
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final
def
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final
def
==(arg0: Any): Boolean
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final
def
asInstanceOf[T0]: T0
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def
clone(): AnyRef
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def
eq(arg0: AnyRef): Boolean
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def
equals(arg0: Any): Boolean
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def
finalize(): Unit
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final
def
getClass(): Class[_]
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def
hashCode(): Int
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def
isInstanceOf[T0]: Boolean
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def
ne(arg0: AnyRef): Boolean
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def
notify(): Unit
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def
notifyAll(): Unit
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def
synchronized[T0](arg0: ⇒ T0): T0
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def
thenBy[S](f: (T) ⇒ S)(implicit arg0: Ordering[S]): Ordering[T]
Returns a new Ordering which compares elements by applying a function (
f
) to them if this Ordering returned0
when comparing them.Returns a new Ordering which compares elements by applying a function (
f
) to them if this Ordering returned0
when comparing them.This method is an alias of thenOrderingBy, intended to be used when chaining several calls in order to reduce verbosity, as in the following example:
case class IntTuple(a: Int, b: Int, c: Int, d: Int) object IntTuple { val ordering: Ordering[IntTuple] = Ordering.by[IntTuple, Int](_.a) .thenBy(_.b) .thenBy(_.c) .thenBy(_.d) }
- S
the return type of
f
- f
a function mapping elements to some value to be compared
- returns
a new Ordering which compares elements by applying a function to them if this Ordering returned
0
when comparing them
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- @inline()
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def
thenOrderingBy[S](f: (T) ⇒ S)(implicit ord2: Ordering[S]): Ordering[T]
Returns a new Ordering which compares elements by applying a function (
f
) to them if this Ordering returned0
when comparing them.Returns a new Ordering which compares elements by applying a function (
f
) to them if this Ordering returned0
when comparing them.This method is intended to be used to build more complex Orderings from other Orderings, as in the following example:
case class PlayingCard(rank: Rank, suit: Suit) object PlayingCard { val rankOnlyOrdering: Ordering[PlayingCard] = Ordering.by(_.rank) val fullOrdering: Ordering[PlayingCard] = rankOnlyOrdering.thenOrderingBy(_.suit) }
- S
the return type of
f
- f
a function mapping elements to some value to be compared
- returns
a new Ordering which compares elements by applying a function to them if this Ordering returned
0
when comparing them
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def
toString(): String
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final
def
wait(): Unit
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final
def
wait(arg0: Long, arg1: Int): Unit
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final
def
wait(arg0: Long): Unit
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