Scala Library
scala.Iterable

trait Projection
[source: scala/Iterable.scala]
trait Projection[+A]
extends Iterable[A]
A non-strict projection of an iterable.
Author
Sean McDirmid
Direct Known Subclasses:
Seq.Projection, Map.Projection, MutableIterable.Projection
Method Summary
def append [B >: A](rest : => Iterable[B]) : Projection[B]
The projection resulting from the concatenation of this projection with the rest projection.
override def filter (p : (A) => Boolean) : Projection[A]
non-strict
override def flatMap [B](f : (A) => Iterable[B]) : Projection[B]
non-strict
def force : Iterable[A]
convert to a copied strict collection
override def map [B](f : (A) => B) : Projection[B]
non-strict
override def projection : Projection[A]
returns a projection that can be used to call non-strict filter, map, and flatMap methods that build projections of the collection.
override def takeWhile (p : (A) => Boolean) : Projection[A]
non-strict
Methods inherited from Iterable
elements (abstract), concat, ++, partition, dropWhile, take, drop, foreach, forall, exists, find, findIndexOf, indexOf, foldLeft, foldRight, /:, :\, reduceLeft, reduceRight, copyToBuffer, sameElements, toList, toSeq, toStream, mkString, mkString, mkString, addString, addString, addString, copyToArray, isEmpty, hasDefiniteSize
Methods inherited from AnyRef
getClass, hashCode, equals, clone, toString, notify, notifyAll, wait, wait, wait, finalize, ==, !=, eq, ne, synchronized
Methods inherited from Any
==, !=, isInstanceOf, asInstanceOf
Method Details
override def projection : Projection[A]
returns a projection that can be used to call non-strict filter, map, and flatMap methods that build projections of the collection.
Overrides
Iterable.projection
def force : Iterable[A]
convert to a copied strict collection
override def filter(p : (A) => Boolean) : Projection[A]
non-strict
Overrides
Iterable.filter
override def map[B](f : (A) => B) : Projection[B]
non-strict
Overrides
Iterable.map
override def flatMap[B](f : (A) => Iterable[B]) : Projection[B]
non-strict
Overrides
Iterable.flatMap
override def takeWhile(p : (A) => Boolean) : Projection[A]
non-strict
Overrides
Iterable.takeWhile
def append[B >: A](rest : => Iterable[B]) : Projection[B]
The projection resulting from the concatenation of this projection with the rest projection.
Parameters
rest - The projection that gets appended to this projection
Scala Library