trait Projection in scala.Seq

scala.Seq

trait Projection

[source: scala/Seq.scala]

trait Projection[+A]: extends Seq[A] with Projection[A]

Direct Known Subclasses:: RandomAccessSeq.Projection, Seq.Projection.MapProjection, Seq.Filter, MutableSeq.Projection

Method Summary
`override def`	filter (p : (A) => Boolean) : Projection[A] non-strict
`override def`	flatMap [B](f : (A) => Iterable[B]) : Projection[B] non-strict
`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.

Methods inherited from Seq
length (abstract), size, isEmpty, concat, last, ++, isDefinedAt, lastIndexOf, take, drop, takeWhile, dropWhile, reverse, contains, slice, subseq, toArray

Methods inherited from Collection
toString, stringPrefix, equalWith

Methods inherited from Iterable
elements (abstract), foreach, forall, exists, find, findIndexOf, indexOf, foldLeft, foldRight, /:, :\, reduceLeft, reduceRight, copyToBuffer, sameElements, toList, mkString, mkString, addString, addString, copyToArray, hasDefiniteSize

Methods inherited from PartialFunction
orElse, andThen

Methods inherited from Function1
apply (abstract), compose

Methods inherited from AnyRef
getClass, hashCode, equals, clone, notify, notifyAll, wait, wait, wait, finalize, ==, !=, eq, ne, synchronized

Methods inherited from Any
==, !=, isInstanceOf, asInstanceOf

Class Summary
`protected class`	MapProjection [B](f : (A) => B) `extends` Projection[B]

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: Seq.projection, Projection.projection

override def map[B](f : (A) => B) : Projection[B]

non-strict

Overrides: Seq.map, Projection.map

override def flatMap[B](f : (A) => Iterable[B]) : Projection[B]

non-strict

Overrides: Seq.flatMap, Projection.flatMap

override def filter(p : (A) => Boolean) : Projection[A]

non-strict

Overrides: Seq.filter, Projection.filter