scala

trait BufferedIterator

[source: scala/BufferedIterator.scala]

trait BufferedIterator[+A]
extends Iterator[A]
Buffered iterators are iterators which allow to inspect the next element without discarding it.
Author
Martin Odersky
SeanMcDirmid
Version
2.0, 16/04/2007
Direct Known Subclasses:
BufferedIterator.Advanced

Method Summary
def advanced : Advanced[A]
override def buffered : BufferedIterator
Returns a buffered iterator from this iterator.
abstract def head : A
Checks what the next available element is.
def headOpt : Option[A]
def readIf [T](f : PartialFunction[A, T]) : Option[T]
iterates over and applies f to the next element if this iterator has a next element that f is defined for.
def readWhile (f : (A) => Boolean) : Boolean
iterates over elements as long as f is true for each element, returns whether anything was read
Methods inherited from Iterator
hasNext (abstract), next (abstract), take, drop, map, append, ++, flatMap, filter, takeWhile, dropWhile, zip, zipWithIndex, foreach, forall, exists, contains, find, foldLeft, foldRight, /:, :\, reduceLeft, reduceRight, counted, duplicate, copyToArray, readInto, readInto, readInto, copyToBuffer, toList, mkString, mkString, addString, toString
Methods inherited from AnyRef
getClass, hashCode, equals, clone, notify, notifyAll, wait, wait, wait, finalize, ==, !=, eq, ne, synchronized
Methods inherited from Any
==, !=, isInstanceOf, asInstanceOf
Method Details
abstract def head : A
Checks what the next available element is.
Returns
the current element

def headOpt : Option[A]

override def buffered : BufferedIterator
Returns a buffered iterator from this iterator.
Overrides
Iterator.buffered

def readIf[T](f : PartialFunction[A, T]) : Option[T]
iterates over and applies f to the next element if this iterator has a next element that f is defined for.

def readWhile(f : (A) => Boolean) : Boolean
iterates over elements as long as f is true for each element, returns whether anything was read

def advanced : Advanced[A]