org.hammerlab.iterator

SimpleBufferedIterator

trait SimpleBufferedIterator[+T] extends BufferedIterator[T]

Interface for implementing BufferedIterators following a common pattern: the hasNext implementation must actually compute the next element (or return a sentinel that implies that one doesn't exist), and should therefore cache that element to serve head and next() calls.

This interface allows subclasses to simply implement an _advance method that returns an Option containing the next element, if one exists, and None otherwise, and it takes care of the rest of the boilerplate.

It also exposes protected clear and postNext methods for Noneing the internal state and responding to next() having been called, respectively.

Linear Supertypes
BufferedIterator[T], Iterator[T], TraversableOnce[T], GenTraversableOnce[T], AnyRef, Any
Known Subclasses
LinesIterator, RoundNumbers
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Inherited
  1. SimpleBufferedIterator
  2. BufferedIterator
  3. Iterator
  4. TraversableOnce
  5. GenTraversableOnce
  6. AnyRef
  7. Any
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Type Members

  1. class GroupedIterator[B >: A] extends AbstractIterator[Seq[B]] with Iterator[Seq[B]]

    Definition Classes
    Iterator

Abstract Value Members

  1. abstract def _advance: Option[T]

    Attributes
    protected

Concrete Value Members

  1. final def !=(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  2. final def !=(arg0: Any): Boolean

    Definition Classes
    Any

  3. final def ##(): Int

    Definition Classes
    AnyRef → Any

  4. def ++[B >: T](that: ⇒ GenTraversableOnce[B]): Iterator[B]

    Definition Classes
    Iterator

  5. def /:[B](z: B)(op: (B, T) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  6. def :\[B](z: B)(op: (T, B) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  7. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  8. final def ==(arg0: Any): Boolean

    Definition Classes
    Any

  9. def addString(b: StringBuilder): StringBuilder

    Definition Classes
    TraversableOnce

  10. def addString(b: StringBuilder, sep: String): StringBuilder

    Definition Classes
    TraversableOnce

  11. def addString(b: StringBuilder, start: String, sep: String, end: String): StringBuilder

    Definition Classes
    TraversableOnce

  12. def aggregate[B](z: B)(seqop: (B, T) ⇒ B, combop: (B, B) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  13. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  14. def buffered: SimpleBufferedIterator.this.type

    Definition Classes
    BufferedIterator → Iterator

  15. final def clear(): Unit

    Attributes
    protected

  16. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  17. def collect[B](pf: PartialFunction[T, B]): Iterator[B]

    Definition Classes
    Iterator
    Annotations
    @migration
    Migration

    (Changed in version 2.8.0) collect has changed. The previous behavior can be reproduced with toSeq.

  18. def collectFirst[B](pf: PartialFunction[T, B]): Option[B]

    Definition Classes
    TraversableOnce

  19. def contains(elem: Any): Boolean

    Definition Classes
    Iterator

  20. def copyToArray[B >: T](xs: Array[B], start: Int, len: Int): Unit

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  21. def copyToArray[B >: T](xs: Array[B]): Unit

    Definition Classes
    TraversableOnce → GenTraversableOnce

  22. def copyToArray[B >: T](xs: Array[B], start: Int): Unit

    Definition Classes
    TraversableOnce → GenTraversableOnce

  23. def copyToBuffer[B >: T](dest: Buffer[B]): Unit

    Definition Classes
    TraversableOnce

  24. def corresponds[B](that: GenTraversableOnce[B])(p: (T, B) ⇒ Boolean): Boolean

    Definition Classes
    Iterator

  25. def count(p: (T) ⇒ Boolean): Int

    Definition Classes
    TraversableOnce → GenTraversableOnce

  26. def drop(n: Int): Iterator[T]

    Definition Classes
    Iterator

  27. def dropWhile(p: (T) ⇒ Boolean): Iterator[T]

    Definition Classes
    Iterator

  28. def duplicate: (Iterator[T], Iterator[T])

    Definition Classes
    Iterator

  29. final def eq(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  30. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  31. def exists(p: (T) ⇒ Boolean): Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  32. def filter(p: (T) ⇒ Boolean): Iterator[T]

    Definition Classes
    Iterator

  33. def filterNot(p: (T) ⇒ Boolean): Iterator[T]

    Definition Classes
    Iterator

  34. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  35. def find(p: (T) ⇒ Boolean): Option[T]

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  36. def flatMap[B](f: (T) ⇒ GenTraversableOnce[B]): Iterator[B]

    Definition Classes
    Iterator

  37. def fold[A1 >: T](z: A1)(op: (A1, A1) ⇒ A1): A1

    Definition Classes
    TraversableOnce → GenTraversableOnce

  38. def foldLeft[B](z: B)(op: (B, T) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  39. def foldRight[B](z: B)(op: (T, B) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  40. def forall(p: (T) ⇒ Boolean): Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  41. def foreach[U](f: (T) ⇒ U): Unit

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  42. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any

  43. def grouped[B >: T](size: Int): GroupedIterator[B]

    Definition Classes
    Iterator

  44. def hasDefiniteSize: Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  45. final def hasNext: Boolean

    Definition Classes
    SimpleBufferedIterator → Iterator

  46. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  47. final def head: T

    Definition Classes
    SimpleBufferedIterator → BufferedIterator

  48. def indexOf[B >: T](elem: B): Int

    Definition Classes
    Iterator

  49. def indexWhere(p: (T) ⇒ Boolean): Int

    Definition Classes
    Iterator

  50. def isEmpty: Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  51. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  52. def isTraversableAgain: Boolean

    Definition Classes
    Iterator → GenTraversableOnce

  53. def length: Int

    Definition Classes
    Iterator

  54. def map[B](f: (T) ⇒ B): Iterator[B]

    Definition Classes
    Iterator

  55. def max[B >: T](implicit cmp: Ordering[B]): T

    Definition Classes
    TraversableOnce → GenTraversableOnce

  56. def maxBy[B](f: (T) ⇒ B)(implicit cmp: Ordering[B]): T

    Definition Classes
    TraversableOnce → GenTraversableOnce

  57. def min[B >: T](implicit cmp: Ordering[B]): T

    Definition Classes
    TraversableOnce → GenTraversableOnce

  58. def minBy[B](f: (T) ⇒ B)(implicit cmp: Ordering[B]): T

    Definition Classes
    TraversableOnce → GenTraversableOnce

  59. def mkString: String

    Definition Classes
    TraversableOnce → GenTraversableOnce

  60. def mkString(sep: String): String

    Definition Classes
    TraversableOnce → GenTraversableOnce

  61. def mkString(start: String, sep: String, end: String): String

    Definition Classes
    TraversableOnce → GenTraversableOnce

  62. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

  63. final def next(): T

    Definition Classes
    SimpleBufferedIterator → Iterator

  64. def nonEmpty: Boolean

    Definition Classes
    TraversableOnce → GenTraversableOnce

  65. final def notify(): Unit

    Definition Classes
    AnyRef

  66. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  67. def padTo[A1 >: T](len: Int, elem: A1): Iterator[A1]

    Definition Classes
    Iterator

  68. def partition(p: (T) ⇒ Boolean): (Iterator[T], Iterator[T])

    Definition Classes
    Iterator

  69. def patch[B >: T](from: Int, patchElems: Iterator[B], replaced: Int): Iterator[B]

    Definition Classes
    Iterator

  70. def postNext(): Unit

    Attributes
    protected

  71. def product[B >: T](implicit num: Numeric[B]): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  72. def reduce[A1 >: T](op: (A1, A1) ⇒ A1): A1

    Definition Classes
    TraversableOnce → GenTraversableOnce

  73. def reduceLeft[B >: T](op: (B, T) ⇒ B): B

    Definition Classes
    TraversableOnce

  74. def reduceLeftOption[B >: T](op: (B, T) ⇒ B): Option[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  75. def reduceOption[A1 >: T](op: (A1, A1) ⇒ A1): Option[A1]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  76. def reduceRight[B >: T](op: (T, B) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  77. def reduceRightOption[B >: T](op: (T, B) ⇒ B): Option[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  78. def reversed: List[T]

    Attributes
    protected[this]
    Definition Classes
    TraversableOnce

  79. def sameElements(that: Iterator[_]): Boolean

    Definition Classes
    Iterator

  80. def scanLeft[B](z: B)(op: (B, T) ⇒ B): Iterator[B]

    Definition Classes
    Iterator

  81. def scanRight[B](z: B)(op: (T, B) ⇒ B): Iterator[B]

    Definition Classes
    Iterator

  82. def seq: Iterator[T]

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  83. def size: Int

    Definition Classes
    TraversableOnce → GenTraversableOnce

  84. def slice(from: Int, until: Int): Iterator[T]

    Definition Classes
    Iterator

  85. def sliding[B >: T](size: Int, step: Int): GroupedIterator[B]

    Definition Classes
    Iterator

  86. def span(p: (T) ⇒ Boolean): (Iterator[T], Iterator[T])

    Definition Classes
    Iterator

  87. def sum[B >: T](implicit num: Numeric[B]): B

    Definition Classes
    TraversableOnce → GenTraversableOnce

  88. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef

  89. def take(n: Int): Iterator[T]

    Definition Classes
    Iterator

  90. def takeWhile(p: (T) ⇒ Boolean): Iterator[T]

    Definition Classes
    Iterator

  91. def to[Col[_]](implicit cbf: CanBuildFrom[Nothing, T, Col[T]]): Col[T]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  92. def toArray[B >: T](implicit arg0: ClassTag[B]): Array[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  93. def toBuffer[B >: T]: Buffer[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  94. def toIndexedSeq: IndexedSeq[T]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  95. def toIterable: Iterable[T]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  96. def toIterator: Iterator[T]

    Definition Classes
    Iterator → GenTraversableOnce

  97. def toList: List[T]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  98. def toMap[T, U](implicit ev: <:<[T, (T, U)]): Map[T, U]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  99. def toSeq: Seq[T]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  100. def toSet[B >: T]: Set[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  101. def toStream: Stream[T]

    Definition Classes
    Iterator → GenTraversableOnce

  102. def toString(): String

    Definition Classes
    Iterator → AnyRef → Any

  103. def toTraversable: Traversable[T]

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce

  104. def toVector: Vector[T]

    Definition Classes
    TraversableOnce → GenTraversableOnce

  105. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  106. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  107. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  108. def withFilter(p: (T) ⇒ Boolean): Iterator[T]

    Definition Classes
    Iterator

  109. def zip[B](that: Iterator[B]): Iterator[(T, B)]

    Definition Classes
    Iterator

  110. def zipAll[B, A1 >: T, B1 >: B](that: Iterator[B], thisElem: A1, thatElem: B1): Iterator[(A1, B1)]

    Definition Classes
    Iterator

  111. def zipWithIndex: Iterator[(T, Int)]

    Definition Classes
    Iterator

Deprecated Value Members

  1. def /:\[A1 >: T](z: A1)(op: (A1, A1) ⇒ A1): A1

    Definition Classes
    GenTraversableOnce
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) use fold instead

Inherited from BufferedIterator[T]

Inherited from Iterator[T]

Inherited from TraversableOnce[T]

Inherited from GenTraversableOnce[T]

Inherited from AnyRef

Inherited from Any

Ungrouped