org.apache.mxnet.io

PrefetchingIter

Related Doc: package io

class PrefetchingIter extends DataIter

Base class for prefetching iterators. Takes one or more DataIters and combine them with prefetching.

Linear Supertypes
DataIter, Iterator[DataBatch], TraversableOnce[DataBatch], GenTraversableOnce[DataBatch], AnyRef, Any
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Inherited
  1. PrefetchingIter
  2. DataIter
  3. Iterator
  4. TraversableOnce
  5. GenTraversableOnce
  6. AnyRef
  7. Any
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  1. Public
  2. All

Instance Constructors

  1. new PrefetchingIter(iters: IndexedSeq[DataIter], dataNames: IndexedSeq[Map[String, String]] = null, labelNames: IndexedSeq[Map[String, String]] = null)

    iters

    list of DataIters

    dataNames
    labelNames

Type Members

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

    Definition Classes
    Iterator

Value Members

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

    Definition Classes
    AnyRef → Any
  2. final def ##(): Int

    Definition Classes
    AnyRef → Any
  3. def ++[B >: DataBatch](that: ⇒ GenTraversableOnce[B]): Iterator[B]

    Definition Classes
    Iterator
  4. def /:[B](z: B)(op: (B, DataBatch) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce
  5. def :\[B](z: B)(op: (DataBatch, B) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce
  6. final def ==(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any
  7. def addString(b: StringBuilder): StringBuilder

    Definition Classes
    TraversableOnce
  8. def addString(b: StringBuilder, sep: String): StringBuilder

    Definition Classes
    TraversableOnce
  9. def addString(b: StringBuilder, start: String, sep: String, end: String): StringBuilder

    Definition Classes
    TraversableOnce
  10. def aggregate[B](z: ⇒ B)(seqop: (B, DataBatch) ⇒ B, combop: (B, B) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce
  11. final def asInstanceOf[T0]: T0

    Definition Classes
    Any
  12. def batchSize: Int

    Definition Classes
    PrefetchingIterDataIter
  13. def buffered: BufferedIterator[DataBatch]

    Definition Classes
    Iterator
  14. def clone(): AnyRef

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  15. def collect[B](pf: PartialFunction[DataBatch, 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.

  16. def collectFirst[B](pf: PartialFunction[DataBatch, B]): Option[B]

    Definition Classes
    TraversableOnce
  17. def contains(elem: Any): Boolean

    Definition Classes
    Iterator
  18. def copyToArray[B >: DataBatch](xs: Array[B], start: Int, len: Int): Unit

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  19. def copyToArray[B >: DataBatch](xs: Array[B]): Unit

    Definition Classes
    TraversableOnce → GenTraversableOnce
  20. def copyToArray[B >: DataBatch](xs: Array[B], start: Int): Unit

    Definition Classes
    TraversableOnce → GenTraversableOnce
  21. def copyToBuffer[B >: DataBatch](dest: Buffer[B]): Unit

    Definition Classes
    TraversableOnce
  22. def corresponds[B](that: GenTraversableOnce[B])(p: (DataBatch, B) ⇒ Boolean): Boolean

    Definition Classes
    Iterator
  23. def count(p: (DataBatch) ⇒ Boolean): Int

    Definition Classes
    TraversableOnce → GenTraversableOnce
  24. def defaultBucketKey: AnyRef

    Definition Classes
    DataIter
  25. def dispose(): Unit

    Stop all its internal prefetching threads.

    Stop all its internal prefetching threads. The object shall never be used after it is disposed.

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

    Definition Classes
    Iterator
  27. def dropWhile(p: (DataBatch) ⇒ Boolean): Iterator[DataBatch]

    Definition Classes
    Iterator
  28. def duplicate: (Iterator[DataBatch], Iterator[DataBatch])

    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: (DataBatch) ⇒ Boolean): Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  32. def filter(p: (DataBatch) ⇒ Boolean): Iterator[DataBatch]

    Definition Classes
    Iterator
  33. def filterNot(p: (DataBatch) ⇒ Boolean): Iterator[DataBatch]

    Definition Classes
    Iterator
  34. def finalize(): Unit

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  35. def find(p: (DataBatch) ⇒ Boolean): Option[DataBatch]

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  36. def flatMap[B](f: (DataBatch) ⇒ GenTraversableOnce[B]): Iterator[B]

    Definition Classes
    Iterator
  37. def fold[A1 >: DataBatch](z: A1)(op: (A1, A1) ⇒ A1): A1

    Definition Classes
    TraversableOnce → GenTraversableOnce
  38. def foldLeft[B](z: B)(op: (B, DataBatch) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce
  39. def foldRight[B](z: B)(op: (DataBatch, B) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce
  40. def forall(p: (DataBatch) ⇒ Boolean): Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  41. def foreach[U](f: (DataBatch) ⇒ U): Unit

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  42. final def getClass(): Class[_]

    Definition Classes
    AnyRef → Any
  43. def getData(): IndexedSeq[NDArray]

    get data of current batch

    get data of current batch

    returns

    the data of current batch

    Definition Classes
    PrefetchingIterDataIter
  44. def getIndex(): IndexedSeq[Long]

    the index of current batch

    the index of current batch

    returns

    Definition Classes
    PrefetchingIterDataIter
  45. def getLabel(): IndexedSeq[NDArray]

    Get label of current batch

    Get label of current batch

    returns

    the label of current batch

    Definition Classes
    PrefetchingIterDataIter
  46. def getPad(): Int

    get the number of padding examples in current batch

    get the number of padding examples in current batch

    returns

    number of padding examples in current batch

    Definition Classes
    PrefetchingIterDataIter
  47. def grouped[B >: DataBatch](size: Int): GroupedIterator[B]

    Definition Classes
    Iterator
  48. def hasDefiniteSize: Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  49. def hasNext: Boolean

    Definition Classes
    PrefetchingIter → Iterator
  50. def hashCode(): Int

    Definition Classes
    AnyRef → Any
  51. def indexOf[B >: DataBatch](elem: B): Int

    Definition Classes
    Iterator
  52. def indexWhere(p: (DataBatch) ⇒ Boolean): Int

    Definition Classes
    Iterator
  53. def isEmpty: Boolean

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  54. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any
  55. def isTraversableAgain: Boolean

    Definition Classes
    Iterator → GenTraversableOnce
  56. def length: Int

    Definition Classes
    Iterator
  57. def map[B](f: (DataBatch) ⇒ B): Iterator[B]

    Definition Classes
    Iterator
  58. def max[B >: DataBatch](implicit cmp: Ordering[B]): DataBatch

    Definition Classes
    TraversableOnce → GenTraversableOnce
  59. def maxBy[B](f: (DataBatch) ⇒ B)(implicit cmp: Ordering[B]): DataBatch

    Definition Classes
    TraversableOnce → GenTraversableOnce
  60. def min[B >: DataBatch](implicit cmp: Ordering[B]): DataBatch

    Definition Classes
    TraversableOnce → GenTraversableOnce
  61. def minBy[B](f: (DataBatch) ⇒ B)(implicit cmp: Ordering[B]): DataBatch

    Definition Classes
    TraversableOnce → GenTraversableOnce
  62. def mkString: String

    Definition Classes
    TraversableOnce → GenTraversableOnce
  63. def mkString(sep: String): String

    Definition Classes
    TraversableOnce → GenTraversableOnce
  64. def mkString(start: String, sep: String, end: String): String

    Definition Classes
    TraversableOnce → GenTraversableOnce
  65. final def ne(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  66. def next(): DataBatch

    get next data batch from iterator

    get next data batch from iterator

    returns

    Definition Classes
    PrefetchingIterDataIter → Iterator
  67. def nonEmpty: Boolean

    Definition Classes
    TraversableOnce → GenTraversableOnce
  68. final def notify(): Unit

    Definition Classes
    AnyRef
  69. final def notifyAll(): Unit

    Definition Classes
    AnyRef
  70. def padTo[A1 >: DataBatch](len: Int, elem: A1): Iterator[A1]

    Definition Classes
    Iterator
  71. def partition(p: (DataBatch) ⇒ Boolean): (Iterator[DataBatch], Iterator[DataBatch])

    Definition Classes
    Iterator
  72. def patch[B >: DataBatch](from: Int, patchElems: Iterator[B], replaced: Int): Iterator[B]

    Definition Classes
    Iterator
  73. def prefetchFunc(i: Int): Runnable

  74. def product[B >: DataBatch](implicit num: Numeric[B]): B

    Definition Classes
    TraversableOnce → GenTraversableOnce
  75. def provideDataDesc: IndexedSeq[DataDesc]

    Definition Classes
    PrefetchingIterDataIter
  76. def provideLabelDesc: IndexedSeq[DataDesc]

    Definition Classes
    PrefetchingIterDataIter
  77. def reduce[A1 >: DataBatch](op: (A1, A1) ⇒ A1): A1

    Definition Classes
    TraversableOnce → GenTraversableOnce
  78. def reduceLeft[B >: DataBatch](op: (B, DataBatch) ⇒ B): B

    Definition Classes
    TraversableOnce
  79. def reduceLeftOption[B >: DataBatch](op: (B, DataBatch) ⇒ B): Option[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  80. def reduceOption[A1 >: DataBatch](op: (A1, A1) ⇒ A1): Option[A1]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  81. def reduceRight[B >: DataBatch](op: (DataBatch, B) ⇒ B): B

    Definition Classes
    TraversableOnce → GenTraversableOnce
  82. def reduceRightOption[B >: DataBatch](op: (DataBatch, B) ⇒ B): Option[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  83. def reset(): Unit

    reset the iterator

    reset the iterator

    Definition Classes
    PrefetchingIterDataIter
  84. def reversed: List[DataBatch]

    Attributes
    protected[this]
    Definition Classes
    TraversableOnce
  85. def sameElements(that: Iterator[_]): Boolean

    Definition Classes
    Iterator
  86. def scanLeft[B](z: B)(op: (B, DataBatch) ⇒ B): Iterator[B]

    Definition Classes
    Iterator
  87. def scanRight[B](z: B)(op: (DataBatch, B) ⇒ B): Iterator[B]

    Definition Classes
    Iterator
  88. def seq: Iterator[DataBatch]

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  89. def size: Int

    Definition Classes
    TraversableOnce → GenTraversableOnce
  90. def slice(from: Int, until: Int): Iterator[DataBatch]

    Definition Classes
    Iterator
  91. def sliding[B >: DataBatch](size: Int, step: Int): GroupedIterator[B]

    Definition Classes
    Iterator
  92. def span(p: (DataBatch) ⇒ Boolean): (Iterator[DataBatch], Iterator[DataBatch])

    Definition Classes
    Iterator
  93. def sum[B >: DataBatch](implicit num: Numeric[B]): B

    Definition Classes
    TraversableOnce → GenTraversableOnce
  94. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  95. def take(n: Int): Iterator[DataBatch]

    Definition Classes
    Iterator
  96. def takeWhile(p: (DataBatch) ⇒ Boolean): Iterator[DataBatch]

    Definition Classes
    Iterator
  97. def to[Col[_]](implicit cbf: CanBuildFrom[Nothing, DataBatch, Col[DataBatch]]): Col[DataBatch]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  98. def toArray[B >: DataBatch](implicit arg0: ClassTag[B]): Array[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  99. def toBuffer[B >: DataBatch]: Buffer[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  100. def toIndexedSeq: IndexedSeq[DataBatch]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  101. def toIterable: Iterable[DataBatch]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  102. def toIterator: Iterator[DataBatch]

    Definition Classes
    Iterator → GenTraversableOnce
  103. def toList: List[DataBatch]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  104. def toMap[T, U](implicit ev: <:<[DataBatch, (T, U)]): Map[T, U]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  105. def toSeq: Seq[DataBatch]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  106. def toSet[B >: DataBatch]: Set[B]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  107. def toStream: Stream[DataBatch]

    Definition Classes
    Iterator → GenTraversableOnce
  108. def toString(): String

    Definition Classes
    Iterator → AnyRef → Any
  109. def toTraversable: Traversable[DataBatch]

    Definition Classes
    Iterator → TraversableOnce → GenTraversableOnce
  110. def toVector: Vector[DataBatch]

    Definition Classes
    TraversableOnce → GenTraversableOnce
  111. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  112. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  113. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  114. def withFilter(p: (DataBatch) ⇒ Boolean): Iterator[DataBatch]

    Definition Classes
    Iterator
  115. def zip[B](that: Iterator[B]): Iterator[(DataBatch, B)]

    Definition Classes
    Iterator
  116. def zipAll[B, A1 >: DataBatch, B1 >: B](that: Iterator[B], thisElem: A1, thatElem: B1): Iterator[(A1, B1)]

    Definition Classes
    Iterator
  117. def zipWithIndex: Iterator[(DataBatch, Int)]

    Definition Classes
    Iterator

Deprecated Value Members

  1. def provideData: ListMap[String, Shape]

    Definition Classes
    PrefetchingIterDataIter
    Annotations
    @deprecated
    Deprecated
  2. def provideLabel: ListMap[String, Shape]

    Definition Classes
    PrefetchingIterDataIter
    Annotations
    @deprecated
    Deprecated

Inherited from DataIter

Inherited from Iterator[DataBatch]

Inherited from TraversableOnce[DataBatch]

Inherited from GenTraversableOnce[DataBatch]

Inherited from AnyRef

Inherited from Any

Ungrouped