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Scala example source code file (PreciseSplitter.scala)
The PreciseSplitter.scala Scala example source code/* __ *\ ** ________ ___ / / ___ Scala API ** ** / __/ __// _ | / / / _ | (c) 2003-2013, LAMP/EPFL ** ** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ ** ** /____/\___/_/ |_/____/_/ | | ** ** |/ ** \* */ package scala package collection.parallel import scala.collection.Seq /** A precise splitter (or a precise split iterator) can be split into arbitrary number of splitters * that traverse disjoint subsets of arbitrary sizes. * * Implementors might want to override the parameterless `split` method for efficiency. * * @tparam T type of the elements this splitter traverses * * @since 2.9 * @author Aleksandar Prokopec */ trait PreciseSplitter[+T] extends Splitter[T] { /** Splits the splitter into disjunct views. * * This overloaded version of the `split` method is specific to precise splitters. * It returns a sequence of splitters, each iterating some subset of the * elements in this splitter. The sizes of the subsplitters in the partition is equal to * the size in the corresponding argument, as long as there are enough elements in this * splitter to split it that way. * * If there aren't enough elements, a zero element splitter is appended for each additional argument. * If there are additional elements, an additional splitter is appended at the end to compensate. * * For example, say we have a splitter `ps` with 100 elements. Invoking: * {{{ * ps.split(50, 25, 25, 10, 5) * }}} * will return a sequence of five splitters, last two views being empty. On the other hand, calling: * {{{ * ps.split(50, 40) * }}} * will return a sequence of three splitters, last of them containing ten elements. * * '''Note:''' this method actually invalidates the current splitter. * * Unlike the case with `split` found in splitters, views returned by this method can be empty. * * @param sizes the sizes used to split this split iterator into iterators that traverse disjunct subsets * @return a sequence of disjunct subsequence iterators of this parallel iterator */ def psplit(sizes: Int*): Seq[PreciseSplitter[T]] def split: Seq[PreciseSplitter[T]] } Other Scala source code examplesHere is a short list of links related to this Scala PreciseSplitter.scala source code file: |
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