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resource

ManagedTraversable

trait ManagedTraversable[+B, A] extends Traversable[B]

This trait provides a means to ensure traversable access to items inside a resource, while ensuring that the resource is opened/closed appropriately before/after the traversal. This class can be dangerous because it always tries to open and close the resource for every call to foreach. This is practically ever method call on a Traversable besides the "view" method.

Linear Supertypes
Traversable[B], GenTraversable[B], GenericTraversableTemplate[B, Traversable], TraversableLike[B, Traversable[B]], GenTraversableLike[B, Traversable[B]], Parallelizable[B, ParIterable[B]], TraversableOnce[B], GenTraversableOnce[B], FilterMonadic[B, Traversable[B]], HasNewBuilder[B, Traversable[B]], AnyRef, Any
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Inherited
  1. ManagedTraversable
  2. Traversable
  3. GenTraversable
  4. GenericTraversableTemplate
  5. TraversableLike
  6. GenTraversableLike
  7. Parallelizable
  8. TraversableOnce
  9. GenTraversableOnce
  10. FilterMonadic
  11. HasNewBuilder
  12. AnyRef
  13. Any
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Visibility
  1. Public
  2. All

Type Members

  1. type Self = Traversable[B]
    Attributes
    protected[this]
    Definition Classes
    TraversableLike
  2. class WithFilter extends FilterMonadic[A, Repr]
    Definition Classes
    TraversableLike

Abstract Value Members

  1. abstract def internalForeach[U](resource: A, f: (B) ⇒ U): Unit

    This method gives us an iterator over items in a resource.

    This method gives us an iterator over items in a resource.

    Attributes
    protected
  2. abstract val resource: ManagedResource[A]

    The resource we plan to traverse through

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. def ++[B >: B, That](that: GenTraversableOnce[B])(implicit bf: CanBuildFrom[Traversable[B], B, That]): That
    Definition Classes
    TraversableLike → GenTraversableLike
  4. def ++:[B >: B, That](that: Traversable[B])(implicit bf: CanBuildFrom[Traversable[B], B, That]): That
    Definition Classes
    TraversableLike
  5. def ++:[B >: B, That](that: TraversableOnce[B])(implicit bf: CanBuildFrom[Traversable[B], B, That]): That
    Definition Classes
    TraversableLike
  6. def /:[B](z: B)(op: (B, B) ⇒ B): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  7. def :\[B](z: B)(op: (B, B) ⇒ B): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  8. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → 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, B) ⇒ B, combop: (B, B) ⇒ B): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  13. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  14. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  15. def collect[B, That](pf: PartialFunction[B, B])(implicit bf: CanBuildFrom[Traversable[B], B, That]): That
    Definition Classes
    TraversableLike → GenTraversableLike
  16. def collectFirst[B](pf: PartialFunction[B, B]): Option[B]
    Definition Classes
    TraversableOnce
  17. def companion: GenericCompanion[Traversable]
    Definition Classes
    Traversable → GenTraversable → GenericTraversableTemplate
  18. def copyToArray[B >: B](xs: Array[B], start: Int, len: Int): Unit
    Definition Classes
    TraversableLike → TraversableOnce → GenTraversableOnce
  19. def copyToArray[B >: B](xs: Array[B]): Unit
    Definition Classes
    TraversableOnce → GenTraversableOnce
  20. def copyToArray[B >: B](xs: Array[B], start: Int): Unit
    Definition Classes
    TraversableOnce → GenTraversableOnce
  21. def copyToBuffer[B >: B](dest: Buffer[B]): Unit
    Definition Classes
    TraversableOnce
  22. def count(p: (B) ⇒ Boolean): Int
    Definition Classes
    TraversableOnce → GenTraversableOnce
  23. def drop(n: Int): Traversable[B]
    Definition Classes
    TraversableLike → GenTraversableLike
  24. def dropWhile(p: (B) ⇒ Boolean): Traversable[B]
    Definition Classes
    TraversableLike → GenTraversableLike
  25. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  26. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  27. def exists(p: (B) ⇒ Boolean): Boolean
    Definition Classes
    TraversableLike → TraversableOnce → GenTraversableOnce
  28. def filter(p: (B) ⇒ Boolean): Traversable[B]
    Definition Classes
    TraversableLike → GenTraversableLike
  29. def filterNot(p: (B) ⇒ Boolean): Traversable[B]
    Definition Classes
    TraversableLike → GenTraversableLike
  30. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  31. def find(p: (B) ⇒ Boolean): Option[B]
    Definition Classes
    TraversableLike → TraversableOnce → GenTraversableOnce
  32. def flatMap[B, That](f: (B) ⇒ GenTraversableOnce[B])(implicit bf: CanBuildFrom[Traversable[B], B, That]): That
    Definition Classes
    TraversableLike → GenTraversableLike → FilterMonadic
  33. def flatten[B](implicit asTraversable: (B) ⇒ GenTraversableOnce[B]): Traversable[B]
    Definition Classes
    GenericTraversableTemplate
  34. def fold[A1 >: B](z: A1)(op: (A1, A1) ⇒ A1): A1
    Definition Classes
    TraversableOnce → GenTraversableOnce
  35. def foldLeft[B](z: B)(op: (B, B) ⇒ B): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  36. def foldRight[B](z: B)(op: (B, B) ⇒ B): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  37. def forall(p: (B) ⇒ Boolean): Boolean
    Definition Classes
    TraversableLike → TraversableOnce → GenTraversableOnce
  38. def foreach[U](f: (B) ⇒ U): Unit

    Executes a given function against all items in the resource.

    Executes a given function against all items in the resource. The resource is opened/closed during the call to this method.

    Definition Classes
    ManagedTraversable → GenericTraversableTemplate → TraversableLike → GenTraversableLike → TraversableOnce → GenTraversableOnce → FilterMonadic
  39. def genericBuilder[B]: Builder[B, Traversable[B]]
    Definition Classes
    GenericTraversableTemplate
  40. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
  41. def groupBy[K](f: (B) ⇒ K): Map[K, Traversable[B]]
    Definition Classes
    TraversableLike → GenTraversableLike
  42. def handleErrorsDuringTraversal(ex: List[Throwable]): Unit

    This method is called if an exception happens during traversal of the collection.

    This method is called if an exception happens during traversal of the collection. We allow subclasses to override this to change the default behavior of resource related errors on traversal.

  43. def hasDefiniteSize: Boolean
    Definition Classes
    TraversableLike → TraversableOnce → GenTraversableOnce
  44. def hashCode(): Int
    Definition Classes
    AnyRef → Any
  45. def head: B
    Definition Classes
    TraversableLike → GenTraversableLike
  46. def headOption: Option[B]
    Definition Classes
    TraversableLike → GenTraversableLike
  47. def ignoreError(error: Exception): Boolean

    This method determines if the error can be ignored and traversable continues

  48. def init: Traversable[B]
    Definition Classes
    TraversableLike → GenTraversableLike
  49. def inits: Iterator[Traversable[B]]
    Definition Classes
    TraversableLike
  50. def isEmpty: Boolean
    Definition Classes
    TraversableLike → TraversableOnce → GenTraversableOnce
  51. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  52. final def isTraversableAgain: Boolean
    Definition Classes
    TraversableLike → GenTraversableLike → GenTraversableOnce
  53. def last: B
    Definition Classes
    TraversableLike → GenTraversableLike
  54. def lastOption: Option[B]
    Definition Classes
    TraversableLike → GenTraversableLike
  55. def map[B, That](f: (B) ⇒ B)(implicit bf: CanBuildFrom[Traversable[B], B, That]): That
    Definition Classes
    TraversableLike → GenTraversableLike → FilterMonadic
  56. def max[B >: B](implicit cmp: Ordering[B]): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  57. def maxBy[B](f: (B) ⇒ B)(implicit cmp: Ordering[B]): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  58. def min[B >: B](implicit cmp: Ordering[B]): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  59. def minBy[B](f: (B) ⇒ B)(implicit cmp: Ordering[B]): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  60. def mkString: String
    Definition Classes
    TraversableOnce → GenTraversableOnce
  61. def mkString(sep: String): String
    Definition Classes
    TraversableOnce → GenTraversableOnce
  62. def mkString(start: String, sep: String, end: String): String
    Definition Classes
    TraversableOnce → GenTraversableOnce
  63. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  64. def newBuilder: Builder[B, Traversable[B]]
    Attributes
    protected[this]
    Definition Classes
    GenericTraversableTemplate → HasNewBuilder
  65. def nonEmpty: Boolean
    Definition Classes
    TraversableOnce → GenTraversableOnce
  66. final def notify(): Unit
    Definition Classes
    AnyRef
  67. final def notifyAll(): Unit
    Definition Classes
    AnyRef
  68. def par: ParIterable[B]
    Definition Classes
    Parallelizable
  69. def parCombiner: Combiner[B, ParIterable[B]]
    Attributes
    protected[this]
    Definition Classes
    TraversableLike → Parallelizable
  70. def partition(p: (B) ⇒ Boolean): (Traversable[B], Traversable[B])
    Definition Classes
    TraversableLike → GenTraversableLike
  71. def product[B >: B](implicit num: Numeric[B]): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  72. def reduce[A1 >: B](op: (A1, A1) ⇒ A1): A1
    Definition Classes
    TraversableOnce → GenTraversableOnce
  73. def reduceLeft[B >: B](op: (B, B) ⇒ B): B
    Definition Classes
    TraversableOnce
  74. def reduceLeftOption[B >: B](op: (B, B) ⇒ B): Option[B]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  75. def reduceOption[A1 >: B](op: (A1, A1) ⇒ A1): Option[A1]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  76. def reduceRight[B >: B](op: (B, B) ⇒ B): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  77. def reduceRightOption[B >: B](op: (B, B) ⇒ B): Option[B]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  78. def repr: Traversable[B]
    Definition Classes
    TraversableLike → GenTraversableLike
  79. def reversed: List[B]
    Attributes
    protected[this]
    Definition Classes
    TraversableOnce
  80. def scan[B >: B, That](z: B)(op: (B, B) ⇒ B)(implicit cbf: CanBuildFrom[Traversable[B], B, That]): That
    Definition Classes
    TraversableLike → GenTraversableLike
  81. def scanLeft[B, That](z: B)(op: (B, B) ⇒ B)(implicit bf: CanBuildFrom[Traversable[B], B, That]): That
    Definition Classes
    TraversableLike → GenTraversableLike
  82. def scanRight[B, That](z: B)(op: (B, B) ⇒ B)(implicit bf: CanBuildFrom[Traversable[B], B, That]): That
    Definition Classes
    TraversableLike → GenTraversableLike
    Annotations
    @migration
    Migration

    (Changed in version 2.9.0) The behavior of scanRight has changed. The previous behavior can be reproduced with scanRight.reverse.

  83. def seq: Traversable[B]
    Definition Classes
    Traversable → GenTraversable → Parallelizable → TraversableOnce → GenTraversableOnce
  84. def size: Int
    Definition Classes
    TraversableOnce → GenTraversableOnce
  85. def sizeHintIfCheap: Int
    Attributes
    protected[scala.collection]
    Definition Classes
    GenTraversableOnce
  86. def slice(from: Int, until: Int): Traversable[B]
    Definition Classes
    TraversableLike → GenTraversableLike
  87. def span(p: (B) ⇒ Boolean): (Traversable[B], Traversable[B])
    Definition Classes
    TraversableLike → GenTraversableLike
  88. def splitAt(n: Int): (Traversable[B], Traversable[B])
    Definition Classes
    TraversableLike → GenTraversableLike
  89. def stringPrefix: String
    Definition Classes
    TraversableLike → GenTraversableLike
  90. def sum[B >: B](implicit num: Numeric[B]): B
    Definition Classes
    TraversableOnce → GenTraversableOnce
  91. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  92. def tail: Traversable[B]
    Definition Classes
    TraversableLike → GenTraversableLike
  93. def tails: Iterator[Traversable[B]]
    Definition Classes
    TraversableLike
  94. def take(n: Int): Traversable[B]
    Definition Classes
    TraversableLike → GenTraversableLike
  95. def takeWhile(p: (B) ⇒ Boolean): Traversable[B]
    Definition Classes
    TraversableLike → GenTraversableLike
  96. def thisCollection: Traversable[B]
    Attributes
    protected[this]
    Definition Classes
    TraversableLike
  97. def to[Col[_]](implicit cbf: CanBuildFrom[Nothing, B, Col[B]]): Col[B]
    Definition Classes
    TraversableLike → TraversableOnce → GenTraversableOnce
  98. def toArray[B >: B](implicit arg0: ClassTag[B]): Array[B]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  99. def toBuffer[B >: B]: Buffer[B]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  100. def toCollection(repr: Traversable[B]): Traversable[B]
    Attributes
    protected[this]
    Definition Classes
    TraversableLike
  101. def toIndexedSeq: IndexedSeq[B]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  102. def toIterable: Iterable[B]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  103. def toIterator: Iterator[B]
    Definition Classes
    TraversableLike → GenTraversableOnce
  104. def toList: List[B]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  105. def toMap[T, U](implicit ev: <:<[B, (T, U)]): Map[T, U]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  106. def toSeq: Seq[B]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  107. def toSet[B >: B]: Set[B]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  108. def toStream: Stream[B]
    Definition Classes
    TraversableLike → GenTraversableOnce
  109. def toString(): String
    Definition Classes
    ManagedTraversable → TraversableLike → AnyRef → Any
  110. def toTraversable: Traversable[B]
    Definition Classes
    TraversableLike → TraversableOnce → GenTraversableOnce
    Annotations
    @deprecatedOverriding( ... , "2.11.0" )
  111. def toVector: Vector[B]
    Definition Classes
    TraversableOnce → GenTraversableOnce
  112. def transpose[B](implicit asTraversable: (B) ⇒ GenTraversableOnce[B]): Traversable[Traversable[B]]
    Definition Classes
    GenericTraversableTemplate
    Annotations
    @migration
    Migration

    (Changed in version 2.9.0) transpose throws an IllegalArgumentException if collections are not uniformly sized.

  113. def unzip[A1, A2](implicit asPair: (B) ⇒ (A1, A2)): (Traversable[A1], Traversable[A2])
    Definition Classes
    GenericTraversableTemplate
  114. def unzip3[A1, A2, A3](implicit asTriple: (B) ⇒ (A1, A2, A3)): (Traversable[A1], Traversable[A2], Traversable[A3])
    Definition Classes
    GenericTraversableTemplate
  115. def view(from: Int, until: Int): TraversableView[B, Traversable[B]]
    Definition Classes
    TraversableLike
  116. def view: TraversableView[B, Traversable[B]]
    Definition Classes
    TraversableLike
  117. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  118. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  119. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  120. def withFilter(p: (B) ⇒ Boolean): FilterMonadic[B, Traversable[B]]
    Definition Classes
    TraversableLike → FilterMonadic

Inherited from Traversable[B]

Inherited from GenTraversable[B]

Inherited from GenericTraversableTemplate[B, Traversable]

Inherited from TraversableLike[B, Traversable[B]]

Inherited from GenTraversableLike[B, Traversable[B]]

Inherited from Parallelizable[B, ParIterable[B]]

Inherited from TraversableOnce[B]

Inherited from GenTraversableOnce[B]

Inherited from FilterMonadic[B, Traversable[B]]

Inherited from HasNewBuilder[B, Traversable[B]]

Inherited from AnyRef

Inherited from Any

Ungrouped